TransCanada GPML Loop No. 2 - McLeod River Section Direct Pipe Execution Plan

Transcription

1 TransCanada GPML Loop No. 2 - McLeod River Section Direct Pipe Execution Plan PROPOSAL SUBMITTED BY: INNOVATIVE PIPELINE CROSSINGS INC. SUBMISSION DATE: Nov Novembre 22, 2016 Page 1 of 128

2 ! Table of Contents! 1. PROJECT DESCRIPTION 2. SCHEDULE 3. ACCESS AND WORK PADS 4. STEERING PLAN 5. DIRECT PIPE INSTALLATION 6. EQUIPMENT a) Microtunnel Boring Machines (MTBM) b) Thruster c) Control Container d) Drilling Fluid Recycling System e) Anchoring System f) Steering and Guidance Equipment g) Noise Mitigation h) Auxiliary Equipment 7. ENGINEERED DRILLING FLUID PROGRAM 8. WATER SOURCE 9. FRACTURE MITIGATION STRATEGY 10. REPORTS 11. KEY PERSONEL RESUMES 12. DRILLING FLUID AND CUTTING DISPOSAL PLAN 13. SAFETY AND MEDICAL PERSONNEL/EQUIPMENT 14. DOCUMENT CONTROL AND CHANGE MANAGEMENT 15. ATTACHMENTS Appendix 1 Direct Pipe Methodology Statement Appendix 2 Schedule Appendix 3 Site Layout Appendix 4 Equipment Appendix 5 Auxiliary Equipment Appendix 6 Steering and Guidance Equipment Appendix 7 Noise Management Plan Appendix 8 Drilling Fluid Program Appendix 9 Operational Contingency Plan Appendix 10 Reports Appendix 11 Resumes Appendix 12 Management of Change Novembre 22, 2016 Page 2 of 128

3 2017 NGTL IPC System Inc. Expansion Project McLeod Highway River 16 DPI Crossing Execution Plan 1. PROJECT DESCRIPTION NOVA Gas Transmission Ltd. (the Company), is proposing to construct, own, and operate the Grande Prairie Mainline Lateral Loop No. 2 - McLeod River Section Pipeline (the Project), part of the 2017 NGTL System Expansion Project. The Project will include the installation of approximately 36 km of NPS 48 ( mm O.D.) pipeline. Within the scope of this new installation, the pipeline will cross Highway 16 near Edson, AB. The Company is considering the use of Direct Pipe Installation (DPI) for the pipeline installation underneath the highway. DPI Crossing Details Detail Description Legal Location NW W5M SW W5M KP Drawing Reference ML Estimated Length (m) 217 Anticipated Mud/Drilling Fluid Volume to be Disposed (m 3 ) Drilling Fluid: 52 Solid Spoil: 356 For reference on Direct Pipe, see Appendix 1, Direct Pipe methodology statement 2. SCHEDULE Construction of the project is shown in Appendix 2. Actual start and end dates will be confirmed after permits approval and site preparation. IPC will mobilize directly to site, during the site preparation phase. Once site preparation is complete, IPC s equipment installation will take place to be ready to commence drilling. Drilling operations are expected to take 4 days. Site preparation, equipment installation, and demobilization are based on a 10 hour/day on site, 6-day/week schedule, while drilling operation will be based on a 24/7 schedule. 3. ACCESS AND WORK PADS IPC will provide site layout requirements for the direct pipe installation. The layout drawings include entry pit dimensions, IPC equipment locations, workspace required, including rig matting, and internals installation position. The access to the site will be on designated roads on the designed plan as set out by NGTL. All access points will be constructed for safe all weather access for IPC crews and equipment. The site layout will be developed as per IPC s site layout drawings. Novembre 22, 2016 Page 3 of 128 1

4 2017 NGTL IPC System Inc. Expansion Project McLeod Highway River 16 DPI Crossing Execution Plan 4. STEERING PLAN The Highway 16 Direct Pipe crossing will be steered via gyro navigation system (U.N.S), (see appendix 6) which is installed inside the control container, along the proposed drill path. The north-seeking gyrocompass, which is firmly installed in the tunnel-boring machine, determines the north direction related to the machine axis. On the basis of dead reckoning, the current machine position is calculated. An electronic hose water level, which is integrated in the system, permanently delivers height values via a reference sensor installed in the start shaft and a height sensor installed in the tunnel boring machine. These height results are temperature-dependent and are not subject to laser refraction. The results are transferred to an industrial PC and displayed on the screen. Gyro Compass Accuracy toward magnetic north, gyro compass: NORTHSTAR 24 Pitch max. permissible range ± 90 Roll max. permissible range ± 90 +/- 2 mrad 1mm/m 1mm/m Technical data Input voltage: Degree of protection: 24 V DC ±6 V, 60W IP68 Operating temperature: -10 to +60 C Interfaces Dimensions (LxWxH) TTY and Profibus- DP 480 x 210 x 220 mm The accuracy of the gyrocompass is dependant on the number of control surveys. For the Highway 16 crossing, 1 control survey on this crossing length is estimated to give an accuracy within 50cm 5. DIRECT PIPE INSTALLATION DIRECT PIPE EXECUTION PLAN as: 24 October 2016 Innovative Pipeline Crossings Inc. (IPC) is pleased to submit the following Execution Plan for the Highway 16 Crossing on the GPML Loop No. 2 McLeod River Section. The following pages will describe as detailed as possible by this stage, the step by step execution of the scheduled crossing. A corresponding project schedule is attached to this paper. Novembre 22, 2016 Page 4 of 128 2

5 2017 NGTL IPC System Inc. Expansion Project McLeod Highway River 16 DPI Crossing Execution Plan Assumptions: IPC intends to carry out this project based on the following assumptions: Use IPC s Direct Pipe Thruster, clamping unit and 48 tunneling machine to install a 48 diameter product pipe along the route indicated on the drawings by the Direct Pipe Method. Based on geotech conditions, IPC s 48 MTBM will be equipped with a mixed face cutter head with OD1325mm, resulting in 53mm overcut, radially. The 48 Product Pipe Installation will be executed by 1 string of 247m (217m product pipe plus 15m drill in length plus 15m inspection length) at the north side of the hill on the Entry site. Ledcor anticipates access to the site January 10, Ledcor will require approximately 1 week of preparation prior to IPC heading to site. Description of Steps / Construction Schedule This Construction Schedule considers different phases along with the Drill Path. Project Specific Phases: 1. Final Design & Engineering 2. Site Preparation 3. Equipment Installation 4. Drilling 5. Demobilization TASKS and DUTIES: Phase 1: Design & Engineering (to be completed prior to site access) Review all drawings, specifications and contract documentation Confirm final scope of work between IPC, NGTL and any Prime Contractor Determine final location for launch chamber, retrieval chamber and tunnel route including crane locations for equipment placement and product pipe handling Determine exact final length of the pipe string and location of slurry system Prepare final launch and retrieval site layout drawings including site access, equipment locations, office locations, and hazards (e.g. overhead, underground lines) Finalize engineering and develop final construction drawings for launch pit and thruster foundations Confirm slurry and bentonite mix parameters, testing, reporting protocols Confirm drilling fluid and cuttings disposal/mixing requirements Confirm Construction Schedule and Execution Plan along with project HS&E risks and mitigates, manpower and equipment requirements Confirm any sub trade, aboriginal and supplier agreements Finalize equipment and consumables purchase commitments Finalize mobilization requirements and commitments Finalize personnel resources scheduling and commitments Confirm site reporting protocols Site Visit by operations management Novembre 22, 2016 Page 5 of 128 3

6 2017 NGTL IPC System Inc. Expansion Project McLeod Highway River 16 DPI Crossing Execution Plan Phase 2: Site Preparation The site preparations will be based on a 10 hour/day on site, 6 day/wk schedule Site safety orientations with all personnel, establish muster point, review emergency response Initial site facilities will be transported and set up o Medical first aid facility and or medical transport vehicle if required o Site office on DPI drilling site o Crew change and washroom facilities o Generator o Workshop/parts o Light Towers Survey of the launch and exit pit location for final dimensioning and staking Sheet Pile of the launch pit according to the final design in place by that time with excavator and hammer After sheet piling the launch pit, the excavator will dig the entry pit, ramp and exit pit o Sump pumps will be in place to maintain any ground water entering the pit. IPC will work with Prime Contractor and NGTL Environmental Inspector (EI) for dewatering procedures. o Safety barriers will be placed around the pit Sheet pile support structure will be constructed to support the walls of the entry pit if required in the final design. Design will be stamped prior to construction; sheet piles alone will not be stamped. Clay fill will be piled and compacted above the entry point to the top of the sheet piling The entry pit will be prepared for proper concrete floor installation if required due to significant ground water The cement sealing floor will be installed according to the latest design if required If ground water is not a concern, a packed gravel/sand base will be prepared and rig mats may be placed in the pit for thruster and personnel footing Following the entry pit construction the foundation frame and all related steel structure will be installed and fixed The launch seal will be installed in accordance with the final designs and procedures Simultaneously to or prior to the sheet pile and entry pit construction, the prime contractor will place rig mats according to the rig mat plan, build up the internal lines assembly pad, build up roller support areas and place the pipe rollers along the final alignment according to the final lift plan Prime contractor will line out, weld together and inspect the 48 product pipe string estimated at 247m (217m product pipe plus 15m drill in length plus 15m inspection length) at the north side of the hill for a relatively flat layout. Phase 3: Equipment Installation The equipment installations will be based on a 10 hour/day on site, 6 day/wk schedule Transport Phase 1 is the transportation of all internals. It consists of bringing all internals for the installation inside the 48 Product Pipe on site. This equipment consists of: o Slurry Pipes o Power Supply Cables o Feed and Discharge Pumps o Roller Brackets o Navigation (HWL) Novembre 22, 2016 Page 6 of 128 4

7 2017 NGTL IPC System Inc. Expansion Project McLeod Highway River 16 DPI Crossing Execution Plan o o Data Cables Man Transport Vehicles if required Once all internals are unloaded and the 48 product pipe is fully lined up, the IPC crew will install the internals into the product pipe Transport Phase 2 refers to the transportation of all major components. It considers the clearance of all temporary working space and congestion on the entry site. Once safe to do so, the major components will arrive on site: o Pipe Thruster o Tunneling Machine o Control Container o Mud Plant o Generators o Boiler o Other Third Party Supplies and Consumables After arrival, the crew will step by step clear the arriving trucks and place all components at it s position or staging position according to the latest jobsite layout The crane will be positioned at the launch pit according to the thruster lift plan The pipe thruster will be placed and secured within the launch pit together with the tunneling machine The final product pipe section and internal lines will be placed at the starting position on the rollers at the thruster position The MTBM will be welded to the Product Pipe and inspected The slurry hoses and cords (service lines) will be positioned from the mud plant, control center and generators and connected to the pre-installed lines in the product pipe The thruster clamp will be raised above the product pipe, opened and lowered onto the product pipe, closed around the pipe and the thruster cylinders stroked and pined to the clamp All connections will be finalized and tested The mud and boiler systems will be assembled Make up water will be placed into the premix tanks and drilling fluids prepared to the mud program Drilling solids disposal trucks and loading equipment will be available by Prime Contractor Final system checks, function testing, pressure testing slurry lines, navigation system confirmation and commissioning will be performed Pipe string and MTBM will be thrust forward through the lubricated launch seal Ready to drill Phase 4: Drilling The drilling operation will be based on a 24/7 schedule. Pre drill meetings will be conducted to ensure all preparations are complete Slurry pumps, shakers will be started and the MTBM cutter head rotated while thrusting Service lines into the product pipe will be managed as the pipe advances Bentonite injection systems will be started once cutters and rotating assembly is advanced past the launch seal area Drill cuttings and fine solids will be mixed with an absorbent material (sawdust, etc) if required and transported to an approved disposal site in accordance with applicable regulation and requirements as required by NGTL or prime contractor disposal plan Novembre 22, 2016 Page 7 of 128 5

8 2017 NGTL IPC System Inc. Expansion Project McLeod Highway River 16 DPI Crossing Execution Plan Continual drill path monitoring, including settlement/heaving monitoring and cuttings return monitoring, will be performed and steering corrections made as required to follow the designed drill path Thrust forces, torque readings, drill cuttings returns and losses will be monitored and adjustments to slurry and injection fluids will be made as required Drilling fluid and injection fluid volumes will be replenished as required Drilling systems will be stopped as the MTBM enters the exit pit o Sump pumps, surface tank or vac truck will be in place to maintain any excess drilling fluid or ground water entering the pit The exit hatch will be opened The slurry and bentonite lines will be bypassed and the drilling fluid will be pumped back to the tank with fresh water and then blown out with air (low pressure, max 3bar) The internal lines will be disconnected from the MTBM and will be separated from the installed product pipe. The MTBM will be recovered from the exit pit and the product pipe capped or secured as required 15m additional product pipe will be thrust through the tunnel for pipe inspections in the exit pit The service lines will be disconnected at the entry end of the product pipe string and the internal lines removed and packaged The product pipe will be cut off in front of the thruster clamp and the final end capped or secured as required Phase 5: Site Demobilization The site de-mobilization will be based on a 10 hour/day on site, 6 day/wk schedule The service lines will be cleaned and disconnected from the mud system, packaged and de-mobilized The crane will be positioned beside the entry pit, the clamp weight secured, the thruster cylinders unpinned and retracted. The clamp, thruster, foundation frame and related equipment will then be dis-assembled and demobilized Any remaining fluids in the mud system tanks and drill solids will be removed. The mud disposal will be managed by the Prime Contractor in accordance to EPP. The mud system tanks will be cleaned with a vac truck, packaged and de-mobilized Tear out remaining equipment and demobilize from site Remove launch seal and sheet piling Remove pit mats or floor Site restoration and reclamation to be done by Prime Contractor 6. EQUIPMENT a) Microtunnel Boring Machine (MTMB) IPC will be using their 48 MTBM (Outer diameter 1325mm) with a mixed face cutter head. In the case that different geotechnical conditions from the boreholes are expected, the cutter head could be changed to meet the ground conditions. See Appendix 4. Novembre 22, 2016 Page 8 of 128 6

9 2017 NGTL IPC System Inc. Expansion Project McLeod Highway River 16 DPI Crossing Execution Plan b) Thruster IPC owns both a Herrenknecht 500T and 750T thruster. IPC will be using the 500T thruster for the Highway 16 crossing. See Appendix 4. c) Control Container IPC owns 2 hydraulic control containers (C30) for the operations of controlling both the MTBM and thruster. See Appendix 4. d) Drilling Fluid Recycling System IPC will provide a mud plant with sufficient capacity to match the required pumping rate and mud volume calculations. The mud plant will consist of de-sanders, de-silters, shakers, and a centrifuge. e) Anchoring System The pipe thruster will be anchored via piling and IPC s foundation base. f) Steering and Guidance Equipment The crossing will be performed according to the IFC drawings provided by NGTL. The centerline will be surveyed and set up for guidance system prior to operation. A gyro and hydrostatic water level steering system will be utilized for the steering. See Appendix 6 for operations manual. g) Noise Mitigation For noise mitigation to the public, NGTL is working with one landowner to adequately fence the property to provide safety for the horses and mitigate any construction noise associated with the crossing. For noise mitigation of workers, refer to IPC s noise management plan in Appendix 7. h) Auxiliary Equipment IPC will provide all required auxiliary equipment to complete operations efficiently. A list of auxiliary equipment has been attached in Appendix ENGINEERED DRILLING FLUID PROGRAM A drilling fluid program has been provided for the Highway 16 Direct Pipe crossing, see Appendix 8. The program included mud volume calculations as well as proposed drilling fluids. Drilling fluids will be checked regularly when drilling operations have commenced to comply with the drilling fluid program. 8. WATER SOURCE Onsite storage of water will be provided by the Prime Contractor. It is expected water will be trucked to onsite storage tanks. IPC expects total water consumption of approximately 186m3, see appendix 8. Novembre 22, 2016 Page 9 of 128 7

10 2017 NGTL IPC System Inc. Expansion Project McLeod Highway River 16 DPI Crossing Execution Plan 9. FRACTURE MITIGATION STRATEGY Refer to IPC s Operational Contingency Plan, in Appendix 9, section 9 BORING PROCEDURES AND INSTREAM DRILLING FLUID RELEASE CONTINGENCY PLAN, drilling fluid program. 10. REPORTS Shift reports, including daily reports, mud sample reports and Daily drill data report (when drilling) will be completed manually on site and kept records in a binder and on IPC s cloud storage as well as daily safety tailgate meetings and all other required safety reports. See Appendix KEY PERSONNEL RESUMES A project organizational structure has been provided to show the structure of the key personnel. The following key personnel will be assigned to the project. Resumes can be found attached in Appendix 11. Project Advisor Project Director Project Manager Site Supervisor Operations Supervisor Operator 12. DRILLING FLUID AND CUTTING DISPOSAL PLAN IPC has included surface storage for drilling cuttings of 40m3 per shift. If bins or additional surface storage are required for continuous operations, they will be provided. All disposal of fluids and solids will be managed by the Prime Contractor. 13. SAFETY AND MEDICAL PERSONNEL/EQUIPMENT All of IPC s vehicles, office facilities and control containers are equipped with first aid response kits. First aid trained personnel will always be on site and available. All personnel will have radios for onsite communication. IPC s safety programs follow NGTL s and the Prime Contractors requirements and plans. 14. DOCUMENT CONTROL AND CHANGE MANAGEMENT Refer to IPC s Management of Change document attached in Appendix 12. Novembre 22, 2016 Page 10 of 128 8

11 2017 NGTL IPC System Inc. Expansion Project McLeod Highway River 16 DPI Crossing Execution Plan 15. ATTACHMENTS Appendix 1 - Appendix 2 - Appendix 3 - Appendix 4 - Appendix 5 - Appendix 6 - Appendix 7 - Appendix 8 - Appendix 9 - Appendix 10 - Appendix 11 - Appendix 12 - Direct Pipe Methodology Statement Estimated Schedule Site Layout Equipment Auxiliary Equipment Steering and Guidance Equipment Noise Management Plan Drilling Fluid Program Operational Contingency Plan Reports Resumes Management of Change Novembre 22, 2016 Page 11 of 128 9

12 APPENDIX 1 DIRECT PIPE METHODOLOGY STATEMENT Novembre 22, 2016 Page 12 of 128

13 2017 NGTL IPC System Inc. Expansion Project DIRECT PIPE METHOD STATEMENT GENERAL METHOD STATEMENT... 2 Main Characteristics of the DIRECT PIPE Method... 7 MAIN COMPONENTS... 7 Microtunnel Boring Machine (MTBM)... 8 Adapter/joint Pipes... 8 Internal Pipe Equipment, Feeding Pipes... 8 The Steering Unit Steer ability... 9 Pipe Thruster - Jacking and Pulling Unit... 9 Support of the Annular Gap Recycling Unit Jacking pipe, pipeline to be installed OBSTACLES IN THE GROUND What has to be Done by the Occurrence of Obstacles in the Ground Recovering Obstacles in Case of Accessible MTBM and Pipe Recovering Obstacles in Case of Non-Accessible MTBM and Pipe OBSTACLES SIZE MORE THAN 3 M OBSTACLES SIZE OF 1.50 M OBSTACLES WITH A SIZE OF 30 % OF THE PIPELINE DIAMETER PREPARATION OF CONSTRUCTION PROCESS Soil Conditions Implementation Drawings Construction Description / Construction Schedule Calculations Volume / Mass Balance Machinery breakdown AVAILABILTY OF PERSONNEL AND EQUIPMENT FINAL COMMENTS Novembre 22, 2016 Page 13 of 128 1

14 2017 NGTL IPC System Inc. Expansion Project General Method Statement The DIRECT PIPE method is a trenchless pipe-laying method which contains the fabrication of a subterraneous cylindrical hole in the ground through simultaneous excavation and installation of a prefabricated pipeline within the pipes allowable bending radius for the whole crossing section. The DIRECT PIPE method can be applied for crossings with the possibility of pipe assembly in full length or parts on at least one side of the crossing and drilling the pipe with the sloped direction of the entry pit. The DIRECT PIPE method combines the advantages of the well-established construction methods - Microtunneling and Horizontal Directional Drilling (HDD). By this method the pipeline is laid in one single working step without using additional protection pipes or large-volume hydraulic borehole supporting media (see Figure 1.01). Figure General illustration of a river crossing using the DIRECT PIPE method with the essential system components jacking-machine, pipeline and Pipe Thruster. [Herrenknecht AG] Unlike the present pipe jacking method, the jacking force of the excavation machine is not applied in short pipe sections from a starting pit. Instead, the jacking force is applied via a Pipe Thruster (Hydraulic pushing equipment) onto the pipe to be driven which is laid on a launching way in the appropriate length or in parts like in the HDD or bottom pull method. Novembre 22, 2016 Page 14 of 128 2

15 2017 NGTL IPC System Inc. Expansion Project The Pipe Thruster works like a tensioner known from offshore pipe and cable installation. The force developed via the hydraulic cylinders is transmitted onto the pipe by friction through the pipe clamp, and therefore the pipe coating is not damaged. The Pipe Thruster is safely anchored in the ground by appropriate construction. The Pipe Thruster will push the microtunnel boring machine (MTBM) and attached pipe through the launch seal into the ground. The pipeline transmits the essential jacking force for the drilling process. The connection lines, which are essential for supplying the MTBM, will be led through the pipe before starting the tunnelling process and connected via flexible cables to the appropriate supply and steering equipment. This supply and equipment will include a steering controls, power supply, Slurry systems and mud plant via temporary lines (see Figure 1.02). Figure 1.02: General illustration of the starting situation with drill head, pipe string, Pipe Thruster, steering cabin, power supply, recycling unit [Herrenknecht AG] As mentioned above, the Pipe Thruster pushes the MTBM in sloped direction via the product pipes into the ground. The machine is controllable and can be located in order to follow the pre-determined access gradient. The steering is carried out by a steering cylinder, which is integrated into the machine similarly to the microtunneling method. Surveying/locating of the machine is realised Novembre 22, 2016 Page 15 of 128 3

16 2017 NGTL IPC System Inc. Expansion Project by a gyro system inside the machine with an accuracy of a few millimetres up to centimetre in vertical direction and a few centimetres in horizontal direction. Figure Application in a starting pit, Pipe Thruster [Herrenknecht AG] As the Microtunneling-technology is known, the excavation will be done by a cutting head, which is adapted to the geological conditions. The removal of overburden will be mixed with a bentonite-water-suspension, which is supplied by a feeding line, and pumped through a return pipe to the separation station. Here, the soil will be separated by shaker screens and hydrocyclons (or centrifuges depending on conditions) from the bore suspension. Afterwards, the soil can be removed and if necessary disposed. The bore suspension will be reused. The microtunneling machine has a larger diameter than the following product pipe; this annulus has to be filled with drilling fluid to prevent a collapse of the driven cylindrical annulus and to lower the jacket friction. Contrary to the HDD method the DIRECT PIPE method has a very small overcut of approx. 5 cm. Therefore and because of the pipe which is filling the borehole, only a little mass of the drilling fluid is used and penetrated to the subsoil (see Figure 1.04). Novembre 22, 2016 Page 16 of 128 4

17 2017 NGTL IPC System Inc. Expansion Project Figure 1.04: General illustration of the mud circulation [Herrenknecht AG] After driving in the pre-determined access gradient and reaching the reception pit, the excavation machine will be disconnected from all essential internal components and recovered. The internal components will be removed from the product pipe and the product pipe will be integrated to the pipeline network. If the pipeline has the function of a casing pipe, the product pipes will be retracted into the pipeline. Figure 1.05: Removing the cutter head after having laid the pipe [Herrenknecht AG] Novembre 22, 2016 Page 17 of 128 5

18 2017 NGTL IPC System Inc. Expansion Project All system components where developed have been successfully used in many microtunneling and HDD projects. The DIRECT PIPE method can be applied for the pipe jacking of product pipes as well as of steel protection pipes. Figure 1.08: Procedure of the DIRECT PIPE method Novembre 22, 2016 Page 18 of 128 6

19 2017 NGTL IPC System Inc. Expansion Project Main Characteristics of the DIRECT PIPE Method The risk of failure due to subsoil conditions is minimised A pipe is permanently in the borehole and thus supporting the borehole permanently. A complete collapse of the bore hole with cave-in is impossible The cutter head of the excavation machine can be provided with the appropriate tools for nearly all geological conditions Rocks can be crushed and removed through supply lines within the product pipe out of the borehole; therefore deposits in the borehole are impossible. Very large bending radii can be driven with a high accuracy due to the approved steering mechanism; thereby avoiding excessive bending stress (inadmissible low bending radii of the pipeline) and excessive laying forces Only on the entry side is a larger working area is required On the exit side, only a small working area for a short time is necessary (operation to dismantle the cutting head) A minimum volume of slurry is required and the amount of excavated material is minimized Due to a very small overcut a minimal borehole diameter can be realized Due to the continuous pipe jacking, the effective drilling time is low and high laying performance can be expected Large-diameter product pipe can be laid without casing pipes Jacking pipe can also be laid in parts MAIN COMPONENTS Main components for the application of the DIRECT PIPE method are: MTBM - Soil excavation and transportation unit Adapter/joint pipes Internal equipment, feeding pipes etc Steering unit steerability Pipe Thruster - Jacking and pulling unit Support of the annular gap Separation and mixing unit Pipeline to be laid By co-action of these single components for the DIRECT PIPE method, the laying of pipelines in one working step is possible. Novembre 22, 2016 Page 19 of 128 7

20 2017 NGTL IPC System Inc. Expansion Project Microtunnel Boring Machine (MTBM) At the cutter face, the soil is loosened by a cutter head, which is fit with excavation tools according to the geology to be expected and carried to the MTBM. The cutter face is supported by a bentonite water suspension. Harder soil layers; conglomerates and rock, as well unstable soil (gravel) can be driven. To avoid bonding of the cutter head and to enable a direct removal of the loosened soil by transmission pipelines and to avoid a discharge through the overcut a special medium pressure jetting with the ability to change to high pressure is applied. Thereby, the slurry-liquid will be flushed with 7-9 bar and L/min against the backside of the cutter head. Impact and turbulences ensure an optimal removal. The required increase of pressure will be provided by special high pressure pumps from the horizontal bore technique. A modified cone crusher takes care for the removal optimal grit size. Figure 1.04 illustrates how the cutter head can be fit with excavation tools and how the excavated soil is mixed with the bentonite water suspension and pumped via a solid pump through the MTBM and the pipes within the pipeline to the end of the pipeline and to the recycling unit respectively. From the cutter head, created tensional moments will be transfused by jacked friction into the ground. To avoid a transmission of tensional moments along the longitudinal axis from the MTBM into the pipeline and inverse, the MTBM and the pipeline are connected via an active swivel joint. By activating the swivel joint the rollover of the MTBM can be directly corrected. Adapter/joint Pipes Additional adapter pipes will be installed between MTBM cutter head and pipeline in order to improve the steerability. These connections give the possibility of horizontal and vertical bending. The arrangement of steering cylinders and creation of an active joint gives a further increase of steerability to the MTBM. Internal Pipe Equipment, Feeding Pipes All internal pipes and cables will be supported by special steel brackets on rubber wheels. No direct contact with the inner pipe wall will occur and thus damages can be excluded. Since the brackets are on rubber wheels, the internal pipe installed equipment can be easily removed by a cable winch and disassembled. Novembre 22, 2016 Page 20 of 128 8

21 2017 NGTL IPC System Inc. Expansion Project A battery driven tunnel vehicle can be mounted on the internal roller rails. In face of the confined space, this provides a secure transportation of persons and material through the pipeline. The tunnel vehicles enable, in agreement with the safety and testing authorities, personnel to reach the MTBM through the pipeline. The Steering Unit Steer ability The steering unit differs from the previous units in microtunneling (see Figure 1.02). A special AVN-microtunneling-steering unit is used. This unit is upgraded with special steering, navigation and monitoring components for the DIRECT PIPE method. Thereby the Pipe Thruster, active swivel joints and directional cylinders will be controlled. The steering unit is situated in an air-conditioned part of a container. All essential steering and control tasks can be operated remotely via the steering unit. All hydraulic cylinders, pumps, engines and cameras can be steered whereas all moments, revolutions, masses, distances, slopes and positions are measured, registered and recorded. All control and steering tasks are performed by a trained operator. The steering process that is executed by one or several hydraulic cylinders is based on an accurate survey. The survey is performed by a combined system of an electronic barometric level and a gyro. Based on the data of these two survey devices, the three-dimensional position of the machine is determined and visualized according to the previously calculated required position in the steering unit. By this, it is possible to drive the required curvature very accurately with the elastic bending radius and to aim the indicated target on the spot. Pipe Thruster - Jacking and Pulling Unit The Pipe Thruster is able to transfer thrust and traction forces in single lifting steps into the pipeline by frictional forces. The clamping unit puts the grip from the outside around the pipeline by a clamp unit and moves the pipeline by hydraulic cylinder forward or backward. By exchange of the clamp unit the Pipe Thruster is able to put the grip around pipes from 20 up to 60. The two jacking cylinders are able to create, by a lift of 5 m and a Novembre 22, 2016 Page 21 of 128 9

22 2017 NGTL IPC System Inc. Expansion Project moving speed of 5 m/min, a maximum pull and compressive force of 5000 kn up to 7500 kn depending on the unit type. The clamp unit, together with the hydraulic cylinders are pivot supported, so that flatter or steeper moving angles are possible. The Pipe Thruster is with total weight of 45 to 60 ton depending on the unit type and is modularly demountable for an easy transport. The Pipe Thruster has to be based accurately to be able to transfer the forces into the construction and the basement. Support of the Annular Gap In order to reduce the pressing forces (friction between pipe and soil) it is necessary to create a lubricant layer between the jacking pipe and the soil. This lubricant layer arises if the heading diameter at the cutting head is larger than the diameter of the following pipeline and the annular gap is filled with lubricants. The thickness of the annular gap depends on the present geology and the relation between pipe stiffness and required driving curve. The creation of a clean annular gap is very important. Therefore the coating of the MTBM, the following pipes and the adapter pipes are designed conically to slowly obtain the required annular gap. Directly behind the cutting head e.g. a bentonite water suspension is pressed into this annular gap as lubricant. In the transition area from adapter pipe to the pipeline the annular gap is completely filled with bentonite water suspension. To avoid an uncontrolled penetration of the lubricants to the soil and a collapse of the annular gap during the driving process, the annular gap is measured and controlled in the area of the exit seal. The contained bentonite water suspension is kept on a previously calculated constant level. Recycling Unit The mud plant (see Figure 1.02) is used to contain a bentonite-water suspension tuned for a particular geology, for supporting the cutting head operation and controlling the annular gap. This is aided by feed pumps and pipelines to the particular location. The recycling unit is also used to separate the cuttings into water-bentonite mixture and soil so the soil can be disposed of and the water-bentonite suspension reused. The reusable suspension will be verified according to its composition, if necessary loaded with bentonite or other environmentally friendly substances and pumped with the help of feed and bentonite pumps and pipelines to the location. Novembre 22, 2016 Page 22 of

23 2017 NGTL IPC System Inc. Expansion Project Jacking pipe, pipeline to be installed For the use of the DIRECT PIPE method, a pipeline capable of containing the internal components and cables as well as the pump aggregates is necessary. The pipeline has to be built of a material which is able to withstand the required moving forces that can be created by the Pipe Thruster. The jacking pipe can be a product pipe or a casing pipe, which is only used as a protective pipe. OBSTACLES IN THE GROUND What has to be Done by the Occurrence of Obstacles in the Ground During the execution of trenchless construction work, obstacles that are neither known nor examined may be encountered. For the execution of trenchless pipe laying processes by the DIRECT PIPE method, this might cause difficulties. For the evaluation of risks in case of obstacles it is essential to accomplish appropriate engineering work and develop mitigating measures. As illustrated below, the occurrence of natural obstacles is no reason to stop of the drilling work. With an accurate site preparation and investigation of the soil through the client, the ability to handle a natural obstacle and finish the drilling successfully is almost always a given by todays machine technology. Recovering obstacles in case of accessible MTBM Recovering obstacles in case of non-accessible MTBM Recovering Obstacles in Case of Accessible MTBM and Pipe 56 With a minimum tunnelling diameter of 56 (meaning MTBM of 60 ) the MTBM at the tunnel face is accessible. A pressurised work environment is created in the sleeving pipe and the MTBM. The excavated hole in front of the MTBM is kept stable by the compressed air; the obstacle can be hackled manually and transported to the starting pit. Having this option, nearly every obstacle that hinders the DIRECT PIPE method can be recovered without surface intervention. The following options for recovering obstacles in case of non-accessible MTBM's are also applicable for driving processes with accessible MTBM s. Recovering Obstacles in Case of Non-Accessible MTBM and Pipe 48 In case of non-accessible jacking pipes/mtbm s with a diameter equal or less than 48 the recovery or the handling of obstacles depends on the size of the obstacles. Novembre 22, 2016 Page 23 of

24 2017 NGTL IPC System Inc. Expansion Project OBSTACLES SIZE MORE THAN 3 M Obstacles in size more than 3 m are embedded and stable in the ground and will not be moved from their position by a MTBM with a maximum diameter of 1.3m. So, in this case the fixed obstacle can be drilled by the MTBM and the obstacle does not obstruct the tunnelling process. OBSTACLES SIZE OF 1.50 M Obstacles with a maximum size of 1.50m encountered during the DIRECT PIPE method will start to move in the ground when cut by the MTBM. These obstacles are not stable and can therefore not be handled, driven or hackled by the MTBM, as the MTBM excavation tools cannot act any pressing force and moment on the obstacle. Hence these kinds of obstacles must be recovered from the surface. Prior to the recovery of the obstacle the MTBM is pulled backwards a by the Pipe Thruster in order to not damage the MTBM when constructing the recovery shaft. Depending on the available equipment and depth of the problem, the recovery shaft might consist of concrete rings or sheet piling. The concrete rings or the sheet piling are lowered to the underground. The soil within the concrete rings or the sheet piling is excavated and the obstacle is recovered, if necessary with the help of divers. Concrete rings can be left in the underground as they can be driven by the MTBM but sheet piling must be removed. OBSTACLES WITH A SIZE OF 30 % OF THE PIPELINE DIAMETER Obstacles e.g. stones in size less than 30% of the jacking pipeline diameter can be hackled by an integrated stonebreaker and discharged hydraulically by the drilling fluid. PREPARATION OF CONSTRUCTION PROCESS Before applying the DIRECT PIPE method for each single project, a detailed preparation of the construction process according to local conditions is performed. For this, drawings, calculations and detailed descriptions are created. The following list gives a rough overview about the scope of the engineering work. An essential part of the preparation process is the examination of soil conditions. Soil Conditions Soil research on the basis of experiences from similar projects near to the project location, Detailed review of soil investigations provided by the client Evaluation whether the soil information is sufficient for the application of the DIRECT PIPE method Information of the client about the results of the upcoming evaluation If necessary additional soil investigations Advises to client concerning possible obstacles and risks during construction process Implementation Drawings The following implementation drawings based on the local survey are created: Novembre 22, 2016 Page 24 of

25 2017 NGTL IPC System Inc. Expansion Project Longitudinal section of the designed crossing Layout with illustration of intended crossing route Drawings which include the site equipment and the required terrain A current profile of the terrain is integrated in the longitudinal section. For the crossing of rivers a current profile of the riverbed in the crossing area is included. If an updated profile of the terrain / riverbed is not available new soundings of the riverbed should be accomplished. Construction Description / Construction Schedule In sufficient time a construction description and a construction schedule will be submitted. In addition to a description of the project-related construction process, the construction description must also contain information concerning the mastering of critical work steps, e.g. mixing of used transporting, supporting respectively lubricant suspension. If the client makes certain demands with respect to the execution of the work (e.g. avoiding of a twisting of the pipeline), it will be explained how observance of these demands can be ensured. The construction schedule indicates the interdependencies of the individual work steps. A meaningful construction schedule for the execution of tunnelling work according to the DIRECT PIPE method, including pipe building, is subdivided in the following subordinate working steps: Preparation of the grounds Site surveying Site installation Installation of starting and reception pit with entrance and exit wall Assembling of pipeline Crossing process Quality control work Clearing of the sites Restoration of the grounds Creation / transfer of the as-built documentation The construction schedule must refer to current calendar days and is to be corrected in the event of target actual deviations of more than 5% of the indicated total building time. Calculations The following numeric proofs according to the particular valid technical standard will be performed. Pipe static acc. to technical standard for the jacking pipe Calculation / proof of allowed bending radius of jacking pipe Calculation / proof of the jacking force essential for the jacking of the pipe and the MTBM Calculation / proof of the Pipe Thruster anchorage Novembre 22, 2016 Page 25 of

26 2017 NGTL IPC System Inc. Expansion Project Necessary supporting pressure in the annular gap Calculation / proof of force transmission from the Pipe Thruster to the jacking pipe without damaging the coating designed by the client Proof about installation of pipes into the jacking pipe. For this, the permitted pulling forces and the safety against buckling for each pipe must be proven Dimensioning of roller-supports and determination of distances during installation and driving-in of jacking pipe. Determination of the over bend including appropriate proofs of stress for the moment of pushing in the pipe. For the hydraulic soil transport the hydraulic proof of the pump capacity according to the soil excavation rate, the pipe section of the transportation line and the pipe length is performed. Hereafter all components of the mud circulation are dimensioned. Volume / Mass Balance It will be proven by an appropriate method that the excavated soil mass corresponds to the borehole volume according to the driven length. It is documented how the comparison of the volumes was accomplished and indicated how much supporting fluid penetrates to the ground how much drilling fluid is carried back with the excavated soil and has to be recycled. Machinery breakdown Single aggregates in the MTBM that fail can be manually substituted by trained mechanics onsite and the machine can be started up again. If reparation is not possible the pipe must be pulled back together with the machine. The cylindrical hole, which will be created by pulling back the MTBM, will be filled with a selfhardening special drilling fluid mixture. It will be paid attention to that this mixture has no polluting effects on the environment. The solidity of the drilling fluid will be adjusted in that way that it is assured to fill and support the ground and the drilling fluid can be easily excavated again by the MTBM. AVAILABILTY OF PERSONNEL AND EQUIPMENT The pipe jacking according to the DIRECT PIPE method demands a 24 h operation. Therefore it will be ensured that there is enough field service personnel and equipment on the site at any time available. FINAL COMMENTS For each project the engineering work will be accomplished comprehensively in a way that the risk of a failure by using the DIRECT PIPE method is, except for unpredictable conditions, minimised. The client can be sure that prior to the construction process all possible contingencies will be concerned and dissolved by engineering solutions. Novembre 22, 2016 Page 26 of

27 APPENDIX 2 SCHEDULE Novembre 22, 2016 Page 27 of 128

28 IPC PRELIMINARY SCHEDULE for HWY 16 ID Task Name Duration Start Finish 1 Highway 16 Crossing 45 days Tue Wed Phase 1 - Design & Engineering Complete 0 days Tue Tue '17 Jan 08 '17 Jan 15 '17 Jan 22 '17 Jan 29 '17 Feb 05 '17 Feb 12 '17 Feb 19 '17 Feb 26 '17 Mar 05 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S Highway 16 Crossing Phase 1 - Design & Engineering Complete Phase 2 - Site Preparation (10hr/dy, 6dy/wk) 11 days Tue Sat Phase 2 - Site Preparation (10hr/dy, 6dy/wk) Site Access 0 days Tue Tue Survey Launch and Exit Pit + Set up Facilities 1 day Tue Tue Site Access Survey Launch and Exit Pit + Set up Facilities Sheet Pile, Excavate Install ground floor of Launch Pit 4 days Wed Sat Sheet Pile, Excavate Install ground floor of Launch Pit Excavate Exit Pit 2 days Mon Tue Excavate Exit Pit Place Rig mats/roller Support/Laydown Area complete (Prime Contractor) 9 days Tue Thu Place Rig mats/roller Support/Laydown Area complete (Prime Contractor) Launch Pit Complete 0 days Sat Sat Launch Pit Complete Entry Foundation Assembly, Installation and Welding to Sheet Piles 6 days Mon Sat Entry Foundation Assembly, Installation and Welding to Sheet Piles Install Launch Seal 1 day Sat Sat Install Launch Seal Phase 3 - Equipment Installation (10hr/dy, 6dy/wk) 14 Product Pipe Complete for Internals Installation 17 Mon Fri days 0 days Mon Mon Phase 3 - Equipment Installation (10hr/dy, 6dy/wk) Product Pipe Complete for Internals Installation Install Boiler, Mud & Bentonite Systems 4 days Mon Thu Install Boiler, Mud & Bentonite Systems Installation of Tent, Internal Pipe & Cable In Product Pipe 4 days Mon Thu Installation of Tent, Internal Pipe & Cable In Product Pipe Install External Service Lines 3 days Fri Mon Install External Service Lines Install Thruster & Control Container 1 day Mon Mon Install TBM 1 day Tue Tue Install Thruster & Control Container Install TBM Rollers in position/drag section complete 0 days Fri Fri Rollers in position/drag section complete Move Pipe from Installation Position to Drill Position and weld to TBM 1 day Fri Fri Move Pipe from Installation Position to Drill Position and weld to TBM Locate & Install Clamp 1 day Sat Sat Final Connections & Control Lines 2 days Mon Tue Test Direct Pipe Equipment 3 days Wed Fri Pre Mix Drilling Fluid 3 days Wed Fri Survey Baseline & Guidance system setup 1 day Wed Wed Ready to Drill 0 days Fri Fri Phase 4 - Drilling (24/7) 5 days Sat Wed Drilling Operations 4 days Sat Tue Transportation & Disposal of cuttings 4 days Sat Tue Installation Complete 0 days Tue Tue Disconnect & Remove TBM 1 day Wed Wed Locate & Install Clamp Final Connections & Control Lines Test Direct Pipe Equipment Pre Mix Drilling Fluid Survey Baseline & Guidance system setup Ready to Drill Phase 4 - Drilling (24/7) Drilling Operations Transportation & Disposal of cuttings Installation Complete Disconnect & Remove TBM Phase 5 - Demobilization (10hr/dy, 6dy/wk) 13 days Wed Wed Phase 5 - Demobilization (10hr/dy, 6dy/wk) Push pipe extra 10m and Inspect 1 day Wed Wed Remove Pipe/Cable from inside Product Pipe 3 days Thu Sat Remove Clamp, Thruster & Control Container 2 days Mon Tue Remove Foundation base 2 days Wed Thu Remove Launch Seal & Sheet Piling 2 days Fri Sat Pack & remove remaining equipment 5 days Fri Wed Clean Mud System & remove 4 days Wed Sat IPC Move out 0 days Wed Wed Push pipe extra 10m and Inspect Remove Pipe/Cable from inside Product Pipe Clean Mud System & remove Remove Clamp, Thruster & Control Container Remove Foundation base Remove Launch Seal & Sheet Piling Pack & remove remaining equipment IPC Move out Project: TCPL_McLeod - Prelimi Date: Mon Task Split Milestone Summary Project Summary Inactive Task Inactive Milestone Inactive Summary Manual Task Duration-only Manual Summary Rollup Manual Summary Start-only Finish-only External Tasks External Milestone Deadline Progress Manual Progress TCPL_McLeod _Preliminary Schedule_07Nov16_Rev8 Page 1 Mon Novembre 22, 2016 Page 28 of 128

29 APPENDIX 3 SITE LAYOUT Novembre 22, 2016 Page 29 of 128

30 CAT 587R CAT 587R CAT 587R CAT 587R CAT 587R CAT 587R CAT 587R CAT 587R CAT 587R CAT 587R SEE DETAILED VIEW A SEE DETAILED VIEW B SEE DETAILED VIEW C PLAN SCALE 1:750 CONTROL CONTAINER BLACK TRAILER GENERATOR SIDEBOOM ROLLER CAT 587R SIDEBOOM PRODUCT PIPE CAT 587R CAT 587R CAT 587R CAT 587R SIDEBOOM CAT 587R CAT 587R SITE OFFICE WASH ROOM 2 x 20FT SEA CAN WHITE TRAILER CREW CHANGE ROOM MATS PRODUCT PIPE SETUP/WELDING PIPE INTERNALS BASKET(S) ENTRY POINT MATS DRILLING FLUID EQUIPMENT MATS TEMPORARY WORKSPACE DETAILED VIEW A SCALE NTS DETAILED VIEW B SCALE NTS DETAILED VIEW C SCALE NTS REFERENCE FILES TRANSCANADA DRAWING: ML REV 1 1 ISSUED FOR RFP GEOTECHNICAL REPORT: NO. REVISION NOTES 17/11/2016 EJS DATE BY DAL CHK. NOTES: 1. ISSUED FOR RFP ONLY. NOT FOR CONSTRUCTION 2. MATS TYPICAL SIZING 14FT x 8FT, ESTIMATED 85 MATS TOTAL THIS DRAWING IS THE PROPERTY OF INNOVATIVE PIPELINE CROSSINGS AND SHALL NOT BE REPRODUCED IN WHOLE OR IN PART WITHOUT PRIOR WRITTEN CONSENT OF INNOVATIVE PIPELINE CROSSINGS. TRANSCANADA PIPELINE HIGHWAY 16 SW & NW DIRECT PIPE SITE LAYOUT GRANDE PRAIRIE MAINLINE LOOP NO.2 NPS 48 MCLEOD RIVER SECTION (2016) EDG DRAWING NUMBER 1.09 REV. Novembre 22, 2016 Page 30 of 128

31 APPENDIX 4 EQUIPMENT Novembre 22, 2016 Page 31 of 128

32 List%of%Equipment IPC$Major$Components Pos. Name Type Technical%Description Remark 1 MTBM*48" AVN1000X*=*Direct*Pipe*with*Power*Pack OD1325mm*/*Mixed*Face*Cutter*Head 2 Control*Container C30 20"*Control*Container 3 Pipe*Thruster PT500 Push*and*Pull*force*500ton 4 Slurry*Pumps Different KB100*/*KSB125*/*Warmann*6/6*/*150PFPCH Different*configurations*on*different*drives 5 Slurry*Pipes 5" Pipes*&*Clamps 6 Bentonite*Line 2" 7 Internal*Cables Different*Sizes All*connection*cables*to*run*the*equipment 8 Launch*seal 48" Suitable*the*size*of*the*pipe*/*lubrication*entry 9 Support*Structures 48" Support*for*all*internals*inside*the*Product*Pipe 10 Mud*Plant TBD 35*sq.ft*pretensioned*acreening*area 11 Centrifuge TBD Solids*control*system*for*dealing*with*ultrafine*material 12 Premix*Tank 60m3 8m3*recovered*drilling*fluid*from*the*centrifuge 13 Generator 20'*Trailer*Diesel TBD File: TCPL*List*Equip*25Oct16*Rev*1.xlsx Date: 16=11=21 Novembre 22, 2016 Page 32 of 128

33 SPECIAL FEATURES Designed for soft ground, mixed ground and hard rock conditions by use of different cutting wheels (full face excavation). Most efficient use for short drives. Highly reliable steering operation due to inductive measuring system. Different (variable) flushing modes/jet systems to suit different ground conditions. High/medium pressure water system for operation in cohesive soil. Providing highly effective cone crusher. Equipped with heavy duty long-life main bearing and high torque central drive. Hydraulic power pack in control container, usable for a certain range of diameters. Completely remote-controlled. All machines compatible to U.N.S. Guidance System. TECHNICAL DATA AVN800XC AVN800XC AVN1000XC S Std Std 1. Articulated Shield Outer diameter mm 975 1, 1,295 Pipe OD mm 960 1,090 1,280 Pipe ID mm ,000 Main drive Max. torque knm Revolution LH / RH rpm Rated power kw Roll correction Steering Steering cylinders Force per cyl. / oil pressure kn / bar 393 / / / 500 Stroke per cyl. mm Control Computer data logging system Fuzzy control (automatic steering) opt. opt. opt. Fully visualized process control Active roll protection (el.-hydr.) Suitability U.N.S.: ELS ELS-HWL GNS 2. Machine Can Lubrication System 3. General Information Pipe Jacking Drive length (recommended) m Access to cutting wheel Waterproofness bar Slurry line diam. mm High pressure water system Medium pressure jet system All measures and data represent the main feasibility of the machines. Individual solutions are possible. Errors excepted. *Std = standard Novembre 22, 2016 Page 33 of 128

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35 Novembre 22, 2016 Page 35 of 128

36 HERRENKNECHT AG UTILITY TUNNELLING CONTROL CONTAINERS CONTROL CONTAINER AVN250XC AVND3000AB SPECIAL FEATURES Control Container with individual compartments separating hydraulics from electrics while operator and controls are protected in its own space. Three different sizes covering the entire range of AVN Microtunnelling machines from AVN250 to AVN3000 and larger. Common controls layout and sets of matching functions and operational features. U.N.S. Guidance System providing a uniform platform for all aspects of tunnel navigation. MDT offering global remote access and troubleshooting for the customer and Herrenknecht service and support. DAE provides a single and simplified data analysis solution for interpretation of the drive records. PBA Data Communication Protocol. Optional 37-pin communication available for downward compatibility and legacy systems. Optional climate packages (for extreme environments). C20 C30 C Technical Data Hydraulic Oil Tank ltr 1,000 1,500 2,300 Jacking Pump kw Flow Rate ltr / min Number of Interjacking Ports Cutting Wheel Pump opt. opt. Rated Power kw Flow Rate ltr / min Frequency Converters for Feed & Slurry Discharge Size (feed/ discharge) kw / / / Long Distance Pipe Jacking Automatic Bentonite Lubrication System opt. opt. opt. 950V Transformers opt. 2 opt. opt. Cutting Wheel Main Drive kva Slurry Discharge Pumps (machine/ tunnel) kva - / / / Controls & Features Fully Visualized Process Control & Data Logging Monitor for CCD Camera opt. Fuzzy Control (automatic steering) opt. opt. opt. Suitability U.N.S.: ELS ELS HWL opt. opt. opt. GNS (Gyro) opt. opt. opt. 4. Dimensions (L x B x H) 3 mm 4,600 x 2,450 x 2,800 5,600 x 2,450 x 2,800 6,100 x 2,450 x 2,800 Approx. Weight kg 9,500 11,500 15,500 1 suitable for Direct Pipe (depending on configuration) 2 Connection for external transformer only 3 Shipping dimensions for informational purposes Images and graphics may depict optional items. All rights reserved. Any information contained herein is for informational purposes only. Subject to change without notice. We are not responsible for typographical errors. All dimensions and data refer to customizable basic product features. Novembre 22, 2016 Page 36 of 128

37 HERRENKNECHT AG UTILITY TUNNELLING CONTROL CONTAINERS FEATURES Operator Controls. All containers are equipped with two touch screen monitors visualizing navigational information and machine status & functions independently. A third monitor (optional) provides video surveillance of the microtunneling machine underground and/or specific areas of the jobsite. Controls & Communications. Slurry Pump Connections. Safety. Hydraulics, electrics and electronics are separated physically from each other providing an utmost level of system integrity in a highly integrated package. Ports & Connections. All hydraulic ports and electric connections are located in the rear of the container. All gaps and openings are closed to keep unwanted visitors out. OPERATING RANGE General operating range of Control Containers (depending on configuration) for customized solutions, please contact your nearest representative. C20 C30 C40 1 AVN Machines C-Type AVN250X AVN1600T AVN1200T AVN2000A AVN1500X AVN2000A B-Type 2 up to AVN1600T / AVN1800A (AVN2000A 3 ) up to AVN3000A D-Type up to AVND1800A (AVND2000A 3 ) up to AVND3000A 1 suitable for Direct Pipe (depending on configuration) 2 with external transformer: C-type machines with power pack in trailing can 3 depending on configuration All rights reserved. Any information contained herein is for informational purposes only. Subject to change without notice. We are not responsible for typographical errors. All dimensions and data refer to customizable basic product features HK1708 Herrenknecht AG D Schwanau Phone +49 (7824) Fax +49 (7824) utility@herrenknecht.com Building the future together. Herrenknecht AG is a technology and market leader in mechanized tunnelling. Herrenknecht is the only company in the world to supply hightech tunnelling machinery for all ground conditions and in all diameters. Novembre 22, 2016 Page 37 of 128

38 HERRENKNECHT AG UTILITY TUNNELLING TRAFFIC TUNNELLING D IRECT PI P E HERRENKNECHT DIRECT PIPE : ONE-PASS TRENCHLESS INSTALLATION OF PIPELINES IN ALL GEOLOGIES. Sophisticated interaction between the Herrenknecht Pipe Thruster and Microtunnelling equipment. One-pass work phase of operation for soil excavation and pipeline installation. The Herrenknecht Pipe Thruster pushes the Direct Pipe machine and the pipeline forward underground. Permanent borehole support by the Direct Pipe machine and the pipeline. Inclines and gradients as well as curved drilling profiles can be negotiated precisely. Novembre 22, 2016 Page 38 of 128

39 Equipment set-up at the launch pit: Pipe Thruster, Direct Pipe machine, outlaid pipeline and control container. REACHING THE TARGET IN ONE STEP. REQ UIREMENT PIPELINE CONSTRUCTION Elimination of pipe and drill-rod coupling times. Installation of pre-welded and tested pipelines or pipeline sections. Space-saving: equipment and pipeline are only required on one side of the crossing. Rapid installation of product pipes and pipelines without deep launch and target pits. Suitable for use in densely-populated urban areas. Selection of the optimum construction method is based on time and cost parameters as well as geological ground conditions. Key specifications include appropriate construction site installation and the ability to drill through soil formations where HDD is not applicable or too risky. Crossing sensitive areas safely above ground is a matter of course for us. Underground, Direct Pipe opens up new application potentials by combining the advantages of Microtunnelling and Pipe Thruster technology. A prefabricated pipeline is installed almost continuously in one step, concurrently with the excavation. A cutterhead adjusted to the geology requirements and a cone crusher remove possible obstacles. FAST AND EFFICIENT PIPELINE INSTALLATION. SOLUTION DIRECT PIPE Pioneering technology: One-pass work phase of operation for tunnelling and pipeline installation. HERRENKNECHT PIPE THRUSTER: HK300PT: Pipeline diameter: up to 36 Max. thrust and pull force: 300 t (3,000 kn) HK500PT: Pipeline diameter: up to 48 Max. thrust and pull force: 500 t (5,000 kn) HK750PT: Pipeline diameter: up to 60 Max. thrust and pull force: 750 t (7,500 kn) In a similar way to the pipe jacking process, Herrenknecht Direct Pipe machines excavate the borehole. The excavated material is transported via a slurry circuit which runs in the laid pipeline to the separation plant above ground. The Pipe Thruster takes over the function of the main jacking station and pushes the pipeline with the coupled Direct Pipe machine forward. The required force is transmitted via two hydraulic Pipe Thruster cylinders over the entire length of the pipeline to the cutterhead. Protection for the pipeline coating. Herrenknecht and independent partners have successfully tested various pipeline coating materials and proved that the clamping unit does not damage the coating. The coated pipeline only comes into contact with the inner surface of the clamping inserts of the Pipe Thruster which is large enough to keep the load along the coating at a tolerable margin. The clamping inserts are lined with a special rubber which compensates for unevenness on the pipe and its coating. The German Federal Ministry of Education, Science, Research and Technology promoted the development of the method and implementation of the pilot project in Worms, Germany. SPONSORED BY THE: TOP 5 nominee for the Hermes Award 2008 Winner of the IPLOCA New Technologies Award 2009 Novembre 22, 2016 Page 39 of 128

40 PIP ELINE DIAMETER R A N G E * Pipeline diameter (outer Ø) ( mm) ( mm) (966-1,067 mm) (1,118-1,321 mm) (1,372-1,524 mm) Direct Pipe Machine AVN600XC / AVN800XC (B) AVN800XB (A) AVN1000XB AVN1200TB AVN700XC Torque of machine 33 / 40 knm 55 knm 90 knm 150 knm 258 knm Excavation diameter of machine 805 / 890 mm 990 mm 1,140 mm 1,325 mm 1,540 mm Maximum pipeline / drilling length 300 m 300 m 800 m 1,400 m 1,500 m Minimum overburden Maximum water pressure Geology Pipe material Coating material 2-3 x outer diameter of Direct Pipe Machine 3 bar = Standard; 3-4 bar = Modified standard; 4 bar = Special design Clay, silt, sand, gravel, cobbles, boulders, rock (up to 150 MPa = psi) Steel e.g. PE, PP, GRP**, FBE***, Concrete * ** *** Values noted are typical and can vary from project to project. Glass Fiber Reinforced Plastic Fusion Bonded Epoxy Do not hesitate to contact us directly for your special requirements or request our Direct Pipe animation on CD-ROM. directpipe@herrenknecht.com Novembre 22, 2016 Page 40 of 128

41 Left: Control cabin next to the launch pit remote-controlled installation of the pipeline. Right: Breakthrough at the target side: the machine can be dismantled the pipeline is installed. One-pass work phase of operation for tunnelling and pipeline installation. ➊ Using the Direct Pipe method, the drilling route is typically an arc from the surface of the terrain, underneath the obstacle to be drilled under, to the opposite terrain surface, like in HDD. Compared with the jacking frame generally used for pipe jacking, the Herrenknecht Pipe Thruster ➌ acts like a jacking unit. The required bore hole is excavated by the slurry-supported Direct Pipe machine, which is based on a Herrenknecht micromachine (AVN). This machine is deployed at the front end of the pipeline. Afterwards, the one-pass excavation and pipeline installation starts. The Pipe Thruster grips the outlaid pipeline and pushes it together with the TBM into the ground. The excavated material is removed via the slurry circuit (bentonite suspension) of the Direct Pipe machine to the separation plant on the surface. The slurry fluid thus not only discharges the excavated material but also supports the tunnel face. The overcut created by the cutterhead is filled with high-viscosity lubricant (bentonite suspension). This reduces the friction between the bore hole wall and the laid pipe. With the support of a Herrenknecht Navigation System (U.N.S.), accurate curved drilling profiles are possible using a gyro-compass for the horizontal orientation and a hydraulic water leveling system for the vertical orientation. Launch pit with construction site equipment. ➋ The Pipe Thruster is placed in a shallow launch pit with near to the surface. The horizontal and vertical push forces are transferred into the soil by a suitable anchorage, e.g. with the aid of sheet piles. The control container is placed beside the launch pit. The benefit of the Direct Pipe method is the simplicity of the required launch and target pits. Small target pit for recovery of the machine. ➍ There are very low space requirements for the target pit thus projects can be realized even in densely populated urban areas. When the Direct Pipe machine has reached its target, the entire pipeline has been installed. The machine can now be recovered from a simple target pit in partial sections of approx. 3 meters. In a final working step, the feed and slurry lines inside the pipeline are dismantled and the pipeline is ready for connection with the rest of the pipeline grid. Novembre 22, 2016 Page 41 of 128

42 Left: The Pipe Thruster clamps the pipeline and pushes it through the launch seal. Right: Redoubling the push and pull force - two Pipe Thrusters in series for longer crossings. Novembre 22, 2016 Page 42 of 128

43 Herrenknecht is the technology and market leader in the field of mechanized tunnelling. Herrenknecht is the only company worldwide to deliver high-tech tunnel boring machines for all ground conditions and all diameters ranging from 0.10 to 19 meters. Herrenknecht also develops solutions for vertical and inclined shafts. Around the globe our tailor-made machines create tunnel systems for water and wastewater, gas, oil, electricity and telephone cables (Utility Tunnelling), as well as high-performance infrastructure systems for road, metro and railway traffic (Traffic Tunnelling). Herrenknecht tunnel boring machines successfully achieved final breakthrough beneath the Gotthard mountain range (Switzerland), after excavating more than 85 kilometers of the world s longest railway tunnel. They are forging ahead with large diameter road tunnels and the largest metro lines. Our machines help to cross under water with supreme accuracy and to lay pipelines throughout continents. The Herrenknecht Group employs around 5,000 people worldwide. With 78 domestic and overseas subsidiaries and associated companies working in related, fields the group profits from a team of innovative specialists, providing integrated solutions with project-specific equipment and service packages dedicated to the project and the customer. Herrenknecht AG D Schwanau Phone Fax directpipe@herrenknecht.de HK1882 Novembre 22, 2016 Page 43 of 128

44 !!!!!!!!!INNOVATIVE PIPELINE CROSSINGS INC.! General Internal Assembly Orientation Lines!inside!the!Pipe:! Slurry!feed!and!return!lines! Bentonite!line! Air!hose! Water!level! Data!cable! Power!cables! 3 rd!party!safety!lines! Novembre 22, 2016 Page 44 of 128

45 APPENDIX 5 AUXILIARY EQUIPMENT Novembre 22, 2016 Page 45 of 128

46 List%of%Equipment Auxiliary)Equipment Pos. Name Type Technical%Description Remark 1 Boiler 50hp*<*80hp For*Winter*use 2 Portable*Heaters Herman*Nelson*(Or*similar) For*Winter*use 3 Light*Tower Magnum*MLT*3060*(Or*similar) 30'*extended*440,000*Lumens 4 Fuel*Tank Transcube*50*TCG*(Or*similar) Double*wall*steel*1240*capacity*(gallons) 5 Air*Compressor Doosan*C185*(Or*similar) Rated*Pressure*100psi 6 Trash*Pump Wacker*PT13*(Or*similar) 4"*Capacity*42,300*gph,*power*16hp Only*for*contingency*purpose 7 Elec.*Submersible*pump Wacker*(Or*similar) 2"*Capacity*4920*gph,*power*1/2hp Only*for*contingency*purpose 8 Welding*Unit Blue*Star*185*(Or*similar) Rated*Output*CC/DC*185A,*25V*Generator,*P<watt Crane 120*Ton*Typical*(Or*similar) Lift*Thruster*Clamp If*required*for*lifting*clamp*and*thruster File: TCPL*List*Equip*21Nov16*Rev*2.xlsx Date: 16<11<21 Novembre 22, 2016 Page 46 of 128

47 Novembre 22, 2016 Page 47 of 128

48 APPENDIX 6 STEERING AND GUIDANCE EQUIPMENT Novembre 22, 2016 Page 48 of 128

49 Operating Manual UNS Universal Navigation System ELS / HWL / GNS Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 Version:0 Novembre 22, 2016 Page 49 of 128

50 Novembre 22, 2016 Page 50 of 128

51 Table of contents Table of contents 1 Introduction General Purpose of this Manual Special Warnings Modifications Manufacturer Technical Data ELS Target Length Encoder Hose Water Level Height Sensor and Reference Sensor of the HWL Compensation Tank of the HWL Gyro Compass Northstar Gyro Compass MWD Product Description UNS System Software ELS Structure and Functional Description ELS Target Length Encoder UNS Cable Set HWL Purpose Structure and Functional Description Height Sensor and Reference Sensor of the HWL Compensation Tank of the HWL Measuring Liquid Hose Water Level UNS Cable Set HWL Connection Hoses Pump for Filling the Hose Lines GNS Purpose Structure and Functional Description Gyro Compass Northstar UNS Cable Set Gyro Compass Herrenknecht AG, Schlehenweg 2 Edition: April Schwanau 2, Tel / 3020 I Version: 0 Novembre 22, 2016 Page 51 of 128

52 Table of contents MWD (Measuring While Drilling) UNS Cable Set Assembly and Installation ELS Installation of the Electronic Laser Target Installation of the Length Encoder in the Start Pitch Cable Connections HWL Installation of the Compensation Tank's Reference Sensor in the Start Shaft Installation of the Height Sensor in the Machine Pipe Connection of System Components with Cables and Hoses Cable Connections Hose Connections Filling of the Hose Water Level Pipe Replacement Measures Hose Drum Replacement GNS Installation of the Gyro Compass Basic Functions of the Measuring Visualisation Operation Description "Advance Mask Measuring" Advance Mask Measuring ELS Advance Mask Measuring HWL Advance Mask Measuring GNS Symbol Explanation Advance Mask Measuring (ELS, HWL, GNS) Angle Designations Description "Main Menu" Description "menu" Description "User Change" (Log-In) Description "HK Printer" for Protocol Evaluation Description of the "Screen Keyboard" Mask "Steering Cylinder Parameters" Opening Mask "Steering Cylinder Parameters" Description of the "Steering Cylinder Parameters" Settings in the Mask "Steering Cylinders" Mask "HK-Copy" Storage of Advance Data Opening Mask "HK-Copy" Description of the "HK-Copy" Mask UNS-ELS Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I Schwanau 2, Tel / 3020 Version: 0 Novembre 22, 2016 Page 52 of 128

53 Table of contents 6.1 Procedure for Creating a New Construction Site Mask "System Parameters" Opening the Mask "System Parameters" Description of the Mask "System Parameters" Setting of "System Parameters" Mask "Laser Target Parameters" Opening the Mask "Laser Target Parameters" Description of the Mask "Laser Target Parameters" Setting of "Laser Target Parameters" Mask "Parameter Correction" (Entry and Correction of Fault Values) Opening the Mask "Parameter Correction" Description of the Mask "Correction Parameters" Setting of "Laser Target Parameters" Mask "Target Info" Opening the Mask "Target Info" Description of the Mask "Target Info" UNS-HWL Procedure for Creating a New Construction Site Mask "System Parameters" Opening the Mask "System Parameters" Description of the Mask "System Parameters" Setting of "System Parameters" Mask "UNS-Editor" Tab "General Settings" Opening the Mask "UNS-Editor" Description of the Mask "UNS-Editor" Tab "General Settings" Mask "UNS Editor" Tab "HWL" Description of the Mask "UNS-Editor" Tab "HWL" Making Settings in "UNS-Editor" Tab "HWL" UNS-GNS Procedure for Creating a New Construction Site Mask "System Parameters" Opening the Mask "System Parameters" Description of the Mask "System Parameters" Setting of "System Parameters" Mask "UNS-Editor" Tab "General Settings" Opening the Mask "UNS-Editor" Description of the Mask "UNS-Editor" Tab "General Settings" Mask "UNS Editor" Tab "GNS" Description of the Mask "UNS-Editor" Tab "HWL" Herrenknecht AG, Schlehenweg 2 Edition: April Schwanau 2, Tel / 3020 I Version: 0 Novembre 22, 2016 Page 53 of 128

54 Table of contents Setting of "UNS-Editor" Tab "GNS" (New Advance) Mask "Trajectory" Opening the Mask "Trajectory" Description of the Mask "Trajectory" Creation of a New Segment Mask "Start Values" Opening the Mask "Start Values" Description of the Mask "Start Values" Determination of the Actual Start Values of the Machine Mask "Correction" Opening the Mask "Correction" Description of the Mask "Correction" Settings in the Mask "Correction" Fault Effects Correct Initial Measurement of the Initial Adjustment TBM Drift Faulty Advance Length (Operation without Length Encoder) Mask Last measuring Opening the Mask Last measuring Maintenance Works, Storage and Transport General ELS Checks with Every Measurement Daily Maintenance Works Maintenance Works after Every Advance Cycle Storage Transport HWL / GNS General Checks with Every Measurement Daily Maintenance Works Maintenance Works after Every Advance Cycle Error Messages Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I Schwanau 2, Tel / 3020 Version: 0 Novembre 22, 2016 Page 54 of 128

55 Introduction 1 Introduction 1.1 General Forwarding as well as reproduction of this document as well as utilisation and disclosure of its contents are only permitted with the express approval of Herrenknecht AG Schwanau. Non-compliance with this provision is subject to damages. Depending on the system configuration, deviations from the system configuration described in this manual are possible. 1.2 Purpose of this Manual This manual contains information for the general operation of the UNS measuring system (Universal Navigation System) and an accurate description of the basic operation, handling and configuration of the: ELS mode (electronic laser system). ELS-HWL mode (electronic water level) GNS mode (navigation with the gyro compass) Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 55 of 128

56 Introduction 1.3 Special Warnings In this manual, the special warnings: Danger and Caution NOTE have the following meaning: Danger This header is used when only partial compliance or non-compliance with instructions or procedures may result in injuries or fatal accidents. Caution This header is used when only partial compliance or non-compliance with instructions or procedures may result in machine damage or major malfunctions. NOTE This header is used when the reader's attention is to be called to particularities. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 56 of 128

57 Introduction 1.4 Modifications The contents of this manual may be subject to modifications without prior notification. Herrenknecht AG cannot be held liable for technical or typographical faults and defects in this manual. Furthermore, Herrenknecht AG does not accept liability for damage resulting directly or indirectly from the delivery, performance or use of this material. This manual contains information protected by copyright. All rights are reserved. This manual must not be copied in whole or in part or reproduced in any other form without the prior approval of Herrenknecht AG Herrenknecht AG All rights reserved. Printed in the Federal Republic of Germany User manual First edition (January 2007) Herrenknecht AG 1.5 Manufacturer Manufactured by: Herrenknecht AG Schlehenweg 2 D Schwanau Phone Fax Internet: Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 57 of 128

58 Introduction Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 58 of 128

59 Technical Data 2 Technical Data 2.1 ELS Target Accuracy Accuracy of the ELS target deviation measurement: +/- 1 mm ELS target Pitch 1 mm/m Roll 1 mm/m Direction max. permissible range ± 105mm/m 1 mm/m Degree of protection in acc. with EN A2 1995: I Electromagnetic compatibility in acc. with the EMC directive 89/336/EEC EN 55011, EN pren pren IEC IEC Technical data Input voltage: 24 V DC ±6 V 20 W Operating temperature: -10 to +60 C Interfaces: TTY and Profibus- DP Degree of protection: IP68 Size: 330 x 165 x 110 mm (LxWxH) Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 59 of 128

60 Technical Data 2.2 Length Encoder Technical data: Power supply: VDC Operating temperature: -40 to +85 C Degree of protection: IP 67 Size: 350 x 160 x 150 mm (LxWxH) (incl. support) 2.3 Hose Water Level Accuracy Accuracy of the height indicator of the electronic hose water level: (depending on the measuring range of the pressure transmitter: 1 or 2 bar) Interface Electromagnetic compatibility in acc. with the EMC directive 89/336/EEC <20 mm EN 55011, EN pren pren IEC IEC CAN-BUS Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 60 of 128

61 Technical Data Height Sensor and Reference Sensor of the HWL Degree of protection: IP68 Input voltage: 24 V DC Operating temperature -10 to +50 C Dimensions (LxWxH) 362 x 160 x 93 mm Compensation Tank of the HWL Operating temperature -20 to +50 C Dimensions (LxWxH) 235 x 390 x 330 mm Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 61 of 128

62 Technical Data Gyro Compass Northstar 24 Accurary toward magnetic north, gyro compass: NORTHSTAR 24 +/- 2 mrad Pitch max. permissible range ± 90 1mm/m Roll max. permissible range ± 90 1mm/m Technical data Input voltage: Degree of protection: 24 V DC ±6 V, 60W IP68 Operating temperature: -10 to +60 C Interfaces TTY and Profibus- DP Dimensions (LxWxH) 480 x 210 x 220 mm Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 62 of 128

63 Technical Data Gyro Compass MWD Accuracy toward magnetic north, gyro compass: MWD +/- 3 mrad Pitch max. permissible range ± 90 1mm/m Roll max. permissible range ± 90 1mm/m Technical data Input voltage: Degree of protection: 24 V DC ±6 V, 60W IP68 Operating temperature: -10 to +60 C Interfaces TTY and CAN-BUS Dimensions (LxWxH) 480 x 210 x 220 mm Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 63 of 128

64 Technical Data Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 64 of 128

65 Product Description 3 Product Description UNS is a generic term referring to an integrated system solution of any possible navigation and control systems within a homogenous future-oriented product group. The current UNS version comprises the following components ELS Description ELS Electronic Laser System An advance laser, which is fixed-installed in the start shaft, targets at an electronic laser target, which is firmly installed in the machine. The results are transferred to an industrial PC and displayed on a screen. ELS-HWL GNS Description ELS-HWL Electronic Laser System - Hydrostatic Water Levelling An advance laser, which is fixed-installed in the start shaft, targets at an electronic target, which is firmly installed in the machine. An additionally integrated electronic hose water level permanently delivers height values via a reference sensor installed in the start shaft and a height sensor installed in the tunnel boring machine. These results are temperature-dependent and are not subject to laser refraction. The results are transferred to an industrial PC and displayed on the screen. Description GNS Gyro Navigation System The north-seeking gyro compass, which is firmly installed in the tunnel boring machine, determines the north direction related to the machine axis. On the basis of dead reckoning, the current machine position is calculated. An electronic hose water level, which is integrated in the system, permanently delivers height values via a reference sensor installed in the start shaft and a height sensor installed in the tunnel boring machine. These height results are temperature-dependent and are not subject to laser refraction. The results are transferred to an industrial PC and displayed on the screen. The operating mode can be selected when the system is set up at the construction site. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 65 of 128

66 Product Description A change-over between the ELS and ELS-HWL operating modes is also possible during advance operation. To change from ELS or ELS-HWL to GNS, a set-up measurement must be performed. For a better understanding, the operating modes are named as follows in the operating manual and in the UNS software: 1) ELS Laser 2) ELS-HWL Laser + HWL 3) GNS Gyro + HWL 3.1 UNS System Software The UNS system software controls the sequence of a measuring process and calculates the position of the tunnel boring machine on the basis of the measuring values determined by the sensors (gyro compass or ELS and HWL). The reference point for the position and height parameters is the geometrical centre of the machine pipe or the front edge of the laser target. If respectively set, the positions and deviations of further spots in the machine pipe, e.g. shield articulation and cutterhead tip, are calculated and displayed as well. Additionally, diverse other values such as pressures, lengths of expander stations and strokes of the steering cylinders are obtained from the PLC, stored and partially displayed on the screen. The UNS software is installed by the factory and comes with a software and hardware key for copy protection. 3.2 ELS Structure and Functional Description Depending on the configuration, UNS consists of the following components: Laser target ELS Control PC with system software Cable set Length encoder (measuring wheel) Laser The following illustration shows the schematic structure of the UNS. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 66 of 128

67 Product Description Hardware overview UNS Integral 1 PC 2 Meas.screen 3 Visu screen 4 ELS target 5 UV (sub-distribution) 6 Data cable tunnel 7 Length encoder UNS 8 Shaft cable UNS Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 67 of 128

68 Product Description ELS Target If a laser target is connected, the laser target is the central UNS module. Here, the position and height deviations, the inclination, the pitch, the roll and the direction are permanently determined. The laser target detects the position of a red laser beam on its detector surface related to the centre and is therefore able to identify even minimal position deviations. In addition to the position data, all direction angles are determined with an accuracy of 1 mm/m. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 68 of 128

69 Product Description Length Encoder The length encoder - in the form of a measuring wheel - is positioned on the pipe in the start shaft and determines the current length of the already injected pipe UNS Cable Set The cable set included in the scope of supply serves the interconnection of individual system components. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 69 of 128

70 Product Description 3.3 HWL Purpose Hydrostatic water level, hereinafter referred to as HWL or hose level, is used as ELS upgrade or as main module for the height determination in the GNS mode. HWL allows for a permanent determination of the height by means of a reference sensor in the shaft and a height sensor in the machine Structure and Functional Description Depending on the configuration, a UNS with HWL consists of the following components: GNS or ELS Control PC with system software Cable set Length encoder (measuring wheel) Reference sensor of the HWL Height sensor of the HWL Reference tank Hose drums (50 m) with connectors for HWL The following illustration shows the schematic structure of the UNS with HWL Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 70 of 128

71 Product Description Hardware overview UNS Integral 1 PC 2 Screen measuring 3 Screen visualisation 4 ELS or gyro compass 5 UV (sub-distribution) 6 Data cable tunnel 7 Length encoder UNS 8 Shaft cable UNS L=40m rotary encoder / reference sensor 9 Compensation tank 10 Quick-action locking system 11 Shaft cable UNS L=10m rotary encoder / reference sensor 12 Reference sensor 13 Hose drum 50m 14 Height sensor Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 71 of 128

72 Product Description Height Sensor and Reference Sensor of the HWL The height and the reference sensor feature an identical design. The HWL sensors basically consist of a pressure sensor and the corresponding measuring electronics. The sensors have a port for the hose of the measuring medium and ventilation slots for the infeed of the atmospheric external pressure, which is also suitable for compressed air advance operation. Via a data cable, the sensors are connected to the CAN bus. The height sensor is fixed in the machine pipe in the roof. Height changes as a result of the roll are compensated by the UNS software. The reference sensor is fixed in the start pit. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 72 of 128

73 Product Description Compensation Tank of the HWL The compensation tank is fixed in the start pit. The connection hose for the connection of the height and reference sensor is routed out of the compensation tank Measuring Liquid Hose Water Level Substance designation: GS AW 01 Substance class: Chemical characterisation: aqueous solution aqueous ethanol solution Contains: Substance: Ethanol, CAS no.: , weight %:<22 Flame (F) Hazard symbol: Risk phrases: 11 Classification in accordance with the 18th adaptation of the RL 67/548 EEC and the GefStoffV (German ordinance on hazardous substances), last modified by 4th amendment ordinance dated Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 73 of 128

74 Product Description Possible dangers:: Suitable fire extinguishing agents: R10 inflammable, contains Ethanol denatured. At higher temperatures, explosive steam-air mixtures may form when R10 is used. Water Handling: Do not heat to over 35 C as explosive steams may form. Storage: cool and dry in original tank Exposition limit: MAK value: 1000 ml/m³ (Ethanol) Physical data and safety information: Form: liquid Colour: green Odour: alcoholic Boiling point: approx. 85 C Solidifying point: -8 C Flash point: 35 C Ignition temperature: 425 C (Ethanol) Explosion limit: ph value: Toxicology: Oral toxicity: lower 3.5 Vol-% (Ethanol) upper 15.0 Vol-% (Ethanol) neutral Ethanol is a neurotoxin and a cytotoxin. After having swallowed ethanol, plenty of water should be drunk. The product must not be left within reach of children. Make sure that ethanol does not enter the groundwater in large volumes UNS Cable Set The cable set included in the scope of supply serves the interconnection of individual system components. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 74 of 128

75 Product Description HWL Connection Hoses The connection hoses of the hose water level are supplied on hose drums (50 m), including connectors. The hose lines between the reference module and the height sensor are separated by means of a leakage-proof quick-release coupling below the compensation tank. Further hose drums are connected by means of Y-shaped connectors, which allow for a ventilation of the transition after the connection has been completed Pump for Filling the Hose Lines For filling the hose lines and the compensation tank of the hose water level, a pump is provided. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 75 of 128

76 Product Description 3.4 GNS Purpose GNS (Gyro Navigation System) is provided for non-linear advance operation with any radius. The horizontal deviation of the machine is calculated by means of a gyro compass in accordance with the dead reckoning principle. The HWL system permanently outputs the height Structure and Functional Description Depending on the configuration, a UNS in the GNS mode consists of the following components: Gyro compass Control PC with system software Cable set Length encoder (measuring wheel) HWL The following illustration shows the schematic structure of the UNS. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 76 of 128

77 Product Description Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 77 of 128

78 Product Description Gyro Compass Northstar 24 The NORTHSTAR 24 gyro compass determines the north direction, pitch and roll of the machine. NOTE After start-up, the compass requires a period of approx. 5 minutes before a measurement can be performed. Caution During the measuring process, it is imperative to protect the NORTHSTAR 24 against impacts and shocks. Non-observance of this provision may result in damage and consequently in faulty measuring results. During measuring, the TBM must not be advanced UNS Cable Set The cable set included in the scope of supply serves the interconnection of individual system components. When using the NORTHSTAR24, the provided adapter cable has to be connected to the gyro (not shown). Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 78 of 128

79 Product Description Gyro Compass MWD (Measuring While Drilling) The MWD gyro compass permanently determines the north direction, pitch and roll of the machine. NOTE After start-up, the compass requires a period of approx minutes before the gyro compass is ready for operation. The MWD gyro compass has an integrated battery. This battery is able to bridge a pipe replacement time of up to 45 minutes. The MWD gyro compass has 3 operating modes: 1. Rough search - yaw angle invalid 2. Transient oscillation - yaw angle invalid 3. OK - yaw angle valid (ready for operation) UNS Cable Set The roll and pitch angles are valid in all 3 modes. The cable set included in the scope of supply serves the interconnection of individual system components. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 79 of 128

80 Product Description Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 80 of 128

81 Assembly and Installation 4 Assembly and Installation 4.1 ELS Installation of the Electronic Laser Target The laser target is pre-installed by the factory Installation of the Length Encoder in the Start Pitch The length encoder is fitted to the starting wall in the start shaft by means of the supplied holder. The wheel of the length encoder freely rests on the upper edge of the advance pipe. If advance pipes with lifting anchors are used on the upper pipe side, the measuring wheel has to be mounted slightly outside the pipe axis to ensure that it does not run through the recesses of the anchor mounts. An arrow on the length encoder points towards the sense of rotation. If possible, the length encoder should be protected against major contamination with a "roof" Cable Connections Cable from the length encoder to the control panel Cable from the sub-distribution in the machine pipe to the ELS 4.2 HWL Installation of the Compensation Tank's Reference Sensor in the Start Shaft The compensation tank is installed in the start shaft by means of, e.g., the fixing lugs on the housing and the threaded bolts welded to the sheet pile wall. The compensation tank has to be suspended at a height which ensures that its level is always higher than the height sensor in the tunnel boring machine throughout the advance operation. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 81 of 128

82 Assembly and Installation Furthermore, the maximum height difference between the reference sensor and the height sensor, which is determined by the selected height sensor, must not be exceeded throughout the advance operation. The maximum height difference is 10 m with a 1.0 bar sensor. The reference sensor must be installed in the start shaft. Ideally, the reference sensor is installed at the same height as the height sensor in the tunnel boring machine. The installation position of the reference sensor must not change throughout the advance operation. Caution The hose leading from the compensation tank towards the height sensor must be shortened in a way which ensures that the hydraulic coupling is freely hanging at the lower hose end and does not rest on the floor. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 82 of 128

83 Assembly and Installation This is important to allow air bubbles, which form during the coupling process with the hydraulic coupling, to soar into the supply tank of the reference module. Only the measuring liquid supplied by Herrenknecht should be used for filling. If other measuring liquids are used, resistance to frost cannot be guaranteed. Caution Moreover, Herrenknecht cannot guarantee that other measuring liquids (except for water) are compatible with the UNS components. Caution Before disassembling and transporting the compensation tank, the liquid must be completely drained. For this purpose, open the drain cock on the Y piece of the reference tank Installation of the Height Sensor in the Machine Pipe For the height sensor, a mounting plate has been pre-installed by the factory. The installation position of the height sensor must not change throughout the advance operation Connection of System Components with Cables and Hoses After installation of the individual UNS system components, they are interconnected by means of the supplied cables and hoses. The connections between cables (cable drums) or between cables and modules are established via polarised plugs. An improper connection of system components can therefore be excluded Cable Connections Connect the length encoder cable with the reference sensor (10m) From the reference sensor to the control panel (40m) Cable from the sub-distribution in the machine pipe to the height sensor Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 83 of 128

84 Assembly and Installation Hose Connections Hose from the compensation tank to the height sensor (split up to several 50 m hose drums). A short hose piece is connected with the hydraulic coupling on the hose drum in the pitch. Connect the second hose from the compensation tank to the reference sensor. The connection between individual hose pieces is established via Y cocks as follows: Hose from wound-off drum Air bleed cock Hose from the new drum Fig. 4.4: Y cock for connection of the hose drums Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 84 of 128

85 Assembly and Installation Filling of the Hose Water Level The hose drums should only be filled when laterally positioned. Use the pump to pump sufficient liquid through the hose drum during the filling process. Entrapped air can be released by slightly shaking the hose drum. After the filling process is completed, the hose ends have to be thoroughly closed by means of the Y cock or a blind plug. Prior to the installation of the height sensor in the tunnel boring machine, the reference sensor in the shaft and the hose drum connection, entrapped air in the above-mentioned sensors has to be completely removed. This can be achieved by slightly shaking the sensors Pipe Replacement Measures When replacing pipes, the following measures usually have to be implemented in the sequence described below: 1) Set the measuring function on the panel to "OFF" screen shows measuring. 2) Disconnect the cable and the hose in the pit. 3) Insert the cable end and the hose end with a part of the quick-release coupling in the pipe. 4) Install a new pipe. 5) Re-connect the cable and the hose. 6) After having connected the hose by means of the quick-release coupling, ensure that no air is entrapped in the area of the quickrelease valve. Residual air can escape to the reference module by slightly knocking, for example, with the helve of a screwdriver onto the hose. 7) Set the measuring function on the panel to "ON". Caution Non-compliance with the above-described sequence may cause system damage. Additionally, data may get lost if the computer is disconnected from the power supply during operation without having shut down the program properly. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 85 of 128

86 Assembly and Installation Caution The piece of the quick-release coupling which is inserted into the pipe during pipe replacement must be protected against major contamination. Deposits on the quick-release piece may result in leakiness. Always position the hose end from the pipe slightly elevated to ensure that air intruding during the coupling process cannot enter the hose system but is bled via the quick-release coupling in the compensation tank Hose Drum Replacement After an advance distance of approx. 50 m, a new hose drum must be connected. Also refer to the illustrated instruction in the enclosure. Caution This work should be carried out with utmost care as intruding air may result in grossly incorrect measuring results of the hose water level. The following sequence must be adhered to: 1) Disconnect the quick-release coupling. 2) Close the Y cock at the wound-off drum. 3) Remove the connection hose with the part of the hydraulic coupling from the drum. 4) Fix the hydraulic coupling to a new drum. 5) Remove the dummy plugs from the new drum and fix the hose end at the Y cock of the wound-off drum. 6) Re-connect the hydraulic coupling. 7) Re-open the Y cock between the drums. 8) Remove the air before and behind the Y cock via the air bleed cock. 9) After the bleeding process, all ball valve cocks must be secured with adhesive tape against accidental opening or closing. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 86 of 128

87 Assembly and Installation Caution The sequence of step 6 and 7 must be strictly followed. If step 7 is carried out before step 6, overpressure in the new drum may, under adverse conditions, damage the pressure sensor in the height sensor. NOTE The brass screw connections of the hose water level should be tightly fastened (approx knm). If the brass screw connection is fastened too firmly, the inside brass sleeve may be subject to deformation. The screw connection is then useless and must be immediately replaced by a new sleeve. L to reference module Quick-release coupling To machine Y piece Hose drum Close the ball valve on the Y piece Disconnect the quick-release coupling from the reference module Disconnect the quick-release coupling from the hose drum Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 87 of 128

88 Assembly and Installation Connect the quick-release coupling to the Y piece of the new hose drum Connect the quick-release coupling with the reference module, the ball valve to the hose drum still remains closed Connect the old and the new hose drum, all ball valves remain closed Position the Y piece between the two drums slightly elevated Open the ball valve between the new hose drum and the reference module. Knock on the Y piece and remove the residual air upwards into the reference module Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 88 of 128

89 Assembly and Installation Open the ball valve between the old and the new hose drum (while keeping up) and bleed via the outgoing ball valve Hose bleeding When air has entered the hose of the hose water level, the entrapped air has to be localised by means of a visual hose check and removed via the Y cocks. By means of this procedure, entrapped air can be reliably and permanently removed. NOTE The hose line should not be flushed by means of the pump. Flushing merely whirls up entrapped air and distributes it in the hose line instead of removing it. Faults, insufficient bleeding of the hose water level If the hose water level is insufficiently bled after two hose pieces are connected, the measuring results of the hose water level may be grossly incorrect. Countermeasure: Thorough bleeding of the hose water level after every coupling procedure and regular check of the hose pieces for entrapped air bubbles. The HWL inside the shaft must be protected against direct sunlight. 4.3 GNS Installation of the Gyro Compass A holder for the gyro compass is pre-installed by the factory. When using the Northstar 24 gyro compass, the supplied adapter cable must be connected to the gyro. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 89 of 128

90 Assembly and Installation Caution After gyro disassembly or replacement, a new set-up measurement has to be performed. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 90 of 128

91 Basic Functions of the Measuring Visualisation 5 Basic Functions of the Measuring Visualisation 5.1 Operation The UNS is operated by touching the symbols on the screen (touchscreen). NOTE Values can only be entered in the white fields. 5.2 Description "Advance Mask Measuring" Advance Mask Measuring ELS Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 91 of 128

92 Basic Functions of the Measuring Visualisation Advance Mask Measuring HWL Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 92 of 128

93 Basic Functions of the Measuring Visualisation Advance Mask Measuring GNS Symbol Explanation Advance Mask Measuring (ELS, HWL, GNS) Button / symbol Designation Advance speed Description / function Display of the current advance speed Advance length Distance since last measuring Steering cylinder parameters Computer shut-down Error message navigation system Display of the current advance length down to the cutterhead tip. When the symbol is selected, the mask "parameter correction" pops up, where the fault or correction values are set or modified. Display of the distance since the last gyro measuring Upon operation of this button, the mask "steering cylinder parameters" pops up. Upon selection of this symbol, the computer is shut down and switched off. Upon selection of this symbol, the current error messages are displayed. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 93 of 128

94 Basic Functions of the Measuring Visualisation Touch screen active Touchscreen inactive ELS mode activated ELS-HWL mode activated Switch-over between ELS and ELS-HWL GNS mode activated Call-up main menu Measuring cycle Touchscreen display is active. Upon selection of this symbol, the touchscreen changes from active to inactive. Touchscreen display is inactive. Upon selection of this symbol, the touchscreen changes from inactive to active. Display of the selected measuring system. Here ELS Display of the selected measuring system. Here ELS-HWL Switch-over of the vertical deviation display between hose water level and ELS (Vert, TVert). Displays the selected measuring system (GNS). As selector switch for switch-over of the measuring system between ELS and GNS. Upon selection of this symbol, the main menu is opened. Press the button, gyro measuring is released. Position of laser target Position TBM articulation Displays the current laser position Front edge laser target Displays the current TBM articulation position. Position cutterhead tip Displays the current cutterhead tip position. Manual entry steering stroke Error display Displays that the required data for the steering cylinders are not automatically read out and have to be manually entered. Displays available error messages Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 94 of 128

95 Basic Functions of the Measuring Visualisation Display machine position Displays the current TBM position. Vert: Hori: TVert: THori: Pitch Yaw Roll: Vertical deviation of the TBM Horizontal deviation of the TBM Vertical deviation cutting wheel Horizontal deviation cutting wheel Pitch angle of the TBM Yaw angle of the TBM Roll angle of the TBM Laser point on the laser target Ampli: Durch: Laser amplitude Laser beam diameter Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 95 of 128

96 Basic Functions of the Measuring Visualisation Angle Designations Direction of drive of the machine Yaw angle (+) of the machine Machine pitch DOD Project axis Horizontal line Pitch angle (+) of the machinepitch angle (-) of the machin Setpoint axis (tunnel axis) DOD Yaw angle (-) of the machine Machine roll Roll right Roll left Project axis Roll angle Fig..4 Machine set-up Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 96 of 128

97 Basic Functions of the Measuring Visualisation 5.3 Description "Main Menu" By operating the "main menu" button on the "advance mask measuring", the "main menu" is opened with the following functions: Button / symbol Exit Designation Description / function Upon operation of this button, the menu is closed. Measuring parameters Laser target parameters Steering cylinder parameters Protocol evaluation Save Keyboard Language selection UNS editor Groove measuring system (OPTIONAL) Upon operation of this button, the mask "measuring parameters" pops up. Upon operation of this button, the mask "laser target parameters" pops up. Upon operation of this button, the mask "steering cylinder parameters" pops up. Upon operation of this button, the mask "HK printer" is opened to print out the protocol. Upon operation of this button, the mask "HK copy" is opened. Protocol data can be directly stored on disk or a USB stick. Upon operation of this button, the screen keyboard is opened. Upon operation of this button, the language selection list is opened. Upon operation of this button, the mask "UNS editor" is opened Upon operation of this button, the mask "groove measuring system" is opened. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 97 of 128

98 Basic Functions of the Measuring Visualisation 5.4 Description "menu" The menu includes several masks. Amongst others, the following masks are available: Mask "system parameters" Mask "laser target parameters" Mask "correction parameters" The way to the individual masks is described in the respective sections. Button / symbol Designation Description / function Exit Edit mode Print User change Keyboard Laser target information System editor memory Operating editor memory UNS editor Upon operation of this button, the menu is closed. Edit mode Upon operation of this button, a screenshot is printed. Upon operation of this button, the mask "user change" pops up. Upon operation of this button, the screen keyboard is opened. Upon operation of this button, the mask "laser target information" pops up. Display storage procedure Display storage procedure Upon operation of this button, the mask "UNS editor" is opened Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 98 of 128

99 Basic Functions of the Measuring Visualisation 5.5 Description "User Change" (Log-In) Prior to starting a new advance cycle or if existing parameters have to be changed, the user has to log into the system to be able to change settings. 1.) Selection of the "main menu" 2.) Selection of "measuring parameters" 3.) Selection of "user" 4.) The mask "user change" is opened "Log-off After having entered all parameters, the user has to log off the system. An automatic log-off is executed after 30 min. "Setter" This button has to be selected to change parameters. "Commissioning" Only for Herrenknecht staff. 5.) Upon operation of the "setter" button, parameters can be changed. 6.) User name The "user name" is a default setting and has to be used. 7.) Password For "UNS Stand-Alone, no password is required. For "UNS-Integriert, the number of the container without letters has to be entered. e.g. M-1080C > in this case, "1080 must be entered as password. 8.) Confirm with "OK" Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 99 of 128

100 Basic Functions of the Measuring Visualisation 5.6 Description "HK Printer" for Protocol Evaluation To print out protocols, select "HK printer" in the main menu. The following mask pops up: Button / symbol Designation Construction site Description / function Enter the name of the construction site Comment Protocol Max. protocol Screen keyboard Comment entry Print PDF creation Preview Menu exit Upon selection, only the comment is printed or stored. Upon selection, the current measuring protocol is stored or printed. Upon selection, the measuring protocol for the last time-stroke interval is printed or stored. Upon operation of this button, the screen keyboard is opened. Opon operation of this button, a mask pops up to enter a comment. Opon operation of this button, the above-selected function (comment, protocol, max. protocol) is printed. Upon operation of this button, the above-selected function (comment, protocol, max. protocol) is saved as PDF. Upon operation of this button, the above-selected function (comment, protocol, max. protocol) is displayed in the preview. The preview can then be printed or stored as PDF. Upon operation of this button, the menu "HK printer" is closed. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 100 of 128

101 Basic Functions of the Measuring Visualisation 5.7 Description of the "Screen Keyboard" The screen keyboard is called up by operating the button. Button / symbol Designation Numeric pad Description / function Numeric pad with "plus and minus signs Exit Closing window Esc Exiting the screen keyboard function Edit Editing field (same function as "F9") Enter Confirming entry Back space Step-by-step deletion from the right to the left del Step-by-step deletion from the left to the right tab Jumping to the next entry field Point Entering point Cursor control button Moving cursor to the left Cursor control button Moving cursor to the right Screen keyboard change Changing keyboard to different screen Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 101 of 128

102 Basic Functions of the Measuring Visualisation Screen keyboard Calling up the screen keyboard 5.8 Mask "Steering Cylinder Parameters" Opening Mask "Steering Cylinder Parameters" 1.) Select the "advance mask measuring" 2.) Selection of the "main menu" 2.) Select the "steering cylinder parameters" Description of the "Steering Cylinder Parameters" Button / symbol Designation Calibration General parameters Stroke STC: Description / function Calibration of the steering cylinders Carried out by the factory. If the displayed values are incorrect, the cylinders have to be calibrated. Stroke of the steering cylinders 3 steering cylinders Selection with 3 steering cylinders 4 steering cylinders Selection with 4 steering cylinders Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 102 of 128

103 Basic Functions of the Measuring Visualisation Settings in the Mask "Steering Cylinders" 1.) Enter stroke of the steering cylinders "Stroke STC": 2.) Select the number of available steering cylinders in the tunnel boring machine. 3.) Exit menu. 5.9 Mask "HK-Copy" Storage of Advance Data Opening Mask "HK-Copy" 1.) Select the "advance mask measuring" 2.) Select the "main menu" symbol 2.) Select the "HK-Copy" symbol Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 103 of 128

104 Basic Functions of the Measuring Visualisation Description of the "HK-Copy" Mask Button / symbol Designation Description / function Save Saving the protocol data Adding a file for storage Upon operation of this button, another file can be added and stored Zip On Off Storage as compressed file (zip file) Storage without compressing Standard Extensive Storage of advance data Storage of advance data with additional troubleshooting data (e.g. log files) Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 104 of 128

105 UNS-ELS 6 UNS-ELS 6.1 Procedure for Creating a New Construction Site If a new advance cycle is started, the following sequence must be adhered to: 1.) Log-in to system (see section 5.5) 2.) Select measuring system ELS in the mask "system parameters" (refer to section 6.2 et sequ.) 3.) Check the values in the mask "laser target parameters" and, if required, correct them. Enter the desired laser gradient observing the signs (+/-) (refer to section 6.3 et sequ.) 4.) Enter fault values / correction values in the mask "correction parameters". (Refer to section 6.4 et sequ.) 6.2 Mask "System Parameters" Opening the Mask "System Parameters" 1.) "Advance mask measuring" 2.) Selection of the "main menu" 3.) Selection of "measuring parameters" Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 105 of 128

106 UNS-ELS Description of the Mask "System Parameters" Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 106 of 128

107 UNS-ELS Designation Description / function Measuring system ELS ELS-HWL GNS Electronic Laser System Electronic Laser System with Hydrostatic Water Level Giro Navigation System Options Error disconnection When this option is selected, the following error messages are bridged: - Laser at edge - Excessive temperature in laser target Data back-up Wheel Time Protocol interval Time interval Protocol after a defined distance. Protocol after a defined period of time. Value after which distance a protocol is created Value after which time a protocol is created GNS-Com COM 1 - COM 4 Available COM ports at the computer. The settings are made by the factory and may only be modified by Herrenknecht staff. Only for control purposes. ELS-COM COM 1 - COM 4 Available COM ports at the computer. The settings are made by the factory and may only be modified by Herrenknecht staff. Only for control purposes. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 107 of 128

108 UNS-ELS Setting of "System Parameters" 1.) Select the measuring system ELS 2.) Select data back-up "wheel" or "time" Enter the corresponding "protocol interval" or "time interval" as value in the white field. 3.) Select or deselect options 4.) Exit menu Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 108 of 128

109 UNS-ELS 6.3 Mask "Laser Target Parameters" Opening the Mask "Laser Target Parameters" 1.) "Advance mask measuring" 2.) Selection of the "main menu" 3.) Select the "laser target parameters" Description of the Mask "Laser Target Parameters" Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 109 of 128

110 UNS-ELS Designation Desired laser gradient: [H] Laser height via roll axis: [L] Distance target-cutterhead tip: [A] Steering head length: [B] Length machine can [TK] STC pitch circle diameter [N] Laser target next to roll axis: Description / function Project pitch or project gradient of the laser observing the signs (+/-). Clearance between the centre of the machine axis and the centre of the laser target. Clearance between the cutterhead tip and the front edge of the laser target. Clearance between the cutterhead tip and the steering groove (machine articulation) Clearance between the steering groove (machine articulation) and the tail skin. Pitch circle diameter of the steering cylinders Offset between the vertical centre axis of the machine and the centre of the laser target Setting of "Laser Target Parameters" 1.) Enter the desired laser gradient for the project observing the signs (+/-) 2.) Enter the clearance between the cutterhead tip and the upper edge of the laser target [L]. 3.) Enter the clearance between the cutterhead tip and the steering groove (machine articulation) [A]. 4.) Enter the clearance between the steering groove (machine articulation) and the tail skin [B]. 5.) Enter the clearance between the centre of the machine axis to the centre of the laser target [H]. 6.) Enter the pitch circle diameter of the steering cylinders [TK]. 7.) Enter the horizontal offset between the vertical centre axis of the machine and the centre of the laser target [N]. 8.) Exit menu. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 110 of 128

111 UNS-ELS 6.4 Mask "Parameter Correction" (Entry and Correction of Fault Values) Opening the Mask "Parameter Correction" 1.) "Advance mask measuring" 2.) Select the "advance length" Description of the Mask "Correction Parameters" Designation Correction of tunnel length: Description / function The tunnel length can be set to 0 when a new advance cycle is started or the advance length has to be corrected after a control measuring. The entered length refers down to the cutterhead tip. Error station: -- not required -- Error horizontal: Error vertical: Error pitch: Error roll: Error yaw angle: Correction horizontal deviation Correction vertical deviation Correction of the pitch Correction of the roll angle Correction of the yaw angle Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 111 of 128

112 UNS-ELS Setting of "Laser Target Parameters" 1.) Enter the fault or correction values. 2.) Exit menu NOTE If "correction tunnel length" is set to 0, the measuring protocol is deleted. This is necessary when a new advance cycle is started. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 112 of 128

113 UNS-ELS 6.5 Mask "Target Info" Opening the Mask "Target Info" 1.) "Advance mask measuring" 2.) Selection of the "main menu" 3.) Selection of "measuring parameters" 4.) Select "Target Info" Description of the Mask "Target Info" Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 113 of 128

114 UNS-ELS Designation Laser target: Unknown error Laser target: Data transmission Laser target: Transferred data Laser target: Electronics Laser target: Temperature Laser target: Emergency operation Laser target: No optoboard Contact Herrenknecht Description / function Cable connection between laser target and computer interrupted Check sum error during data transfer Contact Herrenknecht The laser target temperature is too low or too high The laser target was not parameterised and is in emergency operation without parameters Hardware fault, contact Herrenknecht Laser target: Shadow block Hardware fault, contact Herrenknecht Laser target: Roll angle Laser target: Pitch angle Laser target: Yaw angle Laser target: Laser coarse search Laser target: Laser at edge Laser target: Laser intensity Laser target: Roll angle off Laser target: Pitch angle off Laser target: Calibration file Temperature Hardware fault, contact Herrenknecht Hardware fault, contact Herrenknecht Hardware fault, contact Herrenknecht Laser is searched for or laser is outside the target Laser at edge Laser beam too weak Excessive target roll (machine) Excessive laser target pitch (machine) Calibration file not available Display of the temperature in the laser target Reference -- Zero Volt Amplitude Diameter Serial number Controller no. Operation hours Display voltage 0 Volt Display amplitude (quality of the laser beam) Laser beam diameter Serial number of the laser target Controller no. of the laser target Operation hours of the laser target Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 114 of 128

115 UNS-HWL 7 UNS-HWL 7.1 Procedure for Creating a New Construction Site If a new advance cycle is started, the following sequence must be adhered to: 1.) Log-in to system (see section 5.5) With ELS-HWL 2.1) Create construction site as described under section Set-up the measuring system ELS-HWL mode in the mask "system parameters" (as described under section 7.2 et sequ.) 2.3.) Configure the HWL mask in "UNS-Editor" tab. With GNS 3.1) Create construction site as described under section ) Configure the HWL mask in "UNS-Editor" tab. 7.2 Mask "System Parameters" Opening the Mask "System Parameters" 1.) "Advance mask measuring" 2.) Selection of the "main menu" 3.) Selection of "measuring parameters" Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 115 of 128

116 UNS-HWL Description of the Mask "System Parameters" Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 116 of 128

117 UNS-HWL Designation Description / function Measuring system ELS ELS-HWL GNS Electronic Laser System Electronic Laser System with Hydrostatic Water Level Giro Navigation System Options Error disconnection When this option is selected, the following error messages are bridged: - Laser at edge - Excessive temperature in laser target Data back-up Wheel Time Protocol interval Time interval Protocol after a defined distance. Protocol after a defined period of time. Value after which distance a protocol is created Value after which time a protocol is created GNS-Com COM 1 - COM 4 Available COM ports at the computer. The settings are made by the factory and may only be modified by Herrenknecht staff. Only for control purposes. ELS-COM COM 1 - COM 4 Available COM ports at the computer. The settings are made by the factory and may only be modified by Herrenknecht staff. Only for control purposes. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 117 of 128

118 UNS-HWL Setting of "System Parameters" 1.) Select the measuring system "ELS-HWL" 2.) Select data back-up "wheel" or "time" Enter the corresponding "protocol interval" or "time interval" as value in the white field. 3.) Select or deselect options 4.) Exit menu 7.3 Mask "UNS-Editor" Tab "General Settings" Opening the Mask "UNS-Editor" 1.) "Advance mask measuring" 2.) Selection of the "main menu" 3.) Select the "UNS editor" Description of the Mask "UNS-Editor" Tab "General Settings" NOTE This mask only serves information purposes. The settings have been made by Herrenknecht Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 118 of 128

119 UNS-HWL Button / symbol Symbols Designation Information on the UNS system Activation of entry mode Display the keyboard Exit Description / function System information: e.g. software version, manufacturer, etc. When the entry mode is active, the field "edit" is ticked. Only then can changes be made. Upon operation of this button, the screen keyboard is opened. Exit menu. Log interval - Time - Distance Displays after what unit and value the protocol is created. Length encoder Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 119 of 128

120 UNS-HWL Length encoder Parameterisation of the length encoder By means of this function, a station can be written into the length encoder from m to 1, m. The write process takes approx. 4 sec. In this case, the station entry refers to the front edge of the ELS laser target and not to the cutting wheel tip. Press this button when a new length encoder is installed. The following values are parameterised: - Baud rate - CAN address (2) - Sender interval Usually, the system is parameterised by the factory. Al-Steering Analog input ways steering cylinders Activate Parameterisation analog signal transformer ma steering cylinders Activation / deactivation of the AI steering mode. If the mode is "activated", the extension lengths of the steering cylinders are automatically read in via the UNS system. If it is "not activated", the current cylinder stroke must be manually entered or read out of the PLC. This is factory-set and need not be changed. The following values are parameterised: - Baud rate - CAN address (9) - Sender interval Usually, the system is parameterised by the factory. Here, the ma values of the individual steering cylinders are displayed. Northstar 24 Interface Measuring duration Displays the PC interface (COM port) to which the Northstar 24 is connected. Displays how long the Northstar 24 gyro measuring takes. Display in seconds. The setting made by the factory is 180 seconds Changes are not necessary MWD Measuring while drilling Activate MWD gyro compass is "active" if this option is set. The Northstar 24 gyro compass is switched off. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 120 of 128

121 UNS-HWL Power supply MWD gyro compass Battery charging state Information on the gyro power supply. If this option is set, the MWD gyro compass is fed via the power supply. If this option has not been activated, the MWD gyro compass is operated with an integrated battery. Displays the battery's charging state Navl Navigation interval Limit TL Limit tunnel length Limit-Az Limit azimuth Determines after which distance the machine position is determined. Exclusion of a faulty determination of the machine position due to length encoder jumping. Determines the maximum jump of the length encoder in case of a malfunction. If this value is exceeded, an error message is displayed. Exclusion of a faulty determination of the machine position due to a faulty gyro measurement. Maximum permissible deviation of the azimuth in case of a malfunction. If this value is exceeded, an error message is displayed. Online values Shaft P1 Machine P2 Displays the pressure applied to the HWL reference sensor in the start shaft. Displays the pressure applied to the HWL height sensor in the TBM. Roll Displays the roll angle of the TBM. Pitch Height Station ELS Ver. deviation Displays the pitch angle of the TBM. This value is only displayed in the GNS mode. With ELS-HWL, the value 0 is displayed Displays the absolute height of the TBM (value in meters) Displays the advance length (station) down to the front edge of the ELS laser target in the TBM. Displays the vertical deviation of the TBM Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 121 of 128

122 UNS-HWL 7.4 Mask "UNS Editor" Tab "HWL" Description of the Mask "UNS-Editor" Tab "HWL" Button / symbol Designation Description / function dy dz Desired laser gradient Desired height at station 0.00m Limit Indicates the position of the height sensor in the TBM in consideration of the signs (+/-). Indicates the position of the height sensor in the TBM in consideration of the signs (+/-). Enter project pitch or gradient of the laser in consideration of the signs (+ gradient) (- pitch). Enter the desired height (absolute) at station 0.00 m. Determination of the tolerance range of the pressure fluctuations included in the calculation. Pressure fluctuations outside the tolerance ranges are not included in the calculation. Default optimal 150 Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 122 of 128

123 UNS-HWL Factor Barrier t1 t2 Moving average. The higher the value, the longer the measuring time and the more accurate the measuring results. Default optimal 50 Displacement of the tolerance range Default optimal 100 Sensor temperature in shaft P1 Sensor temperature in machine P2 Quality of vertical deviation. green = pressure fluctuations are ok red = excessive pressure fluctuations Density Correction Set Here, the temperature in the start shaft has to be entered. When the temperature is entered, the program automatically calculates the density. Here, the displayed value, vertical deviation is corrected. Entry in the newly opened window. For setting the actual vertical deviation towards the setpoint axis. Entry in the newly opened window. For the online values, refer to section Making Settings in "UNS-Editor" Tab "HWL" NOTE After the HWL has been installed, the following data must be entered, observing the correct sequence: 1.) Operating status "active" in which the option is set. 2.) Enter the position of the height sensor "dy" and "dz", observing the signs. Confirm your entry by pressing the "Enter" key. 3.) Check and, if required, adjust the desired laser gradient. Confirm your entry by pressing the "Enter" key. 4.) If absolute heights are used, an absolute height at station 0.00m has to be entered. Confirm your entry by pressing the "Enter" key. If no absolute heights are used, this field remains unchanged. Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 123 of 128

124 UNS-HWL 5.) Enter the density. Upon operation of this field, a new menu pops up. Enter the temperature in the start shaft. When the temperature is entered, the program automatically calculates the density. Confirm your entry by pressing the "Enter" key. 6.) If, up till now, all entries are complete and the online values "shaft P1" and "machine P2" are stable, the next step can be made. 7.) Operate the "Set" button Setting the actually measured "vertical deviation" towards the setpoint axis. Entry in the newly opened window. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 124 of 128

125 UNS-GNS 8 UNS-GNS 8.1 Procedure for Creating a New Construction Site If a new advance cycle is started, the following sequence must be adhered to: 1.) Log-in to system (see section 5.5) 2.) Make selection in mask "system parameters" (as described under section 8.2 et sequ.). 3.) Create a new advance cycle in the mask "UNS-Editor" tab GNS (refer to section 8.4 et sequ.). 4.) Enter the planned trajectory under "UNS-Editor" tab GNS (refer to section 8.4 et sequ.). 4.) Enter the start values (as described under section 8.6 et sequ.). 5.) Configure UNS-HWL in the mask "UNS-Editor" tab "HWL" (as described under section 7.4 et sequ.). 8.2 Mask "System Parameters" Opening the Mask "System Parameters" 1.) "Advance mask measurement" 2.) Selection of the "main menu" 3.) Selection of "measuring parameters" Herrenknecht AG, Schlehenweg 2 Edition: April 2007 D Schwanau 2, Phone / 3020 I Version: 0 Novembre 22, 2016 Page 125 of 128

126 UNS-GNS Description of the Mask "System Parameters" Designation Description / function Measuring system ELS ELS-HWL GNS Electronic Laser System Electronic Laser System with Hydrostatic Water Level Giro Navigation System Options Error disconnection When this option is selected, the following error messages are bridged: - Laser at edge - Excessive temperature in laser target Data back-up Wheel Protocol after a defined distance. Edition: April 2007 Herrenknecht AG, Schlehenweg 2 I D Schwanau 2, Phone / 3020 Novembre 22, 2016 Page 126 of 128