17/03/2017 CONTENTS. Real Cases Studies in the Region for Pipelines Inspection & Rehabilitation. Introduction CONTENTS. Introduction / Cont.
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1 E M I R A T E S Real Cases Studies in the Region for Pipelines Inspection & Rehabilitation i) Introduction Dubia, UAE 14 March 2017 Trenchless Middle East Faiz Alelweet & Eng. Hamza Ali Maintenance Manager Introduction i) Introduction International Aramoon Co. Ltd. (IAC) was founded in Riyadh since 1990 with HO is in Riyadh and branch offices cover all KSA. We are present now in UAE, Qatar & Bahrain. IAC is an engineering firm specialized in No-Dig Water Leak detection (NRW), Test and Repair for Water & Sewer Networks (Pipelines Inspection and Rehab.). IAC is considered to be first local specialized Trenchless Technology contractor. First rehabilitation project was in 1997 in Jubail, KSA. About 1200 employees working in Aramoon. Aramoon is accredited by Saudi Government in the highest category (No. 1) of contractor under the National Classification System. Tabuk Khafji Dammam Madinah Khobar Riyadh Makkah & Taif Ahsa Jeddah Abha 2 Introduction / Cont. Aramoon Group & subsidiaries and business partners For 4 Cases Studies i) Introduction 1
2 Case Study (1) Case Study (1) Case Study No. 1 No-Dig Inspection and Rehabilitation of Sewage Pipelines for City of Dammam, KSA Project Name Client Contract Number : No-Dig Inspection and Rehabilitation of Sewage Pipelines for City of Dammam : General Directorate of Water in the Eastern Province : 13/IAC/M10 Letter of Intent Date : 14 th of May 2013 Starting Date : 10 th of July 2013 Completion Date : 16 th of December Case Study (1) No-Dig Inspection and Rehabilitation of Sewage Pipelines for City of Dammam Case Study (1) No-Dig Inspection and Rehabilitation of Sewage Pipelines for City of Dammam Host Pipes Material Pipes Diameters Pipes Length under Inspection : 10,000m Pipes Length for CIPP-UV : 17,082m Pipes Length to be Replaced : 5,500m Pipes Depth Network Age Project Status : Clay, GRP and Ductile Iron Pipes : 200mm to 1,100mm : varies from 2m to 8m : more than 35 Years old : completed 1. Integrated solution of the existing service problems in the sewer network: Pipe Blockages. Accumulation of wastes and sand inside manholes. Soil infiltration inside the pipelines. Roads settlement due to pipelines failure. Sewage water over floods to the street surface. Roots intrusion inside the pipelines of the network,..etc. 2. Provide durable rehabilitation system for the network. 3. Enhance the operational efficiency of the network. 4. Minimize the disruption of the traffic flow at the site location Case Study (2) Case Study (2) Case Study No. 2 Survey of Batha Trunk Main passing under storm box culvert in Riyadh, KSA Project Name Client Contract Number : Survey of Batha Trunk Main passing under storm box culvert in Riyadh : National Water Company (NWC) : 11/IAC/M13 Letter of Intent Date : 5 th of December 2011 Starting Date : 12 th of February 2012 Completion Date : 19 th of May
3 Host Pipes Material Pipes Diameters Pipes Length under Inspection : 5,000m Pipes Depth Network Age Project Status Case Study (2) Survey of Batha Trunk Main passing under storm box culvert in Riyadh : Asbestos Cement & Reinforced Concrete : 1,200mm to 2,000mm : up to 8m : more than 40 Years old : completed Case Study (2) Survey of Batha Trunk Main passing under storm box culvert in Riyadh 1. To evaluate the structural condition of the Trunk Main: Pipe corrosion Pipe deformation Pipe cracks & fractures 2. To ensure that the Trunk Main function & hydraulic condition remain adequate to operate & provide the required level of serviceability: Pipe blockage Accumulation of wastes, debris & sand inside the trunk main Water infiltration 3. To provide a technical report for repairing or rehabilitation methods based on findings & results after the analysis of the field investigation undertaken Case Study (3) Case Study (3) i) Contractual Data Case Study No. 3 Cleaning, Inspection & Repair of Foul Sewer in City of Doha, Qatar Project Name Client Consultant Contract Number : Cleaning, Inspection & Repair of foul sewer in city of Doha : Public Works Authority (ASHGHAL) : WS Atkins & Partners Overseas : 16/IACQ/M02 Starting Date : 5 th of November 2016 Completion Date : 4 th of January Case Study (3) Case Study (3) ii) Project Data Cleaning, Inspection & Repair of foul sewer in city of Doha Cleaning, Inspection & Repair of foul sewer in city of Doha Host Pipes Material : Concrete pipes Pipes Diameters : 800mm & 1000mm Pipes Length under Inspection : 7,763m Number of Patch Repair : 17 spots Pipes Depth : from 4.50m to 21m Network Age : newly constructed Project Status : Completed To provide CCTV inspection report for Handover to Public Works Authority (ASHGHAL) including:- 1. Enhancement of the hydraulic & operational efficiency of the foul network. 2. Inspection & condition assessment of the foul network. 3. Renovation of the defects specially the high infiltration
4 Case Study (4) Case Study (4) Case Study No. 4 Sewer Network Rehabilitation using CIPP-UV in Abu Dhabi, UAE Project Name Client Consultant Contract Number : Sewer Network Rehabilitation using CIPP-UV in Abu Dhabi, UAE : Al-Jaber Group / for ADSSC : Dorsch Gruppe DC Abu Dhabi : IACE A152-AV-T&C Letter of Intent Date : 5 th of September 2016 Starting Date : 14 th of January 2017 Completion Date : on going Case Study (4) Case Study (4) Sewer Network Rehabilitation using CIPP-UV in Abu Dhabi, UAE Sewer Network Rehabilitation using CIPP-UV in Abu Dhabi, UAE Host Pipes Material Pipes Diameters Pipes Length under Inspection : GRP : 200mm, 250mm, 400mm & 600mm : 686m Pipes Length under CIPP-UV : m Number of Patch Repair : 9 spots Pipes Depth : from 6m to 8.50m Network Age Problem : 8 Years old : Infiltration, cracks, joints displacement & pipe deflection Integrated solution of the existing structural problems in the sewer network Structural defects of sewer network Porous pipe Fissure Surface joint Displaced joint Soil infiltration inside the pipelines Ground water infiltration i) Introduction 4
5 17/03/2017 1) Mobilization & Site Preparation Isolation of working area from traffic flow 1- Mobilization & site preparation 2- Flow control & over pumping (By-pass) 3- Hydro jet and mechanical cleaning 4- Pipe inspection: 5- CIPP-UV pipe rehabilitation system 26 1) Mobilization & Site Preparation / Cont. 1) Mobilization & Site Preparation / Cont. Mobilization & arrangements for insertion and launching the combined profiler ) Mobilization & Site Preparation / Cont. Preparation of cofferdam in the box culvert Profiler control system 1- Mobilization & site preparation 2- Flow control & over pumping (By-pass) 3- Hydro jet and mechanical cleaning 4- Pipe inspection: 5- CIPP-UV pipe rehabilitation system 29 5
6 2) Flow Control & Bypass 2) Flow Control & Bypass / Cont. Steel Ramps for protection of pumps hoses during bypass activities 31 By-pass installation on main lines 32 3) Hydro Jet & Mechanical Cleaning Sewer and storm water lines are commonly cleaned by using High Pressure Jetting with vacuum suction by so called Combination Tankers. The new generation of these machines have water recycle capabilities which makes the operation less depending on availability of clean water. 34 3) Hydro Jet & Mechanical Cleaning / Cont. 3) Hydro Jet & Mechanical Cleaning / Cont. Wastes Removal and Dumping Robotic Cutter Chain Cutter Removal of stones and rocks from the pipeline Wastes disposal in an approved sanitary landfill Mechanical cleaning is done: To clean up the deposited wastes on the internal walls of the pipes. To cut the intruded roots, cables, pipes or any other obstruction for the lining process. To remove the sharp edges in the pipes that may damage the lining material during the rehabilitation process
7 a) CCTV Camera Inspection 38 a) CCTV Camera Inspection / Cont. a) CCTV Camera Inspection / Cont. Missing wall piece Deformed connection Multiple cracks Longitudinal crack with infiltration Wastes & Debris Accumulation Protruding iron rod inside the pipeline a) CCTV Camera Inspection / Cont. Partial blockage Illegal connection Damaged walls of Manhole Internal Corrosion Broken Pipe Wall Multiple Fractures 41 7
8 b) Deflection Measurement b) Deflection Measurement / Cont c) Combined Profiler Inspection HD TV Inspection Flat Graph Laser / Sonar Inspection Flat graph is drawn with the pipe being split at the 6 O clock position and flattened out to form a flat page. Colors represent how the data matches the reference shape by: White Color : Data lies close to the reference shape. Yellow to Red Color : Deviation outside of the reference shape (e.g. corrosion, missing wall piece etc). Blue Scale : Deviation outside of the reference shape (e.g. debris, incrustations,..etc) 46 c) Combined Profiler Inspection / Cont. 47 8
9 5) CIPP-UV Pipe Rehabilitation 5) CIPP-UV Pipe Rehabilitation / Cont. Compressors for Liner inflation UV Light Trains Liner insertion inside the pipe Installation of end caps End Caps (End Packers) ) CIPP-UV Pipe Rehabilitation / Cont. 5) CIPP-UV Pipe Rehabilitation / Cont. Before Rehabilitation Insertion of UV light train After Rehabilitation UV light train pulling inside Liner UV curing control the inflated liner i) Introduction 1. High flow rates and large diameters of pipelines (up to 1100mm). 2. Accumulation of debris, stones, fats and grease inside the pipelines, this wastes accumulation form a partial blockage inside the pipelines. 3. Deep pipeline inverts up to more than 8m from the ground surface. 4. Majority of the pipelines located in high traffic and congested areas. 5. Several structural defects and service problems (e.g. fractures, cracks, joints displacement, delamination, infiltration, illegal connections, Etc.) 6. Partial and/or full collapse of some sections which will be replaced by open cut method. 7. And more 54 9
10 17/03/2017 / Cont. / Cont. Collapsed sections in host pipes Heavy Traffic Buried manholes under asphalt Revealing buried Manholes Narrow Street / Cont. Lost manhole cover Pipeline Blockage High wastes accumulation up to 80% of the pipe i) Introduction ii) Contractual Data iii) Project Data iv) Project Objective v) Scope of Work vi) Constraints vii) Conclusion Car tyre blockage Lost plug High wastewater flow rate Severe corrosion & deterioration in host pipe 57 E MI RAT E S 1. Jet cleaning is an important activity to enhance the hydraulic capacity of the sewage pipelines, it is considered as a part of the preventive maintenance of the sewer networks. 2. CCTV inspection is an effective and economic way to evaluate the internal conditions of the pipelines without digging. 3. CIPP-UV system can be done as structural or non-structural rehabilitation system for the sewer pipelines. 4. CIPP-UV system is easy and fast technique if compared with the conventional open cut. 5. No damages to other underground utilities during work. 6. No-Dig rehabilitation is restoring the structural strength and the hydraulic capacity of the sewer network pipelines. 7. The CIPP-UV system has reduced the total project cost comparing with conventional method (open cut). 8. Client is satisfied. Thank You
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