TSP 203PLUS. Geophysical Prediction in Underground Construction

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1 TSP 203PLUS Geophysical Prediction in Underground Construction

2 Tunnelling a business with hidden pitfalls The trend towards mechanised production in underground construction is unmistakable. Successful tunnel builders rely on high-performance, but capital intensive excavation techniques backed up by sophisticated logistics systems. These are designed to produce uninterrupted advance with manageable risks with a high degree of efficiency. Hidden risks Ground conditions are always a source of unknown difficulties where hidden geological hazards lie in wait. Unforeseen changes in rock conditions can all too often cause unnecessary costly down-time and problems. Success is in the details Practical system components, comprehensive measurement, and expert software are the fundamental factors which make the difference. Compared to traditional prediction techniques TSP 203PLUS provides practical advantages. Without prediction you run the risk of: Cave-in, collapse, water ingress Expensive downtimes Entrapment of TBMs Endangerment of people and equipment Ahead of the face? Advance notice of lithological heterogeneity and any variation in mechanical rock properties which could have an effect on the construction techniques selected, is an important factor for any tunnel. Such early warning makes it possible to ensure that specific countermeasures and logistic procedures are planned in good time. Continuous, highquality predictions enable the management of risks inherent in tunnelling. Comparison of methods of 200 m range TSP Georadar Percussive drilling Core drilling Exploration range 200 m 20 m 100 m 100 m Numbers of campaigns needed Face access no yes yes yes Total measuring time / down time hrs 15 hrs ~ 20 hrs ~ 100 hrs Measurement by trained engineer trained engineer site personnel site personnel Total evaluation time 3-6 hrs hrs 1 h 8-12 hrs Evaluation by trained engineer trained engineer site personnel/geologist geologist Petrographic information no no conditional good Rock mechanical properties good no conditional good (laboratory) Spatial resolution good no no conditional

3 TSPwin PLUS Sophisticated software intelligence for quick and clear results TSPwin PLUS is the easy to use software that provides rapid evaluation of seismic measurements directly on-site, where you need them most. Professionally processed results Comprehensive results The Windows-based software offers practical menu guidance and well-structured data management. Fully or semi-automated processes lead the user straight to the results. Powerful processing algorithms get the most out of the seismic measurement data. The evaluation of a measuring sequence up to the presentation of clear and comprehensive results normally takes no more than three hours. Data export or complete graphical and numerical outputs are provided for professional reporting. Clear and distinct presentation of the results, displayed according to their spatial location in two or three-dimensional views. Immediate localisation of potentially hazardous scenarios through reference of geological discontinuities to the tunnel chainage. Calculation of rock mechanical properties ahead of the face thanks to velocity modelling. Advantages of TSPwin PLUS Simple guided processes, fully or semiautomatic evaluation with project specific parameters. Presentation of results is referenced to the tunnel chainage Results available directly on site within hours Iterative approach of re-evaluation by comparison to actual conditions

4 TSP 203PLUS Prediction with vision: minimise risks, reduce costs TSP Measurement technique: practice-related method with full integration in construction operation. TSP Tunnel Seismic Prediction TSP 203PLUS is a system solution specifically developed for underground construction. It evaluates seismic echo signals reflected from changes in the elastic rock characteristics normally associated with discontinuities in rock masses. TSP provides accurate spatial information concerning the geology and rock mechanical properties in front of and in the vicinity of the face. Range well over 100m Depending on the rock formation, TSP 203PLUS can identify rock variations up to several hundred metres ahead of the face enabling the identification of any potential risk zones well in advance of the heading. Construction and logistical measures can thus be planned early, minimising expensive downtimes and exposure of people and equipment. In addition rock mechanical properties provide important information for reliable and cost effective rock support planning. TSP 203PLUS: clear cost advantages in comparison to standard prediction methods incl. down-time Cost effective option TSP 203PLUS also has convincing financial benefits. If the costs for equipment, material, boring and measurement times are compared, and then the downtime costs invariably associated with conventional prediction techniques are considered, TSP 203PLUS has clear cost advantages whether for blasting or TBM heading operations. Profit through continuous prediction Gain time for construction and logistical counter-measures. Minimise the downtime risk of expensive tunnelling equipment. Improve safety. Profit from shorter construction times and costs savings.

5 TSP 203PLUS State of the art technology for reliable results TSP 203PLUS localises geological fault zones, discontinuities, karst cavities and potentially water bearing formations. The seismic waves are produced by small explosive charges. The highly sensitive seismic 3-component sensors of the TSP system receive the P and S wave fronts reflected by variations in elastic rock properties. This seismic data is processed by the TSPwin PLUS software to calculate the seismic velocities, spatial location, and rock mechanical parameters of the events. TSP 203PLUS is extremely simple to use and guarantees a non-obstructive integration in the construction operation. TSP 203PLUS Triaxial Seismic Receiver Unit The high-sensitivity sensors are inserted into a precision casing, which is frictionlocked coupled to the rock mass by a two-compound adhesive in a 2 m, Ø 45 mm borehole. Installation is exceptionally simple comparable with the setting of a rock bolt. TSP 203PLUS Seismic Recording Unit 12-channel / 24-bit seismic recording unit with integrated, high performance Toughbook PC for measurements and result evaluation. Practical features of TSP 203PLUS Ready to measure within 30 minutes Prediction range from up to several hundred metres Can be used in both TBM and conventional headings Easy non-obstructing integration in the construction operation thanks to flexible application (face access not necessary) Spatial positioning of fault zones and potentially water-bearing features thanks to 3-component seismic sensors (P and S waves) Fully independent battery operation Built for the roughest site conditions

6 The TSP 203PLUS System Solution Compact, heavy-duty design The TSP 203PLUS comes as a complete «ready-to-use» system. It is contained in three easy-to-carry, water and dust proof boxes designed for the unforgiving conditions of underground construction. The TSP 203PLUS system package includes the following components and consumable items for measurements: TSP 203PLUS seismic recording unit with integrated Toughbook PC Water-tight accessory box with installation kit for the triaxial seismic receivers, electronic inclinometer, hand-held laser meter, multi-tool, drill bit 45mm, trigger box, charger, cable drum holders, cables and instruction manuals. Two TSP 203PLUS triaxial seismic receiver units 36 casings including 2-component adhesive cartridges. System training the key to success A practical-oriented 5-day training course at the construction site guarantees the success of your TSP 203PLUS operations. Ongoing service and consulting is readily available. TSP 203PLUS detailed documentation Ask for the supplementary information on the TSP 203PLUS system or call us. We would be happy to discuss your project and how you can manage your risks. TSP 203 is a Registered Trade Mark of Amberg Technologies AG. Switzerland. Patents applied. TSP 203PLUS: easy-to-carry and heavyduty design for problem-free operation. Comprehensive system training puts you on the road to success. Amberg Technologies AG Trockenloostrasse 21 CH-8105 Regensdorf Switzerland Phone Fax info@amberg.ch / en / / Images, descriptions and technical data are non-binding. All rights reserved to make changes Amberg Technologies AG