TBM Excavation in Difficult Ground Conditions: Case Studies from Turkey
John Wiley & Sons, Dec 12, 2016 - Technology & Engineering - 354 pages
The book relates experience of TBM drives in difficult geology, making use of case studies from Turkey to demonstrate the influence of the local geotechnical conditions on the selection of a tunnel boring machine and the selection of tools. There is an extensive description how various geological phenomena, such as for example transition zones, dikes, rock discontinuities, blocky ground, squeezing ground, swelling clays and high strength and abrasive rocks, can reduce the advance rate and what countermeasures can be introduced. There is also a discussion of necessary advance probing and safety measures. Since the presented practical experience from Turkey can also be applicable for other tunnel projects in difficult geology, the book represents a valuable source of knowledge for every tunneler.
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Algan Anatolian Fault andesite Average bentonite Beykoz blocks chainage clay claystone clogging complex geology compressive strength Copur cutter consumption cutter ring daily advance rate depth of cut diabase diameter difficult ground conditions East Anatolian Fault EPB-TBM Ernst & Sohn face collapses field specific energy geological formations given in Figure Herrenknecht injection Istanbul Technical University Kargi Kartal formation limestone machine utilization Marmaray methane metro line metro tunnels muck mudstone North Anatolian Fault optimum parameters predicted probe drilling rate ratio rock cutting tests rock formations rock mass sandstone screw conveyor seen in Figure sewerage tunnel shale shield Siltstone specific energy specific energy values stoppages TBM Excavation TBM performance TBM thrust thrust and torque thrust force torque Trakya formation tunnel boring machine tunnel excavation tunnel face tunneling projects Turkey Uluabat umbrella arch uniaxial compressive strength Variation wastewater tunnel water content World Tunnel Congress