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Klappentext Vast knowledge has been developed in the area of tunnelling in weak rocks over the years! and this book bridges an important gap by bringing all the information together for the benefit of the tunnelling Industry. In particular! tunnelling in poor conditions is a huge challenge for engineers and designers! and this book tackles all typical problems headon. Topics covered include classification approach! design approaches for site-specific grounds! a new invention on shielded tunnel boring machine! case histories! tunnel mechanics! risk engineering and management culture. Based on extensive field research experiences in Himalayan region and AlpsExclusive chapters on tunnelling hazards! squeezing ground conditions (a full detailed case study)! swelling ground conditions! critical state rock mechanics! etc.Supported by over 180 figures and 90 tables of data! and test examples (with solutions) Zusammenfassung Brings various information about tunnelling in weak rocks together for the benefit of the tunnelling Industry. This work covers topics such as: classification approach! design approaches for site-specific grounds! an invention on shielded tunnel boring machine! case histories! tunnel mechanics! risk engineering and management culture. Inhaltsverzeichnis 1. Introduction 2. Application Of Geophysics In Tunnelling And Site Survey Activities 3. Terzaghi's Rock Load Theory 4. Rock Mass Rating (RMR) 5. Rock Mass Quality Q 6. Rock Mass Number 7. Strength Of Discontinuities 8. Strength Enhancement Of Rock Mass Intunnels 9. New Austrian Tunnelling Method (NATM) 10. Norwegian Method Of Tunnelling (NMT) 11. Blasting For Tunnels And Roadways 12. Rock Bolting 13. Tunnelling Hazards 14. Tunnel Instrumentation 15. Tunnelling Machines 16. Rock Mass Quality For Tunnel Boring Machines (QTBM) 17. Metro Tunnels 18. Tunnelling In Swelling Rocks 19. Tunnelling Through Squeezing Ground Condition 20. Case History Of Tunnel In Squeezing Ground 21. Tunnels In Seismic Area 22. Rock Burst In Tunnels 23. Pressure Tunnels 24. Shafts 25. Half Tunnels 26. Contractual Risk Sharing 27. Rate Of Tunnelling 28. Integrated Method Of Tunnelling 29. Critical State Rock Mechanics And Its Applications ...
