TBN Tunnelling in Jointed and Faulted Rock (Hardcover, UK)

Preface
Acknowledgements

Part 1: Basic interactions between the rock mass and the TBM

1. Introduction
2. Some basic TBM designs
3. Summary of common geotechnical problems
4. The TBM excavation disturbed zone
5. Basic factors affecting penetration rate
6. Penetration rate and thrust per cutter
7. The possible influence of stress and strength ratios
8. Basic mechanism of chip formation with roller cutters
9. Tensile strength and its anisotropy
10. Penetration rate and fabric anisotropy
11. Penetration rate, joint spacing and joint character

Part 2: Q, Q_TBM and rock mass variability

12. TBM performance and rock mass classification
13. TBM performance and Q-system parameters
14. TBM performance and the initial requirements for 'Q_TBM'
15. The law of decelerating advance rates
16. Utilisation and its decay with time
17. Unexpected events and their Q-values
18. Water inflows in TBM driven tunnels
19. Consequences of limited stand-up time in TBM tunnels
20. The relationship between PR, AR and Q_TBM
21. Rock mass variability and its effect on predicted performance
22. Fine-tuning Q_TBM for anisotropy
23. Cutter wear and its effect on PR and AR
24. Effect of porosity and quartz content on gradient m and PR
25. Tunnel size effects
26. Boring in exceptionally tough, high-stress conditions
27. Revisiting cutter force effects
28. Predicting advance rates in faulted rock

Part 3: Logging, tunnel support, probing and design verification

29. TBM Q-logging and tunnel scale effects
30. Rock support methods commonly used in TBM tunnels
31. Some support design details for TBM tunnels
32. Probing and convergence measurement
33. Probing and seismic or sonic logging
34. Verifying support classes with numerical models
35. Logging rock quality and support needs
36. TBM or drill-and-blast excavations
37. Conclusions

Appendix
A1 Q-method of rock mass classification
A2 Q_TBM - the final version of Figure 44
A3 Input data summary for estimating PR and AR using Q_TBM
A4 Worked example

References
Index