TBM Tunnelling in Jointed and Faulted Rock
| Author | : Nick R. Barton |
| Publisher | : CRC Press |
| Total Pages | : 192 |
| Release | : 2000-01-01 |
| ISBN-10 | : 9058093417 |
| ISBN-13 | : 9789058093417 |
| Rating | : 4/5 (417 Downloads) |
Download or read book TBM Tunnelling in Jointed and Faulted Rock written by Nick R. Barton and published by CRC Press. This book was released on 2000-01-01 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide describes the stage-by-stage development of a method for predicting the penetration rate (PR) and the advance rate (AR) for tunnel boring machines based on an expanded version of the Q-value, QTBM. The author analyzes 145 TBM tunnels that total 1,000km in length. He then develops simple formulae to estimate PR and AR from the QTBM value and to back-calculate QTBM from performance data. The book quantitatively explains actual advance rates as high as five m/hr for one day or as low as 0.005 m/hr for several months. It also covers logging methods, empirical TBM tunnel support design, and numerical verification of support.
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