Civil Engineering Association

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TBM Tunnelling in Jointed and Faulted Rock

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.
Hardcover: 184 pages
Publisher: Taylor & Francis; 1 edition (January 1, 2000)
Language: English

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Additional product details:
# ISBN-10: 9058093417
# ISBN-13: 978-9058093417

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If you like this book, buy it! Support the author(s) of the book!

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The aprroach of Q TBM should be treated with care. A critical review of Q method and Q TBM was published by Palmstrom and Broch, which you can access here:
Use and misuse of rock mass classification systems with particular reference to the Q system

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regards
Flexi

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