تونل‌زنی TBM در سنگ‌های مفصل‌دار و دارای گسل

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, Q TBM . The author analyzes 145 TBM tunnels that total 1,000km in length. He then develops simple formulae to estimate PR and AR from the Q TBM value and to back-calculate Q TBM 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. "This book describes the stage by stage development of a new method for predicting the penetration rate (PR) and the advance rate (AR) for tunnel boring machine. It is based on an expanded version of the Q-value, termed Q[subscript TBM]. Some 145 TBM tunnels totalling about 1000 km in length were analysed. As a result some simple formulae are developed, to estimate PR and AR from the Q[subscript TBM] value, or to back-calculate Q[subscript TBM] from performance data. Logging methods, empirical TBM tunnel support design, and numerical verification of support are also treated in this slim but practical book on TBM tunnelling." "This book is a useful source of reference for consultants, contractors and owners of TBM tunnels, and for those involved with feasibility studies, machine and support design and follow-up of tunnel progress. Among the geotechnical community, the book will be useful for geologists, engineering geologists and rock mechanics engineers, civil engineers and mining engineers with a professional interest in TBM tunnelling."--BOOK JACKET 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, Q TBM. The author analyzes 145 TBM tunnels that total 1,000km in length. He then develops simple formulae to estimate PR and AR from the Q TBM value and to back-calculate Q TBM 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.