num_pages: 184
description: 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.
language: English
title: TBM Tunnelling in Jointed and Faulted Rock
titlecomplete: TBM Tunnelling in Jointed and Faulted Rock
ratings_count: 1
publisher: CRC Press