This cross-disciplinary work offers an exceptionally relevant examination of those aspects of earth science dealing with seismic behavior of fractured media. It delivers a lucid exploration of rock mechanics, examining the strengths and weakness of structures beneath the earth's immediate surface. Deliberately non-mathematical and phenomenological in nature, this volume reviews examples of seismic measurements from various fields under widely varied conditions, supported by a wealth of figures drawn from a broad review of the literature. The last chapters delve into deeper, higher stress,...

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...