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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,...

Fracture and flow of rocks under stress and their geophysical and seismological implications raise fundamental questions in rock mechanics, particularly in the areas of tectonophysics and seismology. This text exclusively addresses the deformation and fracture of rock specimens under general triaxial compression, in which all three principal stresses are different; which significantly affects the ultimate strength of rocks. It moreover deals with deformation and failure folloiwng intermediate principal stress in graphic and numerical form. The effect of the intrinsic features of 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...