Stress Field Of The Earth's Crust

This book about rock stress is suitable for students in geosciences and rock engineering, who need to broaden their horizons about the Stress Field of the Earth's Crust. The book covers the topic so that geosciences students will be able to grasp the Cauchy Stress Principle without fear of matrix transformations in an exercise. Students interested in mathematics, physics and engineering will learn how strain gauges are used to obtain in-situ stress by the over-coring method. Leading edge technology in determining rock stress like quadruple packer and the Kaiser effect are presented together with classical methods like hydraulic fracturing. Borehole techniques (breakouts) and core-based methods (anelastic strain recovery) are illustrated. With respect to stress data, we choose to present the scientific ultra-deep drilling project KTB (Germany), the excavation for nuclear waste disposal at Olkiluoto (Finland), and the drilling into a seismic active fault zone at SAFOD (USA). Stress compilations viewed by the World stress Map project are presented and interpreted in terms of plate tectonics. The book includes exercises and is accompanied by a DVD containing seventeen video lectures. The movies give insights into laboratory testing, show technical equipment used in the field and archive interviews with eminent authorities in the field of rock stress. The DVD is enriched by the World Stress Map data sets. Book jacket.

Arno H. W. Zang, Permanent staff geophysicist at GFZ German Research Centre for Geosciences and Privatdozent at University of Potsdam; Dr. phil. nat. from Goethe-University Frankfurt/Main, Dr. rer. nat. habil. from Potsdam University. Research interests: rock physics and experimental fracture mechanics; crack growth; crustal stress and scaling in Earth's Sciences. Most of his career was at GFZ Potsdam, with visiting scholar at CIRES Boulder, Colorado, member of KTB stress task group, post-doc at State University of New York at Stony Brook. Ove J. Stephansson, Visiting professor at GFZ German Research Centre for Geosciences and Emeritus Professor of Engineering Geology, Royal Institute of Technology (KTH), Stockholm; PhD and docent at University of Uppsala. Research interests: rock stress and its measurement; rock fracture mechanics; rock mechanics modelling, rock engineering. Most of his career was at Lule University of Technology and KTH with visiting professorships at Colorado School of Mines and Helsinki University of Technology and post-doc at CSIRO, Mineral Physics, Australia.