Stress Field of the Earth’s Crust

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Stress Field of the Earth’s Crust

Author: Arno Zang and Ove Stephansson | Size: 7.5 MB | Format: PDF | Publisher: Springer | Year: 2009 | pages: 240 | ISBN: 1402084439

Rock stress is a key parameter in solid Earth sciences and technology. Long-term geological processes like plate tectonics are driven by mechanisms that generate different types of stresses in the Earth’s crust. These stresses are acting as we extract raw materials from the crust and deposit human altered materials into the crust in boreholes, mines and underground constructions. To better use and save our resources there is an obvious need for a greater understanding of mechanical stresses in the Earth’s crust. This book is directed toward graduate students, teachers and practitioners in geology, geophysics and civil, mining, petroleum and rock engineering. The book aims to fill the gap in the existing literature between principles in rock mechanics (Jaeger, Cook & Zimmerman 2007), rock stress measurements (Amadei & Stephansson 1997) and stress regimes in the lithosphere (Engelder 1993). Mechanical stress and rock stress are fictitious terms as stress can never be directly measured. Stresses in rock originate from gravity and tectonic forces and can only be inferred by disturbing the rock by drilling a borehole, making a slot and coring the rock. The drill core can be brought to the laboratory and stresses determined by different physical methods. The complex nature of rocks prevents us from exactly determinating the magnitudes and orientation of the components of the stress tensor and often we have to accept large variability and uncertainties. Stress in rock is usually described in the context of continuum mechanics.

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Arno Zang, Ove Stephansson, Stress Field of the Earth's Crust
Springer | 2009 | ISBN: 1402084439 | 322 pages | PDF | 6,4 MB

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