Titlebook: Rock Damage and Fluid Transport, Part I; Georg Dresen,Arno Zang,Ove Stephansson Book 2006 Birkhäuser Basel 2006 excavation.geotechnical en

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Can Damage Mechanics Explain Temporal Scaling Laws in Brittle Fracture and Seismicity?,tinuum damage mechanics in which damage (microcracking) starts to develop when the applied stress exceeds a prescribed yield stress (a material parameter) is introduced to explain both laboratory experiments and systematic temporal variations in seismicity.

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Cohesive Crack Analysis of Toughness Increase Due to Confining Pressure, on the fracture energy concept. The analytical solutions are confirmed by comparing them with the results of numerical computations performed using the body force method. The analytical solution suggests a substantial increase in the apparent fracture toughness due to increased confining pressures,

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Comparison of Numerical and Physical Models for Understanding Shear Fracture Processes,ion of macro-shear structures. It is apparent, also, that further investigation is required to determine how consistent rules can be established to link micro-failure criteria to equivalent macro-strength and toughness properties for a macro-shear slip surface.

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Upscaling: Effective Medium Theory, Numerical Methods and the Fractal Dream,lity, lithological units and various structural discontinuities at different scales is part of this construction. The result is that stochastic reservoir models are built that rely on various numerical upscaling methods. These methods are reviewed. They provide techniques which make it possible to d