Exact effective-stress rules in rock mechanics
Author:
- 1 September 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 46 (6) , 3307-3311
Abstract
The standard paradigm for analysis of rock deformation arises from postulating the existence of ‘‘an equivalent homogeneous porous rock.’’ However, data on the pore-pressure dependence of fluid permeability for some rocks cannot be explained using any equivalent homogeneous porous medium. In contrast, a positive result shows that deformation measurements on both high-porosity sandstones and low-porosity granites can be explained adequately in terms of an equivalent two-constituent model of porous rocks, for which exact results have recently been discovered.Keywords
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