Journal
COMPUTERS AND GEOTECHNICS
Volume 37, Issue 5, Pages 585-593Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2010.02.008
Keywords
Geomaterials; Linear homogenization; Homogenization schemes; Experimental validation; Rock micromechanics
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In order to provide a physical interpretation of the variation of the mechanical properties of Callovo-Oxfordian argillite with mineral composition, we implement three linear homogenization schemes. The argillite is modeled as a three phase material composed of a clay matrix and inclusions of quartz and calcite. It is shown that, unlike the dilute scheme and the self-consistent scheme, the Mori-Tanaka model describes the in situ experimental data well. The determined properties are finally used in a finite element computation. The aim is to evaluate the effect of mineral composition on the elastic response of the excavation of a vertical shaft in the context of the underground laboratory of Meuse/Haute Marne. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.
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