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Multiscale Approach to Micro-Poro-Mechanical Modelling of Unsaturated Shales

  • Richard WanEmail author
  • Mahdad Eghbalian
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

The paper outlines the multiscale mathematical formulation of clay-rich shales as a swelling capillary porous medium with a resolution as fine as the nanoscale. The starting point is the description of the physicochemical interactions between elementary crystalline units–the so-called clay sheets or platelets. By way of homogenization, the clay platelet physics is upscaled to represent a system of randomly dispersed shale particles at the microscale with the void spaces partially saturated with a liquid, i.e. water. The end result is the constitutive description of clay shales enriched with microstructural details down to the clay platelet level that can readily describe swelling or shrinkage in terms of physicochemical loading.

Keywords

Matric Suction Uniform Strain Shale Sample Clay Platelet Clay Shale 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

Financial support for this research was provided by the Natural Sciences and Engineering Research Council of Canada (NSERC) and Foundation CMG.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Department of Civil EngineeringUniversity of CalgaryCalgaryCanada

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