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Gravitational stresses in anisotropic rock masses

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts

By:
, , and
DOI: 10.1016/0148-9062(87)91227-7

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Abstract

This paper presents closed-form solutions for the stress field induced by gravity in anisotropic rock masses. These rocks are assumed to be laterally restrained and are modelled as a homogeneous, orthotropic or transversely isotropic, linearly elastic material. The analysis, constrained by the thermodynamic requirement that strain energy be positive definite, gives the following important result: inclusion of anisotropy broadens the range of permissible values of gravity-induced horizontal stresses. In fact, for some ranges of anisotropic rock properties, it is thermodynamically admissible for gravity-induced horizontal stresses to exceed the vertical stress component; this is not possible for the classical isotropic solution. Specific examples are presented to explore the nature of the gravity-induced stress field in anisotropic rocks and its dependence on the type, degree and orientation of anisotropy with respect to the horizontal ground surface. ?? 1987.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Gravitational stresses in anisotropic rock masses
Series title:
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts
DOI:
10.1016/0148-9062(87)91227-7
Volume
24
Issue:
1
Year Published:
1987
Language:
English
Publisher:
Elsevier
Description:
p.5-14
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts
First page:
5
Last page:
14