Edge effects in the vicinity of a horizontal excavation weakened by a geological crack (Q2754764)
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scientific article; zbMATH DE number 1668400
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Edge effects in the vicinity of a horizontal excavation weakened by a geological crack |
scientific article; zbMATH DE number 1668400 |
Statements
4 November 2001
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rock massif
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linear elasticity
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horizontal excavation
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edge effect zone
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geological crack
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finite difference method
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plane strain problem
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undamped massif
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uniform two-axial stress state
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mixed boundary value problem
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method of conjugate gradients
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0.81695294
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0.8001921
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0.7966176
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0.79656625
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0.7903819
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0.7880337
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0.7862148
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Edge effects in the vicinity of a horizontal excavation weakened by a geological crack (English)
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A rock massif and the material filling the cracks are modelled as linearly elastic isotropic solids, and the plane strain problem is considered. The authors assume that a uniform two-axial stress state is realized in an undamaged massif. Some criterion of extension of edge effect zone is formulated, and the corresponding mixed boundary value problem is solved numerically by a finite difference method combined with the method of conjugate gradients. A numerical example is considered, and boundaries of the edge zone are obtained.
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