Displacement Discontinuity Method For Three-Dimensional Stress Analysis Of Tabular Excavations In Non-Homogeneous Rock

Wardle, Leigh J.
Organization: International Conference on Ground Control in Mining
Pages: 8
Publication Date: Jan 1, 1984
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This paper describes a numerical method for calculating the three¬-dimensional stresses and displacements induced by tabular excavations in a rock mass consisting of parallel layers of distinct material properties. The method is based on the superposition of numerical solutions for elementary displacement discontinuities in a parallel layered rock mass. The method can be used to analyse complicated excavation layouts such as those encountered in room-and-pillar or longwall mining. The method can automatically take into account the effect of the earth's surface. The method offers an economic and efficient solution to stress analysis problems which cannot be adequately modelled using two¬-dimensional methods and for which the expense of three-dimensional finite element or general boundary element analysis cannot be justified.
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