【摘 要】
：
This paper aims to determine the strength properties of jointed rock masses by means of the homogenization method.To reflect the microstructure of jointed rock
【机 构】
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Department of Civil Engineering,Department of Engineering Mechanics
【基金项目】
：
the Natural Science Foundation of China;NCUT Financial
论文部分内容阅读
This paper aims to determine the strength properties of jointed rock masses by means of the homogenization method.To reflect the microstructure of jointed rock masses,a representative element volume (REV) is selected.Assumning being rigid and perfectly plastic and utilizing the Mohr-Coulomb yield criterion for rock and joints,an upper bound limit analysis method is proposed based on the homogenization theory.By using the finite element method and Goodman joint element,a nonlinear mathematical programming with equality constraints is formulated,which can be solved by.a direct iterative algorithm.Numerical results show the strength of jointed rock masses behaves anisotropy with different joint directions.This method presents an effective tool for the strength analysis of jointed rock masses.
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