岩土力学Issue(z1)：359-364,6.
不同的层状岩体抗剪强度表达式计算效果的有限元分析
Finite element analyses of computational effects with of different shear strength expressions for layered rock mass
摘要
Abstract
In order to investigate the effects of different anisotropic shearing strength expressions on numerical computation results, the two-dimensional elastoplastic finite element analysis were carried out for an assumed rectangular underground cave in a layered rock mass for three cases, in which the empirical formulae for internal friction coefficient and cohesion of material which change with directions suggested by the first author and S. Pietruszczak were applied respectively. The stresses, displacements and plastic zones in the surrounding rock mass are compared. The results show: the computational accuracy of using the empirical expressions established by the first author matches basically with that of using the first-order approximations given by Pietruszczak; but there is a comparatively obvious difference between the computational accuracies of using author’s empirical expressions and Pietruszczak ‘s 2nd order approximations.关键词
层状岩体/抗剪强度表达式/计算效果/有限元分析Key words
layered rock mass/shearing strength expression/computation effect/finite element analysis分类
建筑与水利引用本文复制引用
张玉军,张维庆..不同的层状岩体抗剪强度表达式计算效果的有限元分析[J].岩土力学,2014,(z1):359-364,6.基金项目
国家重点基础研究发展计划（973）资助（No.2010CB732101）；国家自然科学基金资助（No.51079145，No.51379201）。 （）
