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花岗岩的渐进破坏和数值模拟
引用本文:彭守拙,宋一乐,梁毅. 花岗岩的渐进破坏和数值模拟[J]. 武汉大学学报(工学版), 1994, 0(3)
作者姓名:彭守拙  宋一乐  梁毅
作者单位:武汉水利电力大学,清华大学,清华大学水利系
摘    要:研究低侧压下花岗岩的变形后.本文建议用3个特征应力表示花岗岩的渐进破坏,建立了相应判别式,结合扩容本构关系编制了数值模拟程序.结果表明:数值模拟能重现花岗岩的变形特性并揭示其破坏机制.依据特征应力和岩爆情况的相关性.对某工程进行了验算.与实际情况相符.

关 键 词:扩容应力;临界应力;真实强度;极限破坏强度;岩爆

Progressive Failure and Numerical Modeling of Granite
Peng Shouzhuo. Progressive Failure and Numerical Modeling of Granite[J]. Engineering Journal of Wuhan University, 1994, 0(3)
Authors:Peng Shouzhuo
Affiliation:Peng Shouzhuo(Tsing-Hua University)Song Yile(Wuhan University of Hydraulic and Electric Engineering)Liang Yi(Tsing-Hua University)
Abstract:Based on the study of deformation path of granite tinder low lateral thrust,three characteristic stresses and dilataney criterion arc used to describe the gradual failure of granite.The corresponding discriminant is set up and the numerical modeling program compiled.The deformation property and failure mechanism of granite arc revcaled.Aceording to the correlation of characteristic stress and rockburst,the computational results for some projects are conformable to actual state.
Keywords:dilatancy  critical stress  true intensity  limiting failure intensity  rockburst
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