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．
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.
出处
《武汉水利电力大学学报》
CSCD
1994年第3期286-292,共7页
Engineering Journal of Wuhan University
关键词
花岗岩
数值模拟
极限破坏强度
dilatancy
critical stress
true intensity
limiting failure intensity
rockburst
