铁道科学与工程学报2017，Vol.14Issue(3)：507-513,7.
基于无量纲法的应变软化围岩的逐步位移法解析
Dimensionless analysis of numerical stepwise procedure in strain-softening rock mass
摘要
Abstract
On the base of numerical stepwise procedure and the strain-softening behavior model which is proposed by Brown, this study uses the dimensionless analysis method and obtains the dimensionless solution of the stress and displacement in strain-softening rock mass compatible with the generalized Mohr-Coulomb (M–C) failure criterion. Compared with the existing theory, results show that the solution of the stress and displacement in strain-softening rock mass based on dimensionless numerical stepwise procedure are validity and accuracy. The analysis of the supporting force and control coefficient in residual region show that the plastic region will decrease as the supporting force and control coefficient in residual region increase. This conclusion can provide a reference for the design of tunnel support force.关键词
隧道/无量纲分析/应变软化/Mohr-Coulomb准则Key words
tunnel/dimensionless analysis/strain softening/Mohr-Coulomb failure criterion分类
建筑与水利引用本文复制引用
王少辉,邹金锋..基于无量纲法的应变软化围岩的逐步位移法解析[J].铁道科学与工程学报,2017,14(3):507-513,7.基金项目
国家自然科学基金资助项目(51208523) （51208523）
