摘要
本文首先叙述了孔隙流体对固体变形局部化影响的若干研究进展 ,并利用三维连续体快速拉格朗日分析 ,模拟了孔隙压力对岩体变形局部化应变场 (剪切带 )的影响。数值模拟结果表明 ,孔隙压力对变形局部化应变场有较大影响 ,随着孔隙压力的增加剪切带趋于不明显 ,岩体试件倾向于发生拉伸破坏。
Firstly,a series of advance on effect of pore pressure on strain localization of solid has been introduced in this paper Secondly,the effect of pore pressure on strain localization(shear bands)of the rock has been modeled based upon fast Lagrangian analysis.The results modeled show that the pore pressure has an great influence on the strain localization;The increase of pore pressure prevents shear bands from developing fully and causes tension failure of rock sample.
出处
《地质力学学报》
CSCD
2001年第2期139-143,共5页
Journal of Geomechanics
基金
20 0 0年国家教委骨干青年教师项目!"地震及水渗流作用下大型岩体工程稳定性研究"
