摘要
本文针对含断续节理天然岩体灌浆前后不同节理接触度,运用断裂力学理论建立相应的岩体抗剪强度分析模型。并用有限单元法研究了节理面不同接触度条件下岩体沿节理面方向综合抗剪强度参数的变化,从而定量地给出了灌浆效果与岩体强度的相互关系。
In accordance with the different void degrees in disvisional planes of rock mass wrth intermittent joins before grouting and after grouting, fracture machanics theory is used to develop corresponding analytical models of the shearing strength of this rock mass. The parameters of the comprehensive shearing strength of this rock mass along the diriction of joint planes varying with different contact conditions of divisional planes have been also sludied by means of finite element analysis, The relationship between the grouting affect and shearing stremgth of this rock mass is quantitately derived in this paper.
关键词
脆性岩体
断裂力学
灌浆
岩体强度
grouting effect, intermittent joints, fracture mechanics finite element
