期刊论文

Liu, Z.(liuziyoucsu@126.com)

中文

中南大学学报(自然科学版)

1672-7207

2013

44

5

2088-2092

国家自然科学基金资助项目（50775053）；

本校为第一且通讯机构

为了采用极限平衡法计算节理粗糙度系数J_(RC)与节理压缩强度为J_(CS)的岩质边坡安全系数,建立J_(RC)-J_(CS)准则下简化Bishop极限平衡计算公式,并分析J_(RC)-J_(CS)参数对于边坡安全系数的影响。研究结果表明:随着J_(RC)的增大,黏结力c和内摩擦角-呈非线性增大,并且黏结力受影响的敏感度增大,而内摩擦角受影响的敏感度降低;黏结力c和内摩擦角-均随J_(CS)的增大呈非线性增大;随着J_(RC)和J_(CS)的增大,边坡的安全系数F逐渐增大,J_(RC)越大,节理面越粗糙,岩体的稳定性越高;J_(CS)越大,岩石颗粒排列得越紧密,岩体的压缩强度越大,岩体的稳定性越高,边坡整体安全系数也越大;F与J_(RC)和J_(CS)的关系...

In order to use limit equilibrium method to calculate the safety factor of the slope based on JRC-JCS model, the simplified Bishop limit equilibrium method for safety factor of the JRC-JCS slope calculation was established, and the influence of JRC-JCS parameters on slope safety factor was studied. The results show that cohesion c and internal friction angle φincrease with the nonlinear increase of JRC. With the increase of JRC, cohesion force sensitive influenced by JRC increases while that of the friction angle decreases. Cohesive force and internal friction angle increase nonlinearly wi...