期刊论文

Zhou, K.(zkf1978@126.com)

中文

中南大学学报(自然科学版)

1672-7207

2013

44

4

1666-1671

湖南省自然科学基金资助项目（11JJ4043）； 湖南省科技计划项目（2012FJ4127）；

本校为第一且通讯机构

为了将边坡安全系数强度折减计算方法与J_(RC)-J_(CS)非线性模型相结合,首先,建立节理粗糙度系数J_(RC)节理压缩强度J_(CS)与等效黏结力c和内摩擦角的关系;然后,由Mohr-Coulomb强度折减法间接得到J_(RC) J_(CS)模型下边坡的安全系数,并进行参数影响分析。研究结果表明:J_(RC)-J_(CS)模型边坡安全系数间接计算方法方便可行,具有实用价值;随着J_(RC)和J_(CS)的增大,边坡的安全系数F逐渐增大;F与J_(RC)和J_(CS)的关系均呈非线性特征,可通过指数方程进行拟合,并呈高度相关;J_(CS)越大,F和J_(RC)关系的非线性特征越明显;J_(RC)越大,F受J_(CS)的影响也越大;当J_(CS)较小时,F受J_(CS)影响的灵敏度较高。...

In order to combine the strength reduction calculation method and JRC-JCS nonlinear combined model for calculation of the slope safety factor, firstly, the JRC-JCS parameters and equivalent cohesion and internal friction angle was established; then, by the Mohr-Coulomb strength reduction method, the slope safety factor based on JRC-JCS model was obtained, and parameter influence was analyzed. The results show that the indirect calculation method for safety factor of slope based on JRC-JCS model is feasible, and it has practical value. With the increase of fissure roughness coefficient JRC and ...