摘要
通过输入埃而森特罗波(EL Centro)地震波对边坡进行有限元瞬态分析,得到边坡在各个时刻的应力值.然后利用Mohr-Coulomb破坏准则,得到对应某一起始点的滑动面.并用瑞典条分法计算边坡安全系数的公式,使其作为目标函数,经过人工蜂群算法进行优化得到起始点,从而确定了滑动面并计算出边坡安全系数.最后,对各个时刻的边坡安全系数进行统计分析,得到边坡失效概率.
Using EL Centro seismic wave and transient analysis to simulate the slope stability, the stress state of slope at every moment can be obtained. And then Mohr-Coulomb failure criterion is used to determine the slip surface that corresponds to an initial point. Based on Sweden method of slices, the formula of the slope safety factor can be used as an objective function to search the initial point. This search process can be optimized by the artificial bee colony algorithm, which can find out the point, determine the slip surface and compute the safety factor. Finally, the statistic analysis of slope safety factors at every moment can be performed to calculate the failure probability of a slope.
出处
《武汉大学学报(工学版)》
CAS
CSCD
北大核心
2016年第5期796-800,共5页
Engineering Journal of Wuhan University
基金
湖北省自然科学基金(编号:2012FKC14201)
湖北省教育厅自然科学基金重点项目(编号:D20134401)
湖北理工学院优秀中青年创新团队计划项目(编号:Y0008)
关键词
地震可靠度
边坡稳定
人工蜂群算法
安全系数
seismic reliability
slope stability
artificial bee colony algorithm
safety factor