摘要
在基于圆弧滑动面假定的边坡稳定性分析中 ,应用无记忆最小二乘拟牛顿法搜索边坡最危险滑动面及相应的最小安全系数 ,作滑动面搜索时不必给定圆心搜索范围 ,由最优化方法自动地搜索出最危险的滑动面 ,从而提高了边坡稳定性分析的可靠性。该方法还可用于其他优化问题 ,它不必记忆迭代矩阵 ,大大地减少了贮存量 ,提高了计算效率。
In the slope stability analysis based on the assumption of circular slip surface, the memoryless least square quasi Newton method is used to search the most dangerous slip surface and the corresponding minimum safety factor. No need is for the range of circle center to search slip surface. The most dangerous slip surface is automatically searched out by the optimization algorithm. Therefore, the reliability is raised for the slope stability analysis. The new method can also be used in other optimization problem. Since no need is for the iteration matrix stored, the new method reduces the storage and raises the computation efficiency greatly.SLOPES
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第1期34-38,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
广东省自然科学基金 (2 0 0 0 0 0 38)
广州市城市建设与发展基金 (980 0 0 4 )
关键词
无记忆拟牛顿法
边坡
稳定性
最危险滑动面
最小安全系数
memoryless quasi Newton method, slope stability, the most dangerous slip surface, the minimum safety factor
