摘要
采用动态规划和随机有限元相结合,分析边坡可靠性问题。根据有限元程序AN-SYS蒙特卡洛LHS抽样法进行模拟得到单元节点可靠性指标,用动态规划法搜索出临界滑动面,将与之对应的最小可靠度指标作为边坡的整体可靠度指标。数值算例分析说明了该方法的有效性和优越性。
The dynamic programming method combined with the stochastic FEM is proposed to analyze the slope reliability problems. The reliability of element nodes are obtained from the FEM program ANSYS Mente Carlo Latin Hypercube Sampling simulation and the critical slip surface is searched by the dynamic programming method. The global minimum reliability of slip surface can be found by the critical slip surface. A numerical example is analyzed to show the feasibility of the proposed method.
出处
《地下空间与工程学报》
CSCD
2007年第3期564-567,共4页
Chinese Journal of Underground Space and Engineering
关键词
随机有限元
蒙特卡洛法
动态规划
边坡可靠性分析
stochastic finite element
Monte Carlo method
dynamic programming method
slope reliability analysis
