水利学报2016，Vol.47Issue(2)：219-228,10.DOI:10.13243/j.cnki.slxb.20150517
基于微粒群算法的重力坝坝基多滑面稳定可靠度分析
Reliability analysis on stabtility of gravity dam foundation over multiple sliding planes using PSO
摘要
Abstract
Instability of foundation over multiple sliding planes is a general case occurring in bedrock un⁃der most engineering geological conditions of concrete gravity dams. But there are little literatures on exten⁃sively researching about this case. For simplication the instability probability was commonly evaluated using models of single or dual sliding plane(s) for the dam foundation. Base on the geometric interpretation of the realiability index, the reliability calculation can be treated as mathematical optimization, so the particle swarm optimization (PSO) can be used logically. A reliability calculating method on the basis of PSO is provided in the paper, which is applied to evaluate the stabiliy reliability index of concrete gravity dam foundation over multiple sliding planes. By camparison with the calculated results by other methods for three testing examples and an actural dam, the method is verified to be accurate, efficient and rational, and can be utilized to the practical complex engineering, for which the performance function for reliablity analysis is nonlinear and implicit. So the method will benefit the further research and provide good techni⁃cal support on the stabiliy safety assessment and structrual design of gravity dam.关键词
混凝土重力坝/可靠度/微粒群算法/深层抗滑稳定/多滑面Key words
concrete gravity dam/reliability/particle swarm optimization/stability against sliding along deep-seated plane/multiple sliding planes分类
水利科学引用本文复制引用
王刚,马震岳,秦净净,兰钦..基于微粒群算法的重力坝坝基多滑面稳定可靠度分析[J].水利学报,2016,47(2):219-228,10.基金项目
国家自然科学基金青年基金项目 （）
