确定多级多层边坡临界滑动面的改进策略
Journal of Huazhong University of Science and Technology(Natural Science Edition)（2011）
Abstract
为了提高多级多层边坡临界滑动面搜索的效率,针对多级多层边坡的特点,提出了确定多级多层边坡临界滑动面的改进策略.采用滑出点和滑入点归一策略,将滑出点和滑入点的搜索范围映射到(0,1)区间;采用一系列点的顺序连接来模拟任意滑动面,利用不平衡推力传递系数法计算其安全系数;采用简单易实现的和声搜索算法来确定临界滑动面.对4个典型边坡进行了边坡稳定性分析,结果证明所提策略的搜索效率比常规策略高.
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Key words
c ritical slip surface,factor of safety,multi-stage and multi-layer slope,limit equilibrium method,harmony search algorithm,slope stability
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