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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.
In order to improve the efficiency of searching the critical slip surface of multi-level and multi-layer slopes, aiming at the characteristics of multi-level multi-layer slope, an improved strategy to determine the critical slip surface of multi-level and multi-layer slope is proposed. A strategy is to map the search range of the slide-out point and the slide-in point to the (0,1) interval. A series of points are used to simulate an arbitrary sliding surface, and the coefficient of safety is calculated by using unbalanced thrust transfer coefficient method. Easy-to-use harmony search algorithm to determine the critical slip surface.The slope stability analysis of four typical slopes shows that the proposed strategy has higher search efficiency than the conventional strategy.