新型和声搜索算法在土坡稳定分析中的应用

首先提出了一种产生任意滑动面的策略,对可行的滑动面采用Spencer法计算其安全系数;其次改进了基本和声搜索算法的寻优思路,充分利用较优异的和声信息,在每一迭代步中产生多个新和声,然后重新选择优秀的个体进入和声库,构成迭代。该新型和声搜索算法应用于两个复杂土坡的稳定分析中,所得结果与文献中已有结果以及基本和声搜索算法的结果进行了比较,充分证明模拟任意滑动面的策略和改进和声搜索算法是高效的,可以用于复杂土坡稳定问题的分析。

Application of New Version of Harmony Search Algorithm in Slope Stability Analysis

A new procedure of generating general-based slip surface is firstly proposed and the Spencer's method of slices is used to calculate the safety factor for acceptable slip surface.The search procedure of the original harmony search algorithm is secondly improved,such that several new harmonies are obtained by exhaustively utilizing better existing harmonies within each iterative step.The better new harmonies will be included in the harmony memory and the worse harmonies will be excluded from the harmony memory.Two example slopes with complicated topography and loading cases are examined by using the new version of harmony search algorithm,the results obtained from this study are compared with the existing results from the related literatures,and the compared results show that the new procedure is efficient to locate the critical slip surface and that the new version of harmony search algorithm is applicable to the complex slope stability analysis.