中文摘要：

利用斜条分和极限分析上限法求解土坡最小安全系数时,所涉及的优化变量个数较常规极限平衡法多一倍,给搜索算法提出了较高要求。针对基本差异进化算法对参数的敏感性且参数不易确定的问题,提出动态和声策略与改进的变异操作算子产生新的个体,形成改进的差异进化算法,在典型算例分析中证明新方法的有效性以及鲁棒性。

英文摘要：

When the inclined slices and upper bound method are used in the slope stability analysis,the number of optimized variables will double that by the general limit equilibrium method.This is a challenge to the search algorithm.To avoid the difficulties in determining parameter values,an improved mutation strategy and dynamic harmony strategy were proposed.This improved differential evolution algorithm was tested by calculating the minimum safety factor of typical soil slopes.A comparative study shows that this new algorithm is efficient and robust.