The main defects in the nonlinear optimization method is that it can not insure to search the overall solver of safety factor, but only search the local minimal solution when the slope soil is not heterogeneous. Based on genetic algorithm, a search method of geotechnical slope stability analysis of the minimum safety coefficient and sliding surface center coordinate system and the radius is built. The feasible solutions to problems can search in a variables search interval, including slippery arc circle coordinates and the radius. Numerical simulation results indicate that the genetic algorithm is used to search for the minimum safety coefficient and theoretical solution of the slope stability is consistent.%非线性优化方法主要缺陷在于当边坡土层为非均质复杂条件时,无法保证搜索到安全系数的全局最小解,而只能搜索到局部极小解.基于遗传算法,建立了搜索岩土边坡稳定性分析最小安全系数和滑移面中心坐标与半径的数值方法.问题的可行解在变量搜索区间内搜索,包括滑弧的圆心坐标和半径.数值模拟结果表明,遗传算法搜索到的边坡稳定最小安全系数与理论解是一致的.
展开▼
