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利用混沌现象固有的内在结构进行寻优搜索,为土质边坡的稳定性分析提供了一个新思路。将混沌优化算法的全局搜索能力和单纯形法的局部搜索能力结合起来形成单纯形-混沌优化算法,结合简化Bishop法对边坡进行稳定性分析。单纯形-混沌优化算法搜索到的是全局最优解。通过与遗传算法、改进的模拟退火算法的计算结果对比,表明在保证安全系数一定精度的情况下,单纯形-混沌优化算法搜索到的是最危险滑动面。可见,单纯形-混沌优化算法具有较强的全局搜索能力,结果更可靠。
Using the inherent structure of chaos phenomenon to search optimally, it provides a new idea for the stability analysis of soil slope. The global search capability of chaos optimization algorithm is combined with the local search ability of simplex method to form simplex - chaos optimization algorithm. The simplified Bishop method is used to analyze the stability of slope. Simplex - chaos optimization algorithm to search the global optimal solution. Compared with the results of genetic algorithm and improved simulated annealing algorithm, it shows that the simplex - chaos optimization algorithm searches for the most dangerous slip surface with a certain accuracy of safety factor. Can be seen, simplex - chaos optimization algorithm has a strong global search capabilities, the result is more reliable.