Author(s): XU Fe, XU Wei-ya, WEN Sen, LIU Zao-bao, ZHAO Yan-xi
Pages: 3651-3655
Year: 2010 Issue:  11
Journal: Rock and Soil Mechanics
Keyword:  围岩; 粒子群优化; 投影寻踪; 稳定性; 评价; 逻辑斯谛曲线;
Abstract: 围岩的稳定性评价是一个复杂的不确定系统问题.结合投影寻踪方法、粒子群算法和逻辑斯谛曲线函数,建立了围岩稳定性评价的粒子群优化投影寻踪(projection pursuit based on particle swarm optimization,PSO-PP)模型.该模型一方面采用粒子群算法优化投影指标函数及逻辑斯谛曲线函数参数,确保了模型的准确性;另一方面利用逻辑斯谛曲线函数建立投影值与经验等级...