边坡非圆临界滑面之免疫遗传算法研究  

A study on immure genetic algorithm to determine noncircular critical slip surface of slopes

作　　者：梧松[1,2] 李小强[1] 吴玉山[1] 

机构地区：[1]中国科学院武汉岩土力学研究所,湖北武汉430071 [2]宁波大学建筑工程与环境学院,浙江宁波315211

出　　处：《岩土力学》2002年第S1期27-30,36,共5页Rock and Soil Mechanics

摘　　要：基于边坡的斜条分法上限解,使用累加弦长三次样条曲线模拟边坡的滑裂面。在搜索最小安全系数所对应的临界滑面时,利用圆率法修改原始型值点列以达到曲线光顺的目的,以此作为免疫遗传算法中的接种疫苗这一遗传操作提高了各群中的个体适应度,从而最终提高了遗传算法的解题效率。A study on immune genetic algorithm(IGA) to determinate noncircular critical slip surface of slopes is carried out. According to the slope stability analysis by upper bound approach,the slip surface of the slope is simulated by cubic spline curves of accumulation chord.To make the curves smooth,the circle of curvature method is applied to search the critical slip surface corresponding to the minimal safety factor.And circle of curvature method,which is vaccination,is applied to improve the adaptation of the individuals and the efficiency of the solutions.

关 键 词：斜条分法上限解 免疫遗传算法 累加弦长三次样条曲线 圆率法 

分 类 号：TU43[建筑科学—岩土工程]