Search for circular and noncircular critical slip surfaces in slope stability analysis by hybrid genetic algorithm  

作　　者：朱剑锋 陈昌富 

机构地区：[1]Faculty of Architectural Civil Engineering and Environment,Ningbo University [2]Institute of Geotechnical Engineering,Hunan University

出　　处：《Journal of Central South University》2014年第1期387-397,共11页中南大学学报（英文版）

基　　金：Project(50878082)supported by the National Natural Science Foundation of China;Project(2012C21058)supported by the Public Welfare Technology Application Research of Zhejiang Province,China

摘　　要：A local improvement procedure based on tabu search(TS) was incorporated into a basic genetic algorithm(GA) and a global optimal algorithm,i.e.,hybrid genetic algorithm(HGA) approach was used to search the circular and noncircular slip surfaces associated with their minimum safety factors.The slope safety factors of circular and noncircular critical slip surfaces were calculated by the simplified Bishop method and an improved Morgenstern-Price method which can be conveniently programmed,respectively.Comparisons with other methods were made which indicate the high efficiency and accuracy of the HGA approach.The HGA approach was used to calculate one case example and the results demonstrated its applicability to practical engineering.A local improvement procedure based on tabu search （TS） was incorporated into a basic genetic algorithm （GA） and a global optimal algorithm, i.e., hybrid genetic algorithm （HGA） approach was used to search the circular and noncircular slip surfaces associated with their minimum safety factors. The slope safety factors of circular and noncircular critical slip surfaces were calculated by the simplified Bishop method and an improved Morgenstern-Price method which can be conveniently programmed, respectively. Comparisons with other methods were made which indicate the high efficiency and accuracy of the HGA approach. The HGA approach was used to calculate one case example and the results demonstrated its applicability to practical engineering.

关 键 词：SLOPE STABILITY genetic algorithm tabu search algorithm safety factor 

分 类 号：TU43[建筑科学—岩土工程]