气候变化领域集成服务门户(CCPortal): Development of three-dimensional failure mechanisms and genetic algorithm for limit analysis of two-layer slopes

CCPortal

DOI	10.1007/s11069-020-04126-1
	Development of three-dimensional failure mechanisms and genetic algorithm for limit analysis of two-layer slopes
	Zheng L.; Li L.; Li J.
发表日期	2020
ISSN	0921030X
起始页码	3181
结束页码	3212
卷号	103 期号:3
英文摘要	This paper develops general three-dimensional kinematically rotational failure mechanisms for two-layer soil slopes, which not only considers the back slope angle but also involves the face-failure, toe-failure and base-failure mechanisms. Although the failure mechanisms are developed for two-layer soil slopes, it is easy to extend for multilayer soil slopes with the framework proposed in this study. Genetic algorithm (GA), which poses the advantages of highly computational efficiency over the traditional loop searching method, is developed to search for the upper bound of the critical height of slope. The proposed mechanisms could perfectly reduce to the failure mechanism of single-layer slopes, and the results generated from the GA algorithm are more critical than those of other available approaches, which indirectly identifies the validity of the current analysis and shows the advantage of the GA algorithm. Parametric studies, which cover a wide range of soil slope angle, back slope angle, relative layer thickness and soil strength as well as the width of restriction, are performed to investigate the transformation of the failure mechanism and the corresponding the critical height of two-layer slopes. © 2020, Springer Nature B.V.
关键词	3D failure mechanism Genetic algorithm Highly computational efficiency Two-layer slope
英文关键词	efficiency measurement; failure mechanism; genetic algorithm; limit analysis; parameter estimation; soil mechanics; three-dimensional modeling
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206054
作者单位	Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, China
推荐引用方式 GB/T 7714	Zheng L.,Li L.,Li J.. Development of three-dimensional failure mechanisms and genetic algorithm for limit analysis of two-layer slopes[J],2020,103(3).
APA	Zheng L.,Li L.,&Li J..(2020).Development of three-dimensional failure mechanisms and genetic algorithm for limit analysis of two-layer slopes.Natural Hazards,103(3).
MLA	Zheng L.,et al."Development of three-dimensional failure mechanisms and genetic algorithm for limit analysis of two-layer slopes".Natural Hazards 103.3(2020).