Stability analysis of landslides using BEM and variational inequality based contact model

doi:10.1016/j.compgeo.2020.103575

	Stability analysis of landslides using BEM and variational inequality based contact model
	Nie, Zhibao 2; Zhang, Zhihong 2; Zheng, Hong 1,2; Lin, Shan 2
刊名	COMPUTERS AND GEOTECHNICS
	2020-07-01
卷号	123 页码:7
关键词	Slope stability analysis Strength reduction method Boundary element method Variational inequality Contact problems
ISSN号	0266-352X
DOI	10.1016/j.compgeo.2020.103575
英文摘要	Since the stability of a landslide is mainly controlled by the strength properties of the slip band rather than the sliding body, naturally the boundary element method is an excellent tool for the stability analysis of the landslide, where the slip surface is regarded as a contact boundary between the sliding body and the slip bed. By casting the contact problem into a mixed variational inequality problem (MiVIP), the convergence in dealing with contact nonlinearity has been proved significantly improved. In this study, the strength reduction technique is applied to bring the slope to the limit equilibrium state. A so-called critical element on the slip surface is always fixed to maintain the convergence during the strength reduction. Based on the fact that the strength redundancy of the critical element vanishes at the limit equilibrium state, the method of bisection is designed to find out the factor of safety. A typical example and an engineering bank slope are analyzed to demonstrate the numerical properties of the proposed procedure.
资助项目	National Natural Science Foundation of China[51538001] ; National Natural Science Foundation of China[51621006]
WOS研究方向	Computer Science ; Engineering ; Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000535700900023
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24266]
专题	中科院武汉岩土力学所
通讯作者	Zheng, Hong
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
推荐引用方式 GB/T 7714	Nie, Zhibao,Zhang, Zhihong,Zheng, Hong,et al. Stability analysis of landslides using BEM and variational inequality based contact model[J]. COMPUTERS AND GEOTECHNICS,2020,123:7.
APA	Nie, Zhibao,Zhang, Zhihong,Zheng, Hong,&Lin, Shan.(2020).Stability analysis of landslides using BEM and variational inequality based contact model.COMPUTERS AND GEOTECHNICS,123,7.
MLA	Nie, Zhibao,et al."Stability analysis of landslides using BEM and variational inequality based contact model".COMPUTERS AND GEOTECHNICS 123(2020):7.