Stability analysis of multistage homogeneous loess slopes by improved limit equilibrium method

doi:10.16285/j.rsm.2020.0893

IR > 土木工程学院

	Stability analysis of multistage homogeneous loess slopes by improved limit equilibrium method
	Zhang Rui-huan 1,2; Ye Shuai-hua1,2 ; Tao Hui 3
	2021-03-11
发表期刊	Yantu Lixue/Rock and Soil Mechanics
ISSN	1000-7598
卷号	42 期号:3 页码:813-825
摘要	Aiming at the stability analysis of multistage homogeneous loess slopes, a systematic analysis method is proposed. Firstly, the possible failure mechanisms such as slope toe circle and midpoint circle under the overall failure mode and local failure mode of multistage loess slopes are established. Then, based on the improved limit equilibrium method, an analytical solution of slope safety factor corresponding to each failure mechanism is derived, and the optimization method is used to determine the minimum value of safety factor corresponding to each failure mechanism under the overall and the local failure modes. Finally, the flowchart of systematically performing multistage loess slope stability analysis is put forward to determine the minimum safety factor and the critical slip surface. The results of numerical examples show that the proposed method are comparative to the traditional stripe method. The relative deviation of the minimum safety factor calculated by the two methods is less than 5%, and the critical slip surfaces determined by the two methods agree to each other very well. The proposed method in this paper can be widely applied to various multistage homogeneous loess slopes and even single-stage slopes, which is promising for engineering applications. © 2021, Science Press. All right reserved.
关键词	Failure modes Numerical methods Safety factor Sediments Slope stability Critical slip surface Engineering applications Limit equilibrium methods Minimum safety factor Optimization method Relative deviations Stability analysis Systematic analysis method
DOI	10.16285/j.rsm.2020.0893
收录类别	EI ; ESCI
语种	中文
WOS研究方向	Engineering
WOS类目	Engineering, Geological
WOS记录号	WOS:000664854500024
出版者	Biodiversity Research Center, Academia Sinica
EI入藏号	20211510213299
EI主题词	Failure (mechanical)
EI分类号	406.2 Roads and Streets ; 483 Soil Mechanics and Foundations ; 914.1 Accidents and Accident Prevention ; 921.6 Numerical Methods
来源库	WOS
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/148431
专题	土木工程学院
通讯作者	Ye Shuai-hua
作者单位	1.Lanzhou Univ Technol, Key Lab Disaster Mitigat Civil Engn Gansu Prov, Lanzhou 730050, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Western China Civil Engn Disaster Prevent & Mitig, Minist Educ, Lanzhou 730050, Gansu, Peoples R China; 3.Gansu Vocat Coll Architecture, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Zhang Rui-huan,Ye Shuai-hua,Tao Hui. Stability analysis of multistage homogeneous loess slopes by improved limit equilibrium method[J]. Yantu Lixue/Rock and Soil Mechanics,2021,42(3):813-825.
APA	Zhang Rui-huan,Ye Shuai-hua,&Tao Hui.(2021).Stability analysis of multistage homogeneous loess slopes by improved limit equilibrium method.Yantu Lixue/Rock and Soil Mechanics,42(3),813-825.
MLA	Zhang Rui-huan,et al."Stability analysis of multistage homogeneous loess slopes by improved limit equilibrium method".Yantu Lixue/Rock and Soil Mechanics 42.3(2021):813-825.