Assessing the stability of rock slopes with respect to flexural toppling failure using a limit equilibrium model and genetic algorithm

doi:10.1016/j.compgeo.2020.103619

	Assessing the stability of rock slopes with respect to flexural toppling failure using a limit equilibrium model and genetic algorithm
	Zheng, Yun 1; Chen, Congxin 1; Meng, Fei 1,2; Liu, Tingting 1,3; Xia, Kaizong 1
刊名	COMPUTERS AND GEOTECHNICS
	2020-08-01
卷号	124 页码:10
关键词	Rock slopes Toppling failure Failure surface Limit equilibrium method Genetic algorithm
ISSN号	0266-352X
DOI	10.1016/j.compgeo.2020.103619
英文摘要	Flexural toppling is a common mode of instability of anti-dip bedding rock slopes. However, there is currently no theoretical method available for determining the failure surface associated with this kind of failure. In this work, a limit equilibrium model combined with a genetic algorithm (LEM-GA) method was proposed for predicting the safety factors and failure surfaces of rock slopes subject to flexural toppling failure. A MATLAB program was subsequently developed to implement the proposed method which takes the geometric and mechanical parameters of the slope as inputs and the safety factor and potential failure surface associated with the slope as outputs. Two WA models were used to check the validity of the LEM-GA method. The correspondence between the calculated and experimental results is good which demonstrates the feasibility of using the LEM-GA method to predict the stability of this kind of slope. The LEM-GA method is also extended to investigate the effect of non-uniform joint spacing on slope stability. The results indicate that when an average joint spacing is used to assess the stability of a non-uniform slope, the predictions made are conservative and err on the safe side. The LEM-GA method proposed in this work offers a sound basis for evaluating the stability of anti-dip bedding rock slopes and improving their design.
资助项目	National Natural Science Foundation of China[11602284] ; National Natural Science Foundation of China[41807280] ; Natural Science Foundation of Hubei province, China[2017CFB508] ; Natural Science Foundation of Hubei province, China[2018CFB450] ; Open Research Fund of the State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z015005] ; Open Research Fund of the State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z018009]
WOS研究方向	Computer Science ; Engineering ; Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000541150700019
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24429]
专题	中科院武汉岩土力学所
通讯作者	Meng, Fei; Liu, Tingting
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Swinburne Univ Technol, Fac Sci Engn & Technol, Hawthorn, Vic 3122, Australia 3.Wuhan Univ Technol, Key Lab Roadway Bridge & Struct Engn, Wuhan 430070, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Yun,Chen, Congxin,Meng, Fei,et al. Assessing the stability of rock slopes with respect to flexural toppling failure using a limit equilibrium model and genetic algorithm[J]. COMPUTERS AND GEOTECHNICS,2020,124:10.
APA	Zheng, Yun,Chen, Congxin,Meng, Fei,Liu, Tingting,&Xia, Kaizong.(2020).Assessing the stability of rock slopes with respect to flexural toppling failure using a limit equilibrium model and genetic algorithm.COMPUTERS AND GEOTECHNICS,124,10.
MLA	Zheng, Yun,et al."Assessing the stability of rock slopes with respect to flexural toppling failure using a limit equilibrium model and genetic algorithm".COMPUTERS AND GEOTECHNICS 124(2020):10.