Assessing the Stability of Rock Slopes with Respect to Block-Flexure Toppling Failure Using a Force-Transfer Model and Genetic Algorithm

doi:10.1007/s00603-020-02122-2

	Assessing the Stability of Rock Slopes with Respect to Block-Flexure Toppling Failure Using a Force-Transfer Model and Genetic Algorithm
	Zheng, Yun 2; Chen, Congxin 2; Meng, Fei 2,3; Zhang, Haina 2; Xia, Kaizong 2; Chen, Xiaobin 1
刊名	ROCK MECHANICS AND ROCK ENGINEERING
	2020-04-29
页码	13
关键词	Rock slope Block-flexure toppling Limit equilibrium method Genetic algorithm Safety factor
ISSN号	0723-2632
DOI	10.1007/s00603-020-02122-2
英文摘要	Block-flexure toppling is the commonest type of failure in anti-dip bedding rock slopes. In this work, a new model called the force-transfer model (FTM) for this kind of failure is proposed, which is based on cantilever beams and limit equilibrium theory. A genetic algorithm (GA) was further employed to predict the safety factor and failure surface of the rock slope. A centrifuge test was also conducted to check the feasibility of using the combined FTM-GA method to model block-flexure toppling failure. The centrifugal results showed that a complex failure surface was produced in a slope undergoing block-flexure toppling. The failure surface is stepped and has a step height approximately equal to the spacing of the cross joints. Comparing these results with the theoretical ones shows that it is eminently feasible to use the FTM-GA method to analyze the stability of slopes liable to undergo block-flexure toppling failure. Moreover, the safety factor (i.e., failure load in the centrifugal test) and failure surface of the slope can be accurately determined using the new method. The newly proposed method can, therefore, be used as a theoretical tool for evaluating and designing anti-dip bedding rock slopes.
资助项目	National Natural Science Foundation of China[11602284] ; National Natural Science Foundation of China[11472293] ; 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[Z018009]
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000529843300002
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24094]
专题	中科院武汉岩土力学所
通讯作者	Meng, Fei; Zhang, Haina
作者单位	1.Cent South Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 3.Swinburne Univ Technol, Fac Sci Engn & Technol, Hawthorn, Vic 3122, Australia
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 Block-Flexure Toppling Failure Using a Force-Transfer Model and Genetic Algorithm[J]. ROCK MECHANICS AND ROCK ENGINEERING,2020:13.
APA	Zheng, Yun,Chen, Congxin,Meng, Fei,Zhang, Haina,Xia, Kaizong,&Chen, Xiaobin.(2020).Assessing the Stability of Rock Slopes with Respect to Block-Flexure Toppling Failure Using a Force-Transfer Model and Genetic Algorithm.ROCK MECHANICS AND ROCK ENGINEERING,13.
MLA	Zheng, Yun,et al."Assessing the Stability of Rock Slopes with Respect to Block-Flexure Toppling Failure Using a Force-Transfer Model and Genetic Algorithm".ROCK MECHANICS AND ROCK ENGINEERING (2020):13.