Modeling the entire progressive failure process of rock slopes using a strength-based criterion

doi:10.1016/j.compgeo.2020.103726

	Modeling the entire progressive failure process of rock slopes using a strength-based criterion
	Yang, Yongtao 4; Xu, Dongdong 3; Liu, Feng 2; Zheng, Hong 1,4
刊名	COMPUTERS AND GEOTECHNICS
	2020-10-01
卷号	126 页码:12
关键词	Crack propagation Rock slope Progressive failure Numerical manifold method
ISSN号	0266-352X
DOI	10.1016/j.compgeo.2020.103726
英文摘要	To simulate the entire process of the progressive failure of rock slopes, a series of techniques are incorporated into the original NMM (numerical manifold method). To reflect the stress concentration near the crack tip, the Williams' displacement series is adopted to enrich the global displacement function of the NMM. Furthermore, the most recently proposed strength-based LT criterion, which can account for tensile cracks, tensile-shear cracks and compressive-shear cracks, is adopted to determine the crack propagation direction and length. Three typical numerical examples, including a Mode-I crack problem, a Mode-II crack problem and a Brazilian disc problem are adopted to verify the numerical model. The numerical results indicate that the numerical model is capable of accurately simulating the Mode-I crack propagation problem, the mode-II crack propagation problem and the failure process of Brazilian disc. Furthermore, the numerical model is adopted to investigate the entire progressive failure process of two rock slopes. The corresponding results indicate that the numerical model can not only simulate the propagation and coalescence of multiple cracks in rock masses but also the opening/sliding of rock blocks along discontinuities. The proposed numerical model warrants further investigation.
资助项目	Youth Innovation Promotion Association CAS[2020327] ; National Natural Science Foundation of China[51609240] ; National Natural Science Foundation of China[11572009] ; National Natural Science Foundation of China[51538001]
WOS研究方向	Computer Science ; Engineering ; Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000565169300004
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24760]
专题	中科院武汉岩土力学所
通讯作者	Yang, Yongtao
作者单位	1.Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China 2.Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Sch Civil Engn, Tianjin 300072, Peoples R China 3.Changjiang River Sci Res Inst, Key Lab Geotech Mech & Engn, Minist Water Resources, Wuhan 430010, Peoples R China 4.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yongtao,Xu, Dongdong,Liu, Feng,et al. Modeling the entire progressive failure process of rock slopes using a strength-based criterion[J]. COMPUTERS AND GEOTECHNICS,2020,126:12.
APA	Yang, Yongtao,Xu, Dongdong,Liu, Feng,&Zheng, Hong.(2020).Modeling the entire progressive failure process of rock slopes using a strength-based criterion.COMPUTERS AND GEOTECHNICS,126,12.
MLA	Yang, Yongtao,et al."Modeling the entire progressive failure process of rock slopes using a strength-based criterion".COMPUTERS AND GEOTECHNICS 126(2020):12.