Stability analysis and design charts for over-dip rock slope against bi-planar sliding

doi:10.1016/j.enggeo.2020.105732

	Stability analysis and design charts for over-dip rock slope against bi-planar sliding
	Chen, Longlong 2; Zhang, Wengang 1,2,3; Zheng, Yun 4; Gu, Dongming 1,2,3; Wang, Lin 1,2,3
刊名	ENGINEERING GEOLOGY
	2020-09-20
卷号	275 页码:20
关键词	Over-dip rock slope Stability Bi-planar sliding Equivalent slope mode Design chart
ISSN号	0013-7952
DOI	10.1016/j.enggeo.2020.105732
英文摘要	Bi-planar sliding is one of the main instabilities in over dip rock slope. The geometry and strength of the bi-planar sliding surface comprised of two sets of cross-discontinuities play an important role in slope stability assessment. However, few studies had been conducted to systematically investigate the influences of them. In this study, three categories of failure modes related to the failure region, namely, the shallow, intermediate and deep, are proposed. Corrected Implicit Transfer Coefficient Method (CITCM) with the modified sliding surface is proposed as an alternative to the Limited Equilibrium Method (LEM) for calculating the slope factor of safety (Fos). The change patterns of slope stability are derived from the Fos values calculated via CITCM considering different scenarios of geometrical and mechanical parameters of the critical bi-planar sliding surface. The equivalent slope model for the overlap rock slope under bi-planar sliding is proposed to explain slope stability change patterns reasonably. The design charts for preliminary slope stability assessment are presented in the over-dip rock against bi-planar sliding. Finally, compared with other traditional Limited Equilibrium (LE) approaches, case history engineering applications validate the proposed design charts in calculating Fos, determining the critical sliding surface, and recognizing the failure mode is more effectively.
资助项目	National Key R&D Program of China[2019YFC1509600] ; Chongqing Postdoctoral Science Foundation[cstc2019jcyj-bshX0032] ; National Natural Science Foundation of China[11602284] ; Chongqing Engineering Research Center of Disaster Prevention & Control for Banks and Structures in Three Gorges Reservoir Area[SXAPGC18ZD01]
WOS研究方向	Engineering ; Geology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000560722900007
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24721]
专题	中科院武汉岩土力学所
通讯作者	Zhang, Wengang
作者单位	1.Natl Joint Engn Res Ctr Geohazards Prevent Reserv, Chongqing 400045, Peoples R China 2.Chongqing Univ, Sch Civil Engn, Chongqing 400045, Peoples R China 3.Chongqing Univ, Key Lab New Technol Construct Cities Mt Area, Educ Minist, Chongqing 400045, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Chen, Longlong,Zhang, Wengang,Zheng, Yun,et al. Stability analysis and design charts for over-dip rock slope against bi-planar sliding[J]. ENGINEERING GEOLOGY,2020,275:20.
APA	Chen, Longlong,Zhang, Wengang,Zheng, Yun,Gu, Dongming,&Wang, Lin.(2020).Stability analysis and design charts for over-dip rock slope against bi-planar sliding.ENGINEERING GEOLOGY,275,20.
MLA	Chen, Longlong,et al."Stability analysis and design charts for over-dip rock slope against bi-planar sliding".ENGINEERING GEOLOGY 275(2020):20.