Formation mechanism, deformation characteristics and stability analysis of Wujiang landslide near Centianhe reservoir dam

doi:10.1016/j.enggeo.2016.06.025

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	Formation mechanism, deformation characteristics and stability analysis of Wujiang landslide near Centianhe reservoir dam
	Sun, Guanhua 2; Huang, Yaoying 1; Li, Chunguang 2; Zheng, Hong 2
刊名	ENGINEERING GEOLOGY
	2016
卷号	211 页码:27-38
关键词	Landslide Stability Factor of safety Deformation characteristics
ISSN号	0013-7952
DOI	10.1016/j.enggeo.2016.06.025
英文摘要	Wujiang landslide, which is an ancient landslide, has a total volume of approximately 1.327 x 10(7) m(3). Its downstream boundary is approximately 300 and 590 m away from the new dam and axis of the dam, respectively, while the upstream boundary is approximately 1000 m away from the dam. The relative relief of the landslide ranges from 380 to 480 m with moderately steep terrain and well-developed gullies. In this study, we have investigated the geotechnical characteristics of the landslide and analyzed its formation conditions and evolution process. We conclude that the landslide can be classified into the bedrock crack-bedding slip mode and is an ancient landslide where creep deformation still exists although it has undergone repeated sliding evolution. We have further analyzed its deformation characteristics: the landslide is currently in a slow creep deformation state, with the deformation larger at the leading edge and smaller at the trailing edge. Hence, the disintegration of the superficial part or the slip of the shallow-upper part of the landslide is likely to occur. Conversely, the possibility of the whole slope sliding down is relatively low. Finally, based on Morgenstern-Price assumptions, we have developed a rigorous three-dimensional analysis method that can analyze the stability and identify the dominant sliding direction of the landslide during the impoundment of the reservoir. (C) 2016 Elsevier B.V. All rights reserved.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000382347500004
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3916]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.China Three Gorges Univ, Coll Hydraul & Environm Engn 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ;
推荐引用方式 GB/T 7714	Sun, Guanhua,Huang, Yaoying,Li, Chunguang,et al. Formation mechanism, deformation characteristics and stability analysis of Wujiang landslide near Centianhe reservoir dam[J]. ENGINEERING GEOLOGY,2016,211:27-38.
APA	Sun, Guanhua,Huang, Yaoying,Li, Chunguang,&Zheng, Hong.(2016).Formation mechanism, deformation characteristics and stability analysis of Wujiang landslide near Centianhe reservoir dam.ENGINEERING GEOLOGY,211,27-38.
MLA	Sun, Guanhua,et al."Formation mechanism, deformation characteristics and stability analysis of Wujiang landslide near Centianhe reservoir dam".ENGINEERING GEOLOGY 211(2016):27-38.