Physical modelling and numerical analysis of slope instability subjected to reservoir impoundment of the Three Gorges

doi:10.1007/s12665-018-7321-x

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Physical modelling and numerical analysis of slope instability subjected to reservoir impoundment of the Three Gorges
	Li, Shaojun 1; Sun, Qiancheng 1,2; Zhang, Zhenhua 3; Luo, Xianqi 4
刊名	ENVIRONMENTAL EARTH SCIENCES
	2018
卷号	77 期号:4 页码:-
关键词	Soil slope Instability Reservoir impoundment Centrifuge modelling
ISSN号	1866-6280
DOI	10.1007/s12665-018-7321-x
英文摘要	Increasing attention is being given to investigations of failure mechanisms of unstable slopes influenced by water fluctuation during impoundment, such as in the case of reservoir landslides surrounding the Three Gorges, China. In this paper, two typical soil slopes with thin and thick rear edges are considered in a systematic investigation of the large-scale landslides triggered by reservoir impoundment. Physical model test, centrifugal modelling and numerical analysis are presented; these show the deformation evolution process and are aimed at obtaining the physical and mechanical laws that govern deformation and failure of such typical slopes during increasing water levels in a reservoir. The results indicate that deformation of the soil slopes triggered by impoundment can be divided into three stages: the rapid deformation stage, the slow development stage and the convergence creep stage. Moreover, deformation increases rapidly in the initial water level increase, and deformation growth slows with continued increase in water levels. Although the failure modes of the two typical slopes were not identical, the deformation in both started when soil softening occurred, suggesting that the initial phase of water level rise is likely the most dangerous phase with respect to soil slope stability. The results are likely to provide a foundation for further disaster mechanism studies, as well as disaster prevention and reinforcement design of reservoir soil slopes.
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000426755300033
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4223]
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.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Univ Chinese Acad Sci ; 3.Hefei Univ Technol, Sch Civil Engn; 4.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn
推荐引用方式 GB/T 7714	Li, Shaojun,Sun, Qiancheng,Zhang, Zhenhua,et al. Physical modelling and numerical analysis of slope instability subjected to reservoir impoundment of the Three Gorges[J]. ENVIRONMENTAL EARTH SCIENCES,2018,77(4):-.
APA	Li, Shaojun,Sun, Qiancheng,Zhang, Zhenhua,&Luo, Xianqi.(2018).Physical modelling and numerical analysis of slope instability subjected to reservoir impoundment of the Three Gorges.ENVIRONMENTAL EARTH SCIENCES,77(4),-.
MLA	Li, Shaojun,et al."Physical modelling and numerical analysis of slope instability subjected to reservoir impoundment of the Three Gorges".ENVIRONMENTAL EARTH SCIENCES 77.4(2018):-.