Mechanism Analysis of Landslide of a Layered Slope Induced by Drawdown of Water Level

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	Mechanism Analysis of Landslide of a Layered Slope Induced by Drawdown of Water Level
	Zhang JF(张均锋); Li ZG; Qi T
刊名	Science in China Series E-Engineering & Materials Science
	2005
通讯作者邮箱	zhangjf@imech.ac.cn
卷号	48 期号:suppl.页码:136-145
ISSN号	1006-9321
通讯作者	Zhang, JF (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
中文摘要	The frequent drawdown of water level of Yangtze River will greatly influence the stability of the widely existing slopes in the Three Gorges reservoir zone, especially those layered ones. Apart from the fluctuating speed of water level, the different geological materials will also play important roles in the failure of slopes. Thus, it must be first to study the mechanism of such a landslide caused by drawdown of water level.A new experimental setup is designed to study the performance of a layered slope under the drawdown of water level. The pattern of landslide of a layered slope induced by drawdown of water level has been explored by means of simulating experiments. The influence of fluctuating speed of water level on the stability of the layered slope is probed,especially the whole process of deformation and development of landslide of the slope versus time. The experimental results show that the slope is stable during the water level rising, and the sliding body occurs in the upper layer of the slope under a certain drawdown speed of water level. In the process of slope failure, some new small sliding body will develop on the main sliding body, and the result is that they speed up the disassembly of the whole slope.Based on the simulating experiment on landslide of a layered slope induced by drawdown of water level, the stress and displacement field of the slope are calculated.The seepage velocity, the pore water pressure, and the gradient of pore water head are also calculated for the whole process of drawdown of water level. The computing results are in good agreement with the experimental results. Accordingly, the mechanism of deformation and landslide of the layered slope induced by drawdown of water level is analyzed. It may provide basis for treating this kind of layered slopes in practical engineering.
学科主题	力学
类目[WOS]	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
研究领域[WOS]	Engineering ; Materials Science
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000234924800012
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/17334]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Zhang JF,Li ZG,Qi T. Mechanism Analysis of Landslide of a Layered Slope Induced by Drawdown of Water Level[J]. Science in China Series E-Engineering & Materials Science,2005,48(suppl.):136-145.
APA	张均锋,Li ZG,&Qi T.(2005).Mechanism Analysis of Landslide of a Layered Slope Induced by Drawdown of Water Level.Science in China Series E-Engineering & Materials Science,48(suppl.),136-145.
MLA	张均锋,et al."Mechanism Analysis of Landslide of a Layered Slope Induced by Drawdown of Water Level".Science in China Series E-Engineering & Materials Science 48.suppl.(2005):136-145.