Failure Mechanism and Stability Analysis of an Active Landslide in the Xiangjiaba Reservoir Area, Southwest China

doi:10.1007/s12583-017-0753-5

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院页岩气与地质工程重点实验室

	Failure Mechanism and Stability Analysis of an Active Landslide in the Xiangjiaba Reservoir Area, Southwest China
	Iqbal, Javed 1,2; Dai, Fuchu 1; Hong, Min 3; Tu, Xinbin 1; Xie, Qizhi 4
刊名	JOURNAL OF EARTH SCIENCE
	2018-06-01
卷号	29 期号:3 页码:646-661
关键词	active landslide slope stability stability analysis microstructure montmorillonite
ISSN号	1674-487X
DOI	10.1007/s12583-017-0753-5
英文摘要	Dam construction for hydropower development is a very important subject all around the world, especially in developing countries due to energy crises. Filling of reservoir lakes may trigger or reactivate landslides in reservoir area. Active landslides in populated districts in the Xiangjiaba Reservoir area have become a striking problem for residents, local government and construction engineers. The key objective of this study is to analyze the role of reservoir filling and fluctuation in the activation/reactivation of the landslide as well as the mechanism of landslide from microstructures of pre-sheared slip surface. A large active landslide with a total volume of 1.25 Mm(3) at the left margin of Jinsha River in Pingshan County of Sichuan Province, Southwest China, was selected as a case study. Field investigation, field monitoring and laboratory tests were carried out to find out the failure mechanism and the stability of the active landslide. The shear strength test and stability analysis confirm that the water level fluctuations have an adverse effect on slope stability. It is obvious from microstructure analysis that the clay minerals contribute to down-slope movement at micro-scale as well as presence of expansive minerals (e.g., montmorillonite) decreases the strength of soil due to water level rise.
WOS关键词	RESIDUAL SHEAR-STRENGTH ; TESTS ; SOIL
WOS研究方向	Geology
语种	英语
出版者	CHINA UNIV GEOSCIENCES, WUHAN
WOS记录号	WOS:000435629500015
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88173]
专题	地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者	Iqbal, Javed
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Abbottabad Univ Sci & Technol, Dept Earth Sci, Abbottabad 22500, Pakistan 3.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China 4.Hydrochina Zhongnan Engn Corp, Changsha 410014, Hunan, Peoples R China
推荐引用方式 GB/T 7714	Iqbal, Javed,Dai, Fuchu,Hong, Min,et al. Failure Mechanism and Stability Analysis of an Active Landslide in the Xiangjiaba Reservoir Area, Southwest China[J]. JOURNAL OF EARTH SCIENCE,2018,29(3):646-661.
APA	Iqbal, Javed,Dai, Fuchu,Hong, Min,Tu, Xinbin,&Xie, Qizhi.(2018).Failure Mechanism and Stability Analysis of an Active Landslide in the Xiangjiaba Reservoir Area, Southwest China.JOURNAL OF EARTH SCIENCE,29(3),646-661.
MLA	Iqbal, Javed,et al."Failure Mechanism and Stability Analysis of an Active Landslide in the Xiangjiaba Reservoir Area, Southwest China".JOURNAL OF EARTH SCIENCE 29.3(2018):646-661.