A Hydro-Chemo-Mechanical Analysis of the Slip Surface of Landslides in the Three Gorges Area of China

doi:10.1007/978-981-13-0128-5_40

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地灾害与地表过程重点实验室

	A Hydro-Chemo-Mechanical Analysis of the Slip Surface of Landslides in the Three Gorges Area of China
	Gaire Ashok 1; Zhao Yu 2; Hu Liang-Bo 1
	2018
会议日期	MAY 27-30, 2018
会议地点	Tongji Univ, Shanghai
关键词	Landslides Mineral transformation Rainfall Three Gorges
DOI	10.1007/978-981-13-0128-5_40
页码	354-362
国家	PEOPLES R CHINA
英文摘要	Landslides in the Three Gorges area of China are often triggered by rainfalls of significant acidity which potentially lead to wetting effects by rainfall precipitation and mineralogical changes induced by adverse chemical reactions. This paper presents a hydro-chemo-mechanical analysis of slope stability in this context. It first surveys typical landslide events that occurred in the Three Gorges area where mineralogical changes were identified and further simulated in the laboratory; both field and laboratory evidences strongly suggest that these changes contributed to the weathering and strength decline of sliding masses. Subsequently numerical simulations are conducted to investigate possible scenarios of strength evolution due to rainfall induced wetting as well as mineralogical changes. The factor of safety of potential slip surfaces is computed under different combinations of hydrological and chemical scenarios. The results of a parametric study indicate the potential consequences of hydro-mechanical and chemo-mechanical processes that may play an important role in the landslides in the Three Gorges area.
产权排序	2
会议录	PROCEEDINGS OF GEOSHANGHAI 2018 INTERNATIONAL CONFERENCE: GEOENVIRONMENT AND GEOHAZARD
会议录出版者	SPRINGER-VERLAG SINGAPORE PTE LTD
会议录出版地	SINGAPORE
语种	英语
ISBN号	978-981-13-0128-5; 978-981-13-0127-8
WOS记录号	WOS:000465515700040
内容类型	会议论文
源URL	[http://ir.imde.ac.cn/handle/131551/35214]
专题	成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者	Hu Liang-Bo
作者单位	1.University of Toledo, Toledo,USA; 2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences,Chengdu, China
推荐引用方式 GB/T 7714	Gaire Ashok,Zhao Yu,Hu Liang-Bo. A Hydro-Chemo-Mechanical Analysis of the Slip Surface of Landslides in the Three Gorges Area of China[C]. 见:. Tongji Univ, Shanghai. MAY 27-30, 2018.