Surficial stebility analysis of unsaturater loess slopes subjected to rainfall infiltration effects

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 > 成都山地所知识仓储（2009年以前）

	Surficial stebility analysis of unsaturater loess slopes subjected to rainfall infiltration effects
	Li Xinpo（李新坡）
刊名	Wuhan University Journal of Natural Sciences
	2006
卷号	11 期号:4 页码:825-828
关键词	slope stability unsaturated soils infiltration matric suction
通讯作者	Wang Chenghua（王成华）
合作状况	其它
英文摘要	According to theory of unsaturated soil strength and Green-Ampt model, an analysis method based on limit equilibrium theory is introduced to consider rainfall infiltration effects in loess slope stability analysis. The relationships between wetting band depth and surficial stability of slopes are analyzed. It is found that the infiltration adds to the weight of the soil and at the same time reduces the shear strength provided by matric suction of the soil. The wetting band depth plays a key role in the stability of slopes. The minimum rainfall intensity and the minimum rainfall duration needed to infiltrate to the wetting front depth are calculated based on the Green-Ampt model. The method in this paper will contribute to the predication of slope stability considering rainfall characteristics.
学科主题	岩土力学
收录类别	EI
资助信息	the Knowledge Innovation Project of Chinese Academy of Sciences (KZCX2-306)
语种	英语
公开日期	2010-11-18
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/2575]
专题	成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前）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
推荐引用方式 GB/T 7714	Li Xinpo. Surficial stebility analysis of unsaturater loess slopes subjected to rainfall infiltration effects[J]. Wuhan University Journal of Natural Sciences,2006,11(4):825-828.
APA	Li Xinpo.(2006).Surficial stebility analysis of unsaturater loess slopes subjected to rainfall infiltration effects.Wuhan University Journal of Natural Sciences,11(4),825-828.
MLA	Li Xinpo."Surficial stebility analysis of unsaturater loess slopes subjected to rainfall infiltration effects".Wuhan University Journal of Natural Sciences 11.4(2006):825-828.