Risk and size estimation of debris flow caused by storm rainfall in mountain regions

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）

	Risk and size estimation of debris flow caused by storm rainfall in mountain regions
	Cheng, GW
刊名	SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE
	2003-12-01
卷号	46 期号:S 页码:12-19
关键词	debris flow periodicity estimating method
ISSN号	1006-9321
通讯作者	CHENG Genwei
英文摘要	Debris flow is a common disaster in mountain regions. The valley slope, storm rainfall and amassed sand-rock materials in a watershed may influence the types of debris flow. The bursting of debris flow is not a pure random event. Field investigations show the periodicity of its burst, but no directive evidence has been found yet. A risk definition of debris flow is proposed here based upon the accumulation and the starting conditions of loose material in channel. According to this definition, the risk of debris flow is of quasi-periodicity. A formula of risk estimation is derived. Analysis of relative factors reveals the relationship between frequency and size of debris flow. For a debris flow creek, the longer the time interval between two occurrences of debris flows is, the bigger the bursting event will be.
WOS标题词	Science & Technology ; Technology
分类号	P642.23
类目[WOS]	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
研究领域[WOS]	Engineering ; Materials Science
关键词[WOS]	FREQUENCY ; MAGNITUDE
收录类别	SCI
语种	英语
WOS记录号	WOS:000222748100002
公开日期	2010-11-25
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/2627]
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_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Minist Water Resources, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Cheng, GW. Risk and size estimation of debris flow caused by storm rainfall in mountain regions[J]. SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE,2003,46(S):12-19.
APA	Cheng, GW.(2003).Risk and size estimation of debris flow caused by storm rainfall in mountain regions.SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE,46(S),12-19.
MLA	Cheng, GW."Risk and size estimation of debris flow caused by storm rainfall in mountain regions".SCIENCE IN CHINA SERIES E-ENGINEERING & MATERIALS SCIENCE 46.S(2003):12-19.