IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Alternative TitleQuasi-Paeriodicity of Debris Flow Bursting
Corresponding Author程根伟
Source Publication第三届海峡两岸山地灾害与环境保育学术研讨会 ; 海峡两岸山地灾害与环境保育研究第三卷
Conference Date2002-7-26
Conference Place云南昆明
Funding Organization中国水土保持学会


Other Abstract

Debris flow is the disaster in mountain region. The valley slope, storm rainfall and amassed sand-rock materials in a watershed may influence the type of debris flow. The bursting of debris is not a pure random event. Field inverstigations show that debris flow bursts periodically, although the directive evidence has not been found yet. The author propses a risk definition of debris flow based upon the accumulation and its starting conditions of loose material in channel. According to this definition, the destroying risk of debris flow is of the quasi-periodicity. A formula of this risk estimation is derived. The analysis of relative factors reveals the relationship of frequency and size of debris flow. For a debris flow creek, the longer the time interval between two occurrence of debris flows is, the bigger the bursting event may be.

Keyword泥石流 暴发周期 估计方法
Subject AreaP642.23
Document Type会议论文
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
程根伟. 泥石流暴发准周期性探讨[C],2002:66-72.
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11-泥石流暴发准周期性探讨.pdf(260KB)会议论文 开放获取CC BY-NC-SAView Application Full Text
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