IMHE OpenIR  > 山地灾害与地表过程重点实验室
Probability distribution of debris flow depth and its implication in risk assessment
Language英语
Li, Yong1,2; Su, Pengcheng1,2,3; Liu, Jingjing1,2,3
2011
Source Publication5th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment
Author of SourceR. Genevos ; D.L. Hamlion ; A. Prestinuizi
Pages941-946
meeting5th International Conference on Debris-Flow Hazard Mitigation: Mechanics, Prediction, and Assessment
Conference Date2011
Conference PlacePadua
CountryItaly
PublisherAmerican Society of Civil Engineers (ASCE)
Contribution Rank1
AbstractDebris flow moves in manner of successive surges and deposits by piling of surges. The surge occurs randomly and varies in properties and magnitude. This study explores the probability distribution of velocity and derives the distribution of flow depth based on observations in Jiangjia Gully in the southwest of China. The Weibull distribution is found to be well applicable to both the velocity and depth, with parameters varying in a rather small range. Therefore, the distribution is expected to hold in general for debris flows in different conditions and can be used to estimate the discharge of a potential debris flow. The estimated quantity is better than those inferred from the rainfall at a given frequency because it incorporates both the variation of surges and the real condition of the valley. In conclusion, The distribution provides a more reliable method of risk assessment of debris flow. © 2011 Casa Editrice Universita La Sapienza.
Keyword2008 wenchuan earthquakes Abundant materials Debris flows Empirical formulas Landslide dam Mozi gully Remote sensing images Wenchuan Earthquake
DOI10.4408/IJEGE.2011-03.B-084
ISBN9788895814469
Indexed ByEI
Accession numberAccession number:20122315082243
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/24065
Collection山地灾害与地表过程重点实验室
Corresponding AuthorLi, Yong
Affiliation1.Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu, 610041, China;
2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Ministry of Water Conservancy, Chengdu, 610041, China;
3.Graduate School of Chinese Academy of Sciences, Beijing, 100039, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding 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
Li, Yong,Su, Pengcheng,Liu, Jingjing. Probability distribution of debris flow depth and its implication in risk assessment[C]//R. Genevos, D.L. Hamlion, A. Prestinuizi:American Society of Civil Engineers (ASCE),2011:941-946.
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