IMHE OpenIR  > 山地灾害与地表过程重点实验室
Formation conditions and risk evaluation of glacial debris flow disasters along International Karakorum Highway (KKH)
Language英语
Yang, Zhiquan1,2,3; Zhu, Yingyan1,3; Zou, D.H. Steve1,3
2011
Source Publication5th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment
Author of SourceR. Genevos ; D.L. Hamlion ; A. Prestinuizi
Pages1031-1037
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
AbstractThe area of International Karakorum Highway (KKH), a mountain highway connecting northern Pakistan with northwestward China, is an area with dense and frequent glacial debris flow disasters due to the special glacial geology and landform. In this area the three basic conditions inducing glacial debris flow have developed,namely the widely distributed glacial till and ice-snow colluvium, which arise from collapse and landslide, provide the main solid sources of glacial debris flow; the very high and steep slopes, take the landform of steps with a very big gradient, to provide the moving way for glacial debris flow; and the ice-snow melt water from high-mountain, the melt water of glacier avalanche and glacial lake outburst flood provide glacial debris flow for the force to move. The valley-type debris flow is the main type of glacial debris flow occurred in the area, and it can be classified into further three sub-types according to the water source, namely glacierablation type debris flow, glacier-avalanche type debris flow and glacial-lake-outburst- flood type debris flow. Based on in situ investigation and analysis of seven controlling variables of glacial debris flow, such as occurrence frequency, catchment areas, volumes of alluvial fan, estimated outflow of every time, vegetation coverage, slope and altitudeio evaluate the risk degree of 8 chosen representative glacier debris flows along KKH. The comprehensive fuzzy evaluation method is applied to evaluate the risk degree of glacier debris flow and then the evaluation result shows a good correspond with the practical situation, i.e. this method has a valuable application foreground. © 2011 Casa Editrice Universita La Sapienza.
Keyword2008 wenchuan earthquakes 3D laser scanning system Assessment and monitoring Debris flows Development feature Disaster prevention and mitigations Field observations Niujuan Gully
DOI10.4408/IJEGE.2011-03.B-094
ISBN9788895814469
Indexed ByEI
Accession numberAccession number:20122315082253
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/24067
Collection山地灾害与地表过程重点实验室
Corresponding AuthorYang, Zhiquan
Affiliation1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Ministry of Water Conservancy, Chengdu, China;
2.Graduate University of Chinese Academy of Sciences, Beijing, China;
3.Key Laboratory of Mountain Hazards and Earth Surface Processes, Chinese Academy of Sciences, Chengdu, 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
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Yang, Zhiquan,Zhu, Yingyan,Zou, D.H. Steve. Formation conditions and risk evaluation of glacial debris flow disasters along International Karakorum Highway (KKH)[C]//R. Genevos, D.L. Hamlion, A. Prestinuizi:American Society of Civil Engineers (ASCE),2011:1031-1037.
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