Movement pattern of debris flow

	Movement pattern of debris flow
语种	英语
	Kang, A.Z.C.1; Law, K.T.2,3; Lee, C.F.4; Chen, X.Q.1,5
	2011
会议录名	5th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment
会议录编者/会议主办者	R. Genevos ; D.L. Hamlion ; A. Prestinuizi
页码	449-456
会议名称	5th International Conference on Debris-Flow Hazard Mitigation: Mechanics, Prediction, and Assessment
会议日期	2011
会议地点	Padua
会议举办国	Italy
出版者	American Society of Civil Engineers (ASCE)
产权排序	1
摘要	A kinematic model is developed to estimate the velocity and runout distance of a gravitative debris flow. The characteristics and the different stages of development of a gravitative flow are first described. The equations governing the motion during the flow are then derived based on the Newtonian translation motion with some simplified assumptions on the erosion process along the flow path. After the motion is initiated, the debris is considered to behave as a frictional material with the friction angle during motion being a function of the distance travelled measured from the initiation point. The equations derived are applied to two well-documented case records to assess their applicability. The application shows that the computed runout distances are slightly higher than the measured values. This slight error on the safe side is consistent with the simplified assumptions used in deriving the equations. The small error is acceptable for engineering designs in areas vulnerable to debris flows. © 2011 Casa Editrice Universita La Sapienza.
关键词	Debris flow hazards Environmental conservation Gis and remote sensing Jinsha River basins Monitoring and controlling Qualitative assessments Quantitative assessments Vulnerability analysis
ISBN号	9789059660595
收录类别	EI
EI收藏号	Accession number:20122315082193
文献类型	会议论文
条目标识符	http://ir.imde.ac.cn/handle/131551/24071
专题	山地灾害与地表过程重点实验室
通讯作者	Kang, A.Z.C.
作者单位	1.Dongchuan Debris Flow Observation and Research Station, Chinese Academic of Sciences, China; 2.Department of Civil and Environmental Engineering, Carleton University, Canada; 3.University of Hong Kong, Hong Kong; 4.Department of Civil Engineering, University of Hong Kong, Hong Kong; 5.Institute of Mountain Hazards and Environment, CAS, Chengdu, China
第一作者单位	Dongchuan Debris Flow Observation and Research Station, Chinese Academic of Sciences, China
通讯作者单位	Dongchuan Debris Flow Observation and Research Station, Chinese Academic of Sciences, China
推荐引用方式 GB/T 7714	Kang, A.Z.C.,Law, K.T.,Lee, C.F.,et al. Movement pattern of debris flow[C]//R. Genevos, D.L. Hamlion, A. Prestinuizi:American Society of Civil Engineers (ASCE),2011:449-456.

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