Movement pattern of debris flow

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 > 山地灾害与地表过程重点实验室

	Movement pattern of debris flow
	Kang, A.Z.C.1; Law, K.T.2,3; Lee, C.F.4; Chen, X.Q.1,5
	2011
会议日期	2011
会议地点	Padua
关键词	Debris flow hazards Environmental conservation Gis and remote sensing Jinsha River basins Monitoring and controlling Qualitative assessments Quantitative assessments Vulnerability analysis
页码	449-456
英文摘要	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.
产权排序	1
会议录	5th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment
会议录出版者	American Society of Civil Engineers (ASCE)
语种	英语
ISBN号	9789059660595
内容类型	会议论文
源URL	[http://ir.imde.ac.cn/handle/131551/24071]
专题	成都山地灾害与环境研究所_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
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]. 见:. Padua. 2011.