IMHE OpenIR  > 山地灾害与地表过程重点实验室
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
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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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