IMHE OpenIR  > 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
Source Publication5th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment
Author of SourceR. Genevos ; D.L. Hamlion ; A. Prestinuizi
meeting5th International Conference on Debris-Flow Hazard Mitigation: Mechanics, Prediction, and Assessment
Conference Date2011
Conference PlacePadua
PublisherAmerican Society of Civil Engineers (ASCE)
Contribution Rank1
AbstractA 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.
KeywordDebris flow hazards Environmental conservation Gis and remote sensing Jinsha River basins Monitoring and controlling Qualitative assessments Quantitative assessments Vulnerability analysis
Indexed ByEI
Accession numberAccession number:20122315082193
Document Type会议论文
Corresponding AuthorKang, A.Z.C.
Affiliation1.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
Recommended Citation
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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