Simulation of Debris Flow Considering Erosion and Sedimentation (침식 및 퇴적을 고려한 토석류 모의)

SungDuk Kim (김성덕); Hojin Lee (이호진)

Simulation of Debris Flow Considering Erosion and Sedimentation

Crisisonomy
Abbr : KRCEM
2014, 10(7), pp.149-159
Publisher : Crisis and Emergency Management: Theory and Praxis
Research Area : Social Science > Public Policy > Public Policy in general

SungDuk Kim ¹, Hojin Lee ²

¹중앙대학교
²충북대학교

Accredited

ABSTRACT

The purpose of this study is to simulate the debris flow considering the erosion and the sedimentation. Currently, the effective method for studying and estimating the debris flow is to use numerical model. Most of numerical models in the published research do not consider the erosion and the sedimentation. In this study, the numerical simulation was performed by using Egashira’s method(1997) which is considered the erosion and the sedimentation. The erosion at the channel was dominant until debris flow was reached at the downstream of the channel. As the inflow was increased, the amount of peak erosion was increased, and the occurring point of it more moved down to stream of channel. The fluctuation of debris flow was disappeared after passing through the 40% point of channel length from the upstream.

KEYWORDS

debris flow, erosion and sedimentation, Egashira’s method, numerical simulation

KJCKorea
Journal Central

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