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The Modeling of Debris Flow Disaster According to the Location of Berm

  • Crisisonomy
  • Abbr : KRCEM
  • 2015, 11(9), pp.105-118
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general

Ho-Jin Lee 1 SungDuk Kim 1 Kye-Won Jun 2 이문세 3

1충북대학교
2강원대학교
3산림조합

Accredited

ABSTRACT

The purpose of this study is to analyze the water discharge and the sediment volume concentration of debris flow at the end of downstream channel according to the various locations of the berm. The aspect of debris flow by the variance of the supplying water discharge was also investigated at the each locations of berm, based on the Finite Difference Method (FDM). For the case of fewer water supply, the closer the berm was to the upstream channel and the higher the slope angle was, the larger water discharge of debris flow was observed. The increase in water supplying discharge lead to a higher fluctuation at the end of downstream channel. For the case of sediment volume concentration, the value of sediment volume concentration remain unchanged for each location of the berm with a low level of supplying water discharge. On the other hand, an inflection point was occurred when the supplying water discharge increased and the slope angle of the channel was large.

Citation status

* References for papers published after 2022 are currently being built.

This paper was written with support from the National Research Foundation of Korea.