Assessment of sediment arrival hazard during heavy rainfall for wide region

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  • KITAZUME Takashi
    Tokyo Electric Power Services Co., Ltd., Civil Engineering Division
  • ABE Takahiro
    UNIC Corporation, Numerical Analysis Division
  • ENDO Shusuke
    Tokyo Electric Power Services Co., Ltd., Civil Engineering Division
  • SEKI Yukari
    Tokyo Electric Power Services Co., Ltd., Civil Engineering Division
  • SATO Kyohei
    Tokyo Electric Power Services Co., Ltd., Civil Engineering Division
  • NARUMI Masatoshi
    Tokyo Electric Power Services Co., Ltd., Civil Engineering Division
  • NISHIMURA Satoshi
    UNIC Corporation, Numerical Analysis Division
  • GOTO Satoshi
    University of Yamanashi, Graduate Faculty of Interdisciplinary Research, Faculty of Engineering

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Other Title
  • 広域を対象とした豪雨時流出土砂の到達危険度評価

Abstract

<p>Numerical simulation tools based on cellular automata and multi-agent systems have been developed to evaluate the arrival hazard of simultaneous sediment flows over wide areas during heavy rainfall. This paper discusses the validity and applicability of the developed tool by conducting a parametric study using simple slope models and a replicated analysis of an actual landslide disaster during heavy rainfall. A case study is also presented in which the sediment arrival hazard is evaluated at several canyon outlet points.</p>

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