Simulation of landslide-induced debris flow - The atsumari debris flow disaster in Minamata city, Japan

H. Takaoka, H. Hashimoto, M. Hikida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Heavy rains sometimes cause landslide on mountain slopes. Some of the landslides change into debris flows and then move into mountain rivers. The debris flows erode river bed and banks, and increase their discharge. As a result the debris flows overflow the river banks and cause serious damage to houses along the river. Simulation of these debris flows lays the foundation for assessing the debris flow disaster. The present study proposes a simulation method of the development and termination of a landslide-induced debris flow. It is composed of three parts: First, the response function and runoff coefficient is introduced for a transformation from landslide to debris flow. Second, the debris flow discharge along the middle reach is estimated. Finally, the flooding process of a debris flow along the downstream reach is simulated.

Original languageEnglish
Title of host publication4th International Conference on Debris-Flow Hazards Mitigation
Subtitle of host publicationMechanics, Prediction, and Assessment
Pages353-363
Number of pages11
Publication statusPublished - Dec 1 2007
Event4th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment - Chengdu, China
Duration: Sep 10 2007Sep 13 2007

Publication series

NameInternational Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings

Other

Other4th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment
CountryChina
CityChengdu
Period9/10/079/13/07

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Geotechnical Engineering and Engineering Geology
  • Earth-Surface Processes

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  • Cite this

    Takaoka, H., Hashimoto, H., & Hikida, M. (2007). Simulation of landslide-induced debris flow - The atsumari debris flow disaster in Minamata city, Japan. In 4th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment (pp. 353-363). (International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings).