Debris flows produced by heavy rains on July 21, 2009 in Hofu City, Japan

Hiroyuki Nagano, Haruyuki Hashimoto, Yoshiaki Kuroda, Hiroki Takaoka

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 被引用数 (Scopus)

抄録

In this paper, we examine the debris flows which occurred in the mountain rivers in Hofu City, Japan on July 21, 2009. We estimate velocity and discharge of the debris flows in the rivers at Manao and Ishihara districts from field survey and numerical simulation. The numerical simulation indicates that the peak discharge is 181 m 3/s in the river at Manao district and 258 m 3/s in the river at Ishihara district. It is found that sediment yield volume by riverside erosion is larger than landslide sediment volume in the both rivers. Although the landslides triggered the debris flow initiation, they did not play the major role for the sediment outflow to the residential areas. The morphological characteristics of the river at Ishihara district increase debris flow discharge

本文言語英語
ホスト出版物のタイトル5th International Conference on Debris-Flow Hazard Mitigation
ホスト出版物のサブタイトルMechanics, Prediction, and Assessment
ページ725-733
ページ数9
DOI
出版ステータス出版済み - 2011
イベント5th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment - Padua, イタリア
継続期間: 6 14 20116 17 2011

出版物シリーズ

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

その他

その他5th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment
国/地域イタリア
CityPadua
Period6/14/116/17/11

All Science Journal Classification (ASJC) codes

  • 水の科学と技術
  • 地盤工学および土木地質学
  • 地表過程

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