The variability in time of the occurrence conditions of debris flow after catastrophic typhoons and earthquakes: A theoretical explanation with experimental tests

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

In Taiwan, large and often catastrophic typhoons and earthquakes are both factors to trigger serious landslides in mountains. The presences of large amounts of sediments due to the landslides increase the occurrence of debris flow. Base on post-event data, the threshold of debris flow occurrence decreases soon after an earthquake indicating a fast recovery. A relationship of debris flow occurrence from EGASHIRA (1997) is applied, which shows fine sediment plays an important role with debris-flow development and occurrence. In this paper, a series mobile-bed experiments were done to access the influence of the concentration change from upstream discharge with fine/coarse particle. Two variables were recorded in the experiment, which were depth-ratio (sediment layer depth/ total depth), and the sediment discharge. With comparison with theoretical relationship, the result shows the occurrence condition varied with the ratio of fine sediment.

原文English
主出版物標題5th International Conference on Debris-Flow Hazard Mitigation
主出版物子標題Mechanics, Prediction, and Assessment
頁面143-148
頁數6
DOIs
出版狀態Published - 2011
事件5th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment - Padua, Italy
持續時間: 2011 6月 142011 6月 17

出版系列

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

Other

Other5th International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment
國家/地區Italy
城市Padua
期間11-06-1411-06-17

All Science Journal Classification (ASJC) codes

  • 水科學與技術
  • 岩土工程與工程地質
  • 地表過程

指紋

深入研究「The variability in time of the occurrence conditions of debris flow after catastrophic typhoons and earthquakes: A theoretical explanation with experimental tests」主題。共同形成了獨特的指紋。

引用此