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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/24152

Title: Occurrence of Regional Debris Flow Hazards in Storms After Strong Seismic Disturbance
Authors: Cheng-Yu Ku;Shih-Meng Hsu;Chung-Hui Chiao;Li-Yuan Fei
Contributors: NTOU:Department of Harbor and River Engineering
Keywords: Debris flow;landslide;rainfall;earthquake;geohazard
Date: 2009-06
Issue Date: 2011-10-20T08:10:30Z
Publisher: Proceedings of the Nineteenth (2009) International Offshore and Polar Engineering Conference Osaka, Japan
Abstract: abstract:In this paper, we present a detailed study on the occurrence of regional debris flow hazards in storms after strong seismic disturbance. To explore the coupling between the Chi-Chi earthquake and sequential regional debris flow hazards in the study area, analyses of rainfall characteristics, rainfall-induced landslides, and debris flow formation from rainfall-induced landslides were conducted. Our findings indicate that the regional debris flow hazards were mainly caused by the huge amount of sparsely deposited materials from landslides triggered by the Chi-Chi earthquake. Rapidly increasing water pressure caused by typhoon events with specific rainfall intensity provided a powerful force that moved the sparsely deposited materials into gullies and then triggered the debris flow movement.
URI: http://ntour.ntou.edu.tw/handle/987654321/24152
Appears in Collections:[河海工程學系] 演講及研討會

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