莫拉克颱風河道破堤特性分析

Characteristics of Levee Breach Caused by Typhoon Morakot

謝正倫(C. L. Shieh) ； 林家興(C. H. Lin) ； 曾志民(C. M. Tseng) ； 李心平(S. P. Lee) ； 邱禎龍(C. L. Chiu)

《中華防災學刊》 2卷1期 (2010/02) Pp. 73-80

https://doi.org/10.30052/JTDPS.201002.0009

摘要

莫拉克颱風挾帶超大豪雨，重創南台灣，引致上游集水區多處土砂運動災害，而於下游集水區造成多處淹水情況。依據水利署河海組統計造成中央管河川、區排及海堤搶險工程分別有84件與7件。本文於災害後利用現場調查南投、嘉義、台南、高雄、屏東等縣市，共收集43處破堤點位資料。應用日本之水理公式集公式，廻歸破堤與河道特性，得到台灣之廻歸公式。成果顯示台灣之破堤長度較日本公式推估值大。

關鍵字

莫拉克颱風 ； 破堤

並列摘要

Due to the heavy rainfall of the Typhoon Morakot, resulted in the sediment movement disaster in the upstream area and flood inundation in the downstream area. According to the Water Resources Agency statistics data there were 84 and 7 emergency repair respected to river levee system and local drainage system. After the disaster using field survey to investigate some counties and collected 43 field data in the center and south Taiwan. Apply the Japan empirical formula to regress the levee breach and river width characteristics and obtained the Taiwan' empirical formula. The results show that Taiwan' levee breach length is large than Japan's levee breach length.

並列關鍵字

Typhoon Morokat ； levee breach