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題 名 | 滯洪池設置對降低南科周邊地區淹水潛勢之分析=Analysis on Effect of Detention-Pond on Reduction of Flooding Potential around the Tainan Scientific Base Industrial Park |
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作 者 | 陳金諾; 蔡智恆; 蔡長泰; | 書刊名 | 中國土木水利工程學刊 |
卷 期 | 19:2 2007.06[民96.06] |
頁 次 | 頁189-198 |
分類號 | 443.46 |
關鍵詞 | 滯洪池; 地文性淹水模式; 河系洪流演算模式; 淹水潛勢; Detention-pond; Physiographic inundation model; Flood routing model for channel network; Flooding potential; |
語 文 | 中文(Chinese) |
中文摘要 | 滯洪池設置將影響南科周邊地區淹水潛勢及排水路出流洪峰水位與稽延。本文以地文性淹水模式結合地理資訊系統與河系洪流演算模式,探討五種重現期距年二日暴雨下,南科特定區及和順寮之滯洪池設置前後淹水潛勢、周邊排水路出流水位歷線。演算結果比較顯示,滯洪池設置後淹水面積及體積均顯著減少,但重現期距50年以上降雨,淹水面積減少較不明顯。周邊排水路出流歷線在重現期距2年降雨,洪峰消減及稽延均明顯;高於重現期距2年降雨,洪峰稽延明顯,洪峰消減不明顯。且滯洪池設置量多寡及設置位置,亦明顯影響周邊排水路洪峰消減及稽延。 |
英文摘要 | The detention-ponds sited on the lowland give an influence on flooding potential as well as peak-flow stage and time lag to peak. This paper studies the effect of detention-ponds on flooding potential in two-day floods for the five return period-floods. The investigations on outflow of drainages around the Tainan Scientific Base Industrial Park (TSBIP) include the reduction on flooding volume, area, peak-flow stage, and time lag to peak in the drainage system related to the Tainan Science-based Industrial Park catchment. The hydrologic and physiographic parameters in the river basin are analyzed with the assistance of GIS. Then a physiographic inundation model and a flood routing model for channel network are utilized to estimate the effect after detention-ponds are sited. Comparison of simulated results indicates that inundated area and volume are decreased after detention-ponds sites; however, there is no apparent decrease in inundated areas in return-period-flood greater than or equal to 50-year. Not only the peak-flow reduction but also time lag to peak are apparent in return-period-flood 2-year, but peak-flow reduction is unapparent in return-period-flood greater than 2-year. Moreover, peak flow stage and time lag to peak in the drainage system are influenced by numbers of detention-ponds and location where they are sited. |
本系統中英文摘要資訊取自各篇刊載內容。