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題名 | 堤防溢堤之河川洪流演算模式及其應用 |
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作者姓名(中文) | 許銘熙; 王如意; 顏清連; | 書刊名 | 農業工程學報 |
卷期 | 34:3 1988.09[民77.09] |
頁次 | 頁1-11 |
分類號 | 443.42 |
關鍵詞 | 河川; 洪流; 堤防; 溢堤; 演算; |
語文 | 中文(Chinese) |
中文摘要 | 本文依據一維性緩變量流理論與側流堰之試驗公式為基礎,利用非線性隱式差分法,建立洪流演算模式,以模擬萬一堤防發生溢流時,洪水波之傳遞情況。本文以曾文溪流域為演算實例,經由實測之颱洪記錄加以檢定與驗證,結果顯示本模式具有良好之精度。文中並且進一步研究曾文水庫運轉操作對下游流域之影響,同時亦探討不同之潮位變化以及下游河口段,斷面束縮對洪流流況之影響,以供水庫運轉操作、堤防規劃以及洪水預報之參考。 |
英文摘要 | A flood routing model for river with over levee flows has been developed for flood forecasting. The model is based on solving the one dimensional de Saint Venant equations and a weir-flow formula by using a nonlinear implicit scheme. The simulation model was applied to Tsengwen river system in Tsengwen basin of southern Taiwan. By using the numerical model, the influences of Tsengwen reservoir operations on downstream areas of the basin during the flood season were investigated. In addition, river training schemes having various channel widths near mouth were also investigated under flood flows of different recurrence intervals. The simulated results provide some necessary in formations for the planning of flood mitigation in the basin. |
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