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題名 | 截流系統對基隆河水理影響之研究= |
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作者 | 許銘熙; 連上堯; |
期刊 | 農業工程學報 |
出版日期 | 19880600 |
卷期 | 34:2 1988.06[民77.06] |
頁次 | 頁19-25 |
分類號 | 443.64 |
語文 | chi |
關鍵詞 | 水理; 系統; 基隆河; 截流; |
中文摘要 | 淡水河系污染整治規劃初期工程採用截流方案,截流系統完成後,部份流量被截流而未返回河川中,對河川水理特性必然造成影響,尤以枯水期影響較為顯示。截流工程初期以基隆河流域為實施地區,為研究截流系統對河川水理之影響,本文乃以一維緩變量流方程式為基礎,利用以四點隱式差分法建立數學模式以進行水理模擬,比較有、無截流系統情況下基隆河之水理特性。 本研究模擬結果與現實測數據大致相符,證實本模式之可行性。並應用本模式平估截流系統對基隆河枯水時期理影響程度,結果顯示,流量及水位歷線所受到的影響,上游河段較下游為大,並且在截流系統完成後,感溯河段之終點將由目前汐止之江北橋附近上移,即感溯河段將較目前增長。 |
英文摘要 | The preliminary planning of the water pollution control for Tanshui river is the interception of waste water. Parts of discharge are intercepted that no more flow back to the river. It is possible to impact on the hydraulic characteristics of the river. The impact will be obvius in the low flow period. The preliminary work of intercepter practices on Kellung river basin. In order to understand the impact on the hydraulic characteristics of Keelung river by the intercepter system, a mathematical model is constructed based on one-dimensional gradually varied flow equation and using the four points implicit finite difference method. The hydraulic characteristics under conditions with or without the intercepter system was investigated by using the model. The simulated results and the field data was comparised in this study. It is found that simulated results is satisfactory and proved the feasibility of the model. By applying this model, the impact on the hydraulic characteristics was evaluated when the intercepter system practiced on Keelung river. It is shown that the impact on the discharge and stage hydrograph of upstream reach is more serious than downstream. As the intercepter system is completed, the tidal reach will be elongated from Chiang-Pei Bridge at present to the upstream of the bridge during the low flow period. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。