【摘要】：針對南水北調(diào)中線一期工程天津干線的地形地勢、洪水和輸水過程等條件,在輸水方案設(shè)計中,分別采取了相應(yīng)措施。通過對多種不同輸水方式的系統(tǒng)研究,因地制宜地提出了無壓接有壓自流輸水方案;采用多功能自動調(diào)節(jié)堰井技術(shù),簡化了水力控制條件,降低了工程投資;針對可能出現(xiàn)的糙率進行水力設(shè)計,保證了流態(tài)穩(wěn)定;統(tǒng)籌考慮相關(guān)工程的不利影響,設(shè)置溢流調(diào)節(jié)措施,保證了工程安全。實踐證明,輸水方案切實可行,科學(xué)合理。
[Abstract]:In view of the terrain, flood and water transfer process of Tianjin trunk line in the first phase of South-to-North Water transfer Project, the corresponding measures are taken in the design of water conveyance scheme. Based on the systematic study of various water conveyance modes, this paper puts forward a water conveyance scheme with no pressure connection and pressure autoflow according to local conditions, adopts multi-function automatic regulation Weir well technology, simplifies hydraulic control conditions and reduces project investment. The hydraulic design is aimed at the possible roughness to ensure the stability of the flow state and the safety of the project is ensured by setting up the overflow regulation measures considering the adverse effects of the relevant projects as a whole. Practice has proved that the water transfer scheme is feasible and scientific and reasonable.
【作者單位】： 天津市水利勘測設(shè)計院;
【分類號】：TV68

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