本文選題：險工水位 + 清水溝原河道��； 參考：《人民黃河》2017年11期

【摘要】：清水溝流路1976年行河以來,來水來沙條件及河道邊界條件都發(fā)生了較大變化,對1976年黃河行河清水溝以來利津至河口河段6—10月有觀測資料的險工不同流量級水位變化情況進(jìn)行分析,為黃河下游防洪及河口治理提供參考。分別對清水溝流路原河道行河和清8汊行河兩個時期水位資料進(jìn)行分析,可以發(fā)現(xiàn)清水溝流路原河道行河時期(1976—1996年)各險工的"抬升—降低—抬升"水位變化過程基本與清水溝流路原河道"淤積—沖刷—淤積"的演變過程相對應(yīng)。清8汊行河時期(1996—2015年)研究河段水位受河道改汊、挖河固堤工程、小浪底調(diào)水調(diào)沙等影響,基本處于下降狀態(tài),尤其是小浪底水庫調(diào)水調(diào)沙以來,除王家莊外各站3 000 m~3/s流量對應(yīng)水位較改汊前都下降了1 m以上,充分體現(xiàn)了水位的升降與來水來沙條件、河道邊界條件之間的關(guān)系。
[Abstract]:Since the river was moved along the Qingshuigou River in 1976, the conditions of water and sediment and the boundary conditions of the river have changed greatly. This paper analyzes the variation of water level of different discharge levels of dangerous workers in June to October of June to October in the reach of Lijin to estuary since the Qingshuigou of the Yellow River in 1976, which provides a reference for flood control and estuary control in the lower reaches of the Yellow River. The water level data of the original river course and the Qing8 branch river in Qingshuigou flow Road are analyzed respectively. It can be found that the process of "uplift-lowering-uplift" water level variation of the original channel in Qingshuigou flow Road (1976-1996) corresponds to the evolution process of "silting, scouring and silting" in the original channel of Qingshuigou flow Road. Study on the Water level of the reach affected by River diversion, River Embankment Construction, Xiaolangdi Water and sediment Regulation period (1996-2015), the water level of the reach is basically in a declining state, especially since the Xiaolangdi Reservoir has transferred water and sediment. The corresponding water level of 3 000 m / 3 / s of discharge in all stations except Wangjiazhuang has decreased by more than 1 m compared with that before the change, which fully reflects the relationship between the rising and falling of water level and the condition of incoming water and sediment, and the boundary condition of river course.
【作者單位】： 山東黃河河務(wù)局黃河河口管理局;
【分類號】：TV856;TV882.1
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本文編號：2050871