沿海平原排涝闸站前设置湖泊的作用

The Role of Storage Lakes in Coastal Plain Drainage Stations

沿海平原排涝闸站在运行过程中,经常导致开闸排水时闸前水位很低而补水不及,关闸挡潮时闸前水位过高而上游涝区汇流不足。结合实例,从水力学角度分析闸前调蓄湖的排涝作用,进而说明排涝闸前设置调蓄湖泊的必要性。

During the operation of the coastal plain drainage station, the water level at the front of the gates is often going down very fast when the gates open, failing to coverage enough water and make the most use of the drain capacity. On the contrary, the water level may rise quickly when the gates closed, causing that the water cannot going downstream fast enough because of the little hydraulic slope. In this paper, an example is given to analyze the drainage effect of the lake before the sluice gate from the point of view of hydraulics, and then to illustrate the necessity of setting up a lake for storage before the drainage station.