洞庭湖区城西垸排涝泵站出水池设计运行水位确定方法商榷

按照《泵站设计规范》（GB50265-2010）的要求，排水泵站出水池设计运行水位应取承泄区5a～10a一遇洪水的排水时段平均水位。本文根据对洞庭湖区城西垸水文气象特征、雨洪遭遇和排涝工程现状等具体条件的分析研究，得出城西垸排涝泵站出水池设计运行水位宜采用泵站所在地10a一遇历年最大3日暴雨相应3日平均水位并参考泵站所在地警戒水位的结论，对于洞庭湖及类似地区排涝泵站规划设计和运行调度方案的确定具有指导和借鉴意义。

Discussing the determining method of design and operation water level out of the pool of drainage pumping station in Chengxi embankment of Dongting Lake

According to (GB50265-2010),the design water level out of pool of drainage pumping station should choose the mean water level of 5 ~10 year flood in drainage receiver. Analysis of the specific conditions of weather & hydrology characteristics, flood encounter and drainage project in Chengxi embankment of Dongting Lake, we concluded that design and operation water level out of pool of drainage pumping station should adopt 10 year in the annual maximum daily rainfall corresponding 3 day average level, and refer to the warning level of local pumping stations. And it would give guidance and reference to determine planning and operation scheduling scheme in drainage pumping station of Dongting Lake and similar area.