城镇排涝泵闸计算分析与设计

Simulation and design of water pump and sluice station in urban area

小型排涝泵闸作为城镇引水调度和防洪排涝的关键工程,承担沟通内外河水系的重要功能。为研究小型排涝泵闸的选址和选型,并基于此开展城镇排涝泵闸的设计工作,以江苏省江阴市青阳泵闸迁改建工程为例,首先进行了水动力数学模型计算,分析了拟建闸站在不同工况组合下引水和排涝时的水位及流速分布情况,根据分析结果进行选址;进而通过结构计算确定泵闸各段的结构尺寸,梳理了整体设计思路。结果表明:水闸的选址合理,引水期过流时对上下游河床稳定无影响;排涝期间泵站流量满足片区规划要求,且不会对下游河床造成冲刷;厂房整体布置合理,与周边建筑物形式协调,交通可与现有道路顺畅连接。研究成果为城镇地区小型泵闸建设提供了参考。

As the key project of urban water diversion and flood control,the small water pumping and sluice station play an important role in connecting the internal and external river system.A removal and reconstruction project of pump station in Jiangsu Province in Jiangsu Province was designed as an example to study the site and metal structure selection of a pump station.Firstly,the hydrodynamic numerical model was used to show how the water level and velocity distribute in different water conditions,and then the location of the station was chosen.Based on the structural calculation,the size of different parts in the sluice were clear.The results proved that the location of the sluice was reasonable,and the stability of the upstream and downstream riverbed was not influenced.The station building fit the environment well and can be coordinated with local transportation.The research could be reference for the construction of small-scale pumps and sluice stations.