# 滨江城市泵站设计排涝流量计算方法研究Design Drainage Flow Calculation of Pumping Station in Binjiang City

DOI: 10.12677/JWRR.2012.14036, PDF, HTML, 下载: 2,619  浏览: 7,868

Abstract: Riverside cities always prevent flood by embankments, draining water-logging by pump stations, in which the core of drainage calculation is to determine the reasonable design drainage capacity of pump stations. There’s no reliable method at present. During the process of the calculation in riverside cities, the complicated drainage boundary of pump stations has typical characteristics, differing from the boundary of natural unsteady flow calculation. Therefore, the key point is the handling of the drainage boundary to find out the reasonable design drainage capacity of pump stations. A trial and error calculation method is proposed in this paper. By assuming the initial design drainage capacity of pump stations, the final value is obtained by the trial and error calculations of unsteady flow, taking the water level of city river network as controlling condition. Different ways to assume initial values and the flow chart are given, in order to improve the applicability of the proposed method. Hexi New Town of Nanjing City was taken as a case study, results showed that the method is scientific and feasible, which provides a new method to determine the reasonable design drainage capacity of pump stations in riverside cities.

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