Hydrodynamic Technology Research For Obviation Sand In The Pond Of City Drainage Pumping Station

In order to solve the problem of pollution in confluence drainage system, which is caused by initial rainwater, setting storage pond under the drainage pumping station is a effective measure.In this disquisition we do some studies based on the two existing storage pond project of FuRong River pumping station and XinChangping pumping station. According to both the different fracture plane form data of the physical model of the pumping station, and the hydraulics analysis, we found Modal "U" more suitable for the fracture plane of the bottom groove of the storage pond.We knew that the bending fundus width of sediment ejection trough influences the sediment ejection ability of the sediment ejection trough vitally. Bypass carrying out rinsing experiment upon physical model of sediment ejection trough and simulating the flow in sediment ejection trough using hydrodynamics compute software (CFD), we made certain that it should be suitable when the fundus width of the bend is added suitably.we implemented sediment rinse tests in sediment ejection trough of "U" and different bending fundus width of trapeziform, and we find the method of the sediment ejection trough is feasible. It has very import knowing meaning and use value to projects in practice.