Application of SWMM in Planning and Construction of Urban Drainage System
In view of the rapid development of urbanization,the frequent occurrence of extreme rainfall events,as well as the low status of urban drainage design standards,resulting in frequent waterlogging in the urban areas,the proposed Yunliang River Group project in Kaifeng City is generalized by the ArcGIS.SWMM is used to simulate the operation conditions of planning urban drainage system under the several scenarios.And then the effect of the planning urban drainage system under the different return period rainfall,different rainfall patterns and different level urbanization is analyzed.Finally,low impact development (LID) facilities for the control of urban flood in the study area are simulated and evaluated.The results show that the SWMM can be used to have a preliminary check and have the good applicability to planning urban drainage system; the reasonable application of low impact development measures can control the urban flood effectively,which improves the urban ability to resist large rainstorm to a certain extent.
urbanizationstorm water management modelArcGISlow impact development