Numerical Study on the Impact of GongJi Road Rain Pump on the Waterlogging in Huinan, Pudong District

摘要

To study the rainstorm waterlogging disasterin Huinan, Pudong District, an urban waterlogging model coupled with therainfall runoff sub-model, underground network sub-model and the overland flowsub-model has been set up by MIKE FLOOD. After the validation with the actualreports of the waterlogging in Huinan on Oct. 8th, 2013, the model is adoptedto simulate the overland flood before and after Gongji Road Rain Pump works tostudy the impact of Gongji Road Rain Pump on the waterlogging disaster. Theresults are analyzed and the conclusions are obtained: when Gongji Road RainPump runs, the total flooded area will significantly decrease to .49 km2, about21%, meanwhile, the drowned duration will be shortened in 6 hours, ahead 10hours. Therefore, Gongji Road Rain Pump can alleviate the waterlogging, butsome other measures are still needed to be taken to solve the waterloggingdisaster.