基于SWMM模型的海绵校园雨洪控制模拟研究

Simulation Study of Stormwater Control in Sponge Campus Based on SWMM Model

海绵校园作为海绵城市的组成部分,有着独立的产汇流特征。以安徽省某高校为例,通过布置LID设施,结合雨水管渠系统和超标雨水排放系统,建立海绵校园改造前后SWMM模型,模拟评价雨洪控制效果。结果表明:海绵校园改造后能够提高径流总量控制率、削减径流峰值和提高防洪排涝能力,为海绵城市建设提供参考和借鉴。

“Sponge campus”which is a component of sponge city has independent characteristics of water production and convergence.A university in Anhui province is taken as an example,sponge campus modification is done,SWMM model is established through the arranging of LID facilities,combining with the storm drain system and the excess storm water drainage system,which can simulate and evaluate the effect of stormwater control.The results show the reconstruction of“sponge campus”can improve the control rate of total runoff,reduce the peak value of runoff and improve the ability of flood control and drainage capacity,which can provide reference for the construction of sponge city.