基于SWMM和鸿业软件对种植屋面雨水管理模拟及评估

Simulation and Evaluation of Rainwater Management for Planted Roof Based on SWMM and Hongye Software

以合肥市某规划改造小区为研究对象,建立了传统和新型种植屋面的2类改造方案,通过SWMM和鸿业海绵软件分别进行模型构建,并对其径流控制及污染物削减能力进行模拟评估。结果表明,2类种植屋面改造方案均具有良好的处理效果,其中,传统种植屋面对径流的削减达到80%左右,对COD和SS的削减率分别为77%~89.7%和76%~85%。新型种植屋面在传统的基础上对总产流量的削减进一步提高11.2%,对污染物COD和SS的削减率提高了10%~12%和13.2%~15.9%。通过对2类种植屋面改造方案的软件模拟情况进行分析,为种植屋面在海绵城市建设中的推广实践提供技术支持。

Taking a planning and reconstruction project of a residential community in Hefei as the research object,two types of reconstruction schemes for traditional and new planting roofing were established.The model was constructed by SWMM and Hongye Sponge Software respectively,and runoff control and pollutant reduction capacity were simulated and evaluated.Results showed that both reconstruction schemes had good treatment effects,in which the traditional planted roof reduced the runoff by about 80%,and the rejection rates for COD and SS were 77%to 89.7%and 76%to 85%.New planted roof had further increased the total producted flow by 11.2%on a traditional basis,and the reduction of pollutants COD and SS increased by 10%to 12%and 13.2%to 15.9%.Through the analysis of software simulation of two planted roof reconstruction schemes,technological support is provided for promotion and application of planting roofing in sponge city construction.