基于SWMM模型的低影响开发与调蓄池组合设施模拟分析  

Simulation Analysis of Low-impact Development and Reservoir Combination Facilities Based on SWMM Model

作　　者：刘垟 吴涛[1] LIU Yang;WU Tao(School of Environment and Energy Engineering,Anhui Jianzhu University,Hefei 230601,China)

机构地区：[1]安徽建筑大学环境能源工程学院,安徽合肥230601

出　　处：《洛阳理工学院学报（自然科学版）》2022年第4期6-13,共8页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

摘　　要：为研究调蓄池+LID(Low Impact Development)组合方案对削减洪峰及面源污染控制的影响,以合肥市翡翠湖为研究对象构建SWMM模型(Storm Water Management Model),在2 h短历时降雨条件下模拟分析了单设调蓄池、单设LID措施和LID+调蓄池组合3种方法对雨洪控制与污染物削减的效果。相较于单设调蓄池和单设LID,组合方案(LID+调蓄池)在重现期P=0.5 a、1 a、3 a和5 a的情况下,洪峰径流量分别减少了42.68%、29.26%、18.51%、12.79%,径流总量分别减少了32.79%、25.97%、20.41%、15.39%,污染物截留总量(以COD为例)分别为426.87 kg、615.15 kg、886.5 kg和1107.8 kg。In order to study the control effects of the combined scheme of reservoir+LID on the reduction of peak flood and non-point source pollution,a SWMM model is constructed,taking Emerald Lake in Hefei as the research object.The three methods on stormwater control and pollutant reduction are simulated and analyzed under short rainfall for 2 h.The results show that by comparing the single regulated reservoir and the single LID,the combined scheme(LID+regulated reservoir)can decrease the flood peak dischargesby 42.68%,29.26%,18.51%and 12.79%respectively under the reproduction period of P=0.5 a,1 a,3 a and 5 a.The total runoff decreases by 32.79%,25.97%,20.41%and 15.39%,respectively.Taking COD as an example,the total interception amount was 426.87 kg,615.15 kg,886.5 kg and 1107.8 kg,respectively.

关 键 词：SWMM 低影响开发 雨水调蓄池 面源污染 雨洪控制 

分 类 号：TU992[建筑科学—市政工程]