基于老旧小区面源污染物研究的SWMM模型污染物模块参数选择  

Parameter Selection of Pollutant Module in SWMM Model Based on the Study of Non-Point Source Pollutants in Old Residential Areas

作　　者：邱蓉 曹家伟 张显忠 QIU Rong;CAO Jia-wei;ZHANG Xian-zhong(Arcplus Institute of Shanghai Architectural Design&Research Co.,Ltd.,Shanghai 200041,China;Shanghai Urban Construction Design&Research InstituteCo.,Ltd.,Shanghai 200125,China)

机构地区：[1]上海建筑设计研究院有限公司,上海200041 [2]上海市城市建设设计研究总院(集团)有限公司,上海200125

出　　处：《中国市政工程》2022年第4期51-54,122,123,共6页China Municipal Engineering

摘　　要：研究基于上海市某老旧小区雨污分流改造工程的SWMM模型,通过对小区内部各类型下垫面径流雨水的取样和检测,与模型模拟结果进行对比,修正污染物累积和冲刷模型函数的关键参数,使得模拟结果与检测结果的平均偏差率低于20%。试验表明,不同下垫面类型对于污染物累积函数(POW)参数的取值影响较大。污染物冲刷函数(EXP)主要受到降雨强度、前期污染物累积量这2个因素的影响,与下垫面类型的相关性不大。The SWMM model based on the rain&sewage diversion reconstruction project of an old community in Shanghai is studied.Through the sampling and detection of various types of runoff&rainwater on the underlying surface in the community,the key parameters of the pollutant accumulation and scouring model function are modified by comparing the model simulation results,so that the average deviation rate between the simulation results and the detection results is less than 20%.The experiment shows that different types of underlying surface have great influence on the value of pollutant accumulation function(POW)parameters.The pollutant scour function(EXP)is mainly affected by rainfall intensity and pollutant accumulation in the early stage,and has little correlation with the type of underlying surface.

关 键 词：面源污染 SWMM模型 污染物模块 

分 类 号：TU992[建筑科学—市政工程]