【摘要】 SWMM是广泛应用于城市某一单一或长期降雨事件的水动力和水质模型,但SWMM在应对大型城市流域和复杂排水系统时存在操作界面复杂、建模效率低等问题。基于GIS软件强大地理信息处理能力以及Python自动化处理技术,建立一种面向大型城市截留式复杂雨污排水系统的高效建模解决方案,并利用该方法以某城市S的内河流域为研究对象,建立S市该河流域排水系统水动力水质模型,包括排水管网概化、流域分析、汇水区划分、水文参数提取处理、污水入流模拟以及截污管道参数设置与模拟等内容。模型具有较高的精准度,模拟结果与实际运行数据误差小于20%。最后该模型应用于S市实际排水管网检查井冒溢情况分析以及泵站、调蓄水池等涉水设备设施运行状态分析与调度调整规划。本研究将为大型城市复杂排水管网的规划建设、设备设施运行优化、以及河流溢流污染控制等提供理论基础和数据支持。更多还原

【Abstract】 SWMM is a hydrodynamic and water quality model that is widely used in a single or long-term rainfall event in a city.However,SWMM has problems such as complex operation interface and low modeling efficiency when dealing with large urban watersheds or complex drainage systems.In this research,powerful geographic information processing capabilities of GIS software and Python automatic processing technology was been established an efficient modeling solution for the intercepted and complex rain and sewage drainage system of large cities.This method was used to take the inland river basin of a city S as the research object establish the hydrodynamic water quality model of the drainage system of the river basin in city S,including generalization of drainage pipe network,watershed analysis,catchment area division,hydrological parameter extraction and treatment,sewage inflow simulation,and sewage interception pipeline parameter setting and simulation modules.The model had high accuracy,and the error between simulation results and actual operating data was less than 20%.Finally,the model was applied to the analysis of the overflow situation of the inspection wells of the drainage pipe network in S city,and the operation status analysis and scheduling adjustment planning of the pumping station,the regulating reservoir and other water equipment facilities.This research will provide theoretical foundation and data support for the planning and construction of complex drainage pipe networks in large cities,the optimization of equipment and facilities operation,and river overflow pollution control.更多还原