城市化对排水系统的影响及自适应改造研究

发布时间：2018-06-21 08:27

本文选题：排水系统 + 城市化　；参考：《中国给水排水》2016年21期

【摘要】：分析了城市化对原有排水系统的影响,并提出提高城市排水管网设计标准的改造方案。以呼和浩特市W排水系统为研究对象,应用SWMM工具,结合Arc GIS,对其排水系统进行动态仿真模拟计算。在不同降雨情景下,分析与比较了研究区域在不同管网设计重现期改造方案下的溢流量等信息,计算内涝风险指数。结果表明,城市扩张增大了原有排水管网的负荷;提高管网设计重现期可以降低内涝灾害的风险系数。另外,借鉴经济订货批量(EOQ)模型的评价方法,依据工程性与经济性评价选取最优自适应改造方案。以上方法可用于其他地区城市化自适应改造措施研究,为城市排水系统规划和防洪排涝提供理论依据和决策支持。
[Abstract]:This paper analyzes the influence of urbanization on the original drainage system, and puts forward a scheme to improve the design standard of urban drainage pipe network. Taking the W drainage system of Hohhot city as the research object, the dynamic simulation and calculation of the drainage system are carried out by using the tool of SWMM and Arc GIS. Under different rainfall scenarios, the information of overflow flow in different reconstruction schemes of pipeline network design is analyzed and compared, and the waterlogging risk index is calculated. The results show that the urban expansion increases the load of the original drainage network and the risk coefficient of the waterlogging disaster can be reduced by increasing the recurrence period of the pipe network design. In addition, based on the evaluation method of EOQ model, the optimal adaptive reconstruction scheme is selected according to the evaluation of engineering and economy. The above methods can be used in the study of adaptive reconstruction measures of urbanization in other areas and provide theoretical basis and decision support for urban drainage system planning and flood control and drainage.
【作者单位】：广东工业大学土木与交通工程学院;
【基金】：广东省自然科学基金资助项目(2014A030310121) 留学回国人员科研启动基金资助项目
【分类号】：TU992

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