基于多维耦合模型的城市管网排水能力影响模拟研究——以义乌市江南片区为例  

Simulation Study on Influencing Factors of Drainage Capacity in Urban Pipe Network Based on Multi-dimensional Coupled Model:A Case Study of Jiangnan Area of Yiwu City

作　　者：李鹏辉 甄亿位 周雁潭 LI Penghui;ZHEN Yiwei;ZHOU Yantan(Zhejiang Institute of Hydraulics and Estuary,Hangzhou 310020,China;Water Network and Water Investment Co.,Ltd.,China South-to-North Water Diversion Group,Beijing 100142,China)

机构地区：[1]浙江省水利河口研究院,浙江杭州310020 [2]中国南水北调集团水网水务投资有限公司,北京100142

出　　处：《浙江水利水电学院学报》2024年第6期53-58,共6页Journal of Zhejiang University of Water Resources and Electric Power

基　　金：浙江水利科技计划项目(RC2217)。

摘　　要：以义乌市江南片区为研究区域,探究河道洪水和地表漫溢积水对城市管网排水能力的影响。基于MIKE模型平台,建立一二维耦合的水文水动力模型,模拟不同条件下城市管网排水能力及内涝积水情况。结果显示,河道洪水、地面漫溢积水与管道排水之间相互存在动态影响,在20 a一遇设计洪水下,河道洪水顶托会降低管网排水能力,管网检查井向地面漫溢排水则将显著增强管网排水能力,表明研究区域地表漫溢排水对管网排水能力影响大于河道洪水顶托作用。研究结论可为城市排水系统设计和城市内涝防治提供参考。In order to investigate the impact of river flood and surface overflow on the drainage capacity of urban pipe network,the Jiangnan District of Yiwu City was chosen as the study area.Based on the MIKE Model,a two-dimensional coupled hydro-hydrodynamic model was established to simulate the drainage capacity of urban pipe network and urban inundation under different simulation conditions.The results show that river flood and surface overflow dynamically interact with pipeline drainage.Under the 20-year design flood,river floods can reduce the drainage capacity of the pipe network due to water backing up,while surface overflow drainage to sewer manholes significantly enhances the drainage capacity of the pipe network.Overall,surface overflow drainage has a greater impact on the drainage capacity of the pipe network than the hydraulic effect of river floods.The research conclusions can provide a reference for the design of urban drainage system and the prevention of urban flooding.

关 键 词：城市管网 耦合模型 河道洪水 地表漫溢积水 

分 类 号：TV124[水利工程—水文学及水资源]