调蓄水体及排口位置对城市管网排涝能力的影响研究  

Study on Influence of Drainage Capacity of Urban Pipe Network by Regulating Water Body and Outlet Position

作　　者：雷晓辉 刘东坤 龙岩 张谷迪 刘子维 LEI Xiao-hui;LIU Dong-kun;LONG Yan;ZHANG Gu-di;LIU Zi-wei(School of Water Conservancy and Hydroelectric Power,Hebei University of Engineering,Handan 056038,China;Hebei Key Laboratory of Intelligent Water Conservancy,Hebei University of Engineering,Handan 056038,China)

机构地区：[1]河北工程大学水利水电学院,河北邯郸056038 [2]河北工程大学河北省智慧水利重点实验室,河北邯郸056038

出　　处：《水电能源科学》2024年第10期50-54,共5页Water Resources and Power

基　　金：河北省创新研究群体项目(E2020402074)。

摘　　要：近年来城市内涝灾害频发,如何准确评估管网排涝能力,快速做出响应尤为重要。因此,结合不同区况特点,基于SWMM模型构建暴雨内涝模型,模拟分析不同工况下城区内涝情况,评估管网系统的排涝能力变化;并通过搭建物理实验平台,对不同工况下内涝结果进行分析验证。结果表明,研究区域在暴雨重现期大于20年一遇时,沿河排口位置变化对管网排涝能力影响不显著;大于50年一遇时,上游调蓄水体容积变化对内涝影响减弱;区域中排口位置于半淹没到全部露出水面状态变化时,发生大于2年一遇暴雨情况下,内涝变化程度最为明显;暴雨发生时当调蓄容积充满后,较大的调蓄水体可能对上游管网的液态变化造成更强扰动。研究可为暴雨期间城市防汛排涝提出指导性建议。In recent years,urban waterlogging disasters have occurred frequently.How to accurately evaluate the drainage capacity of the pipe network and respond quickly is particularly important.Based on the characteristics of different regional conditions,this study constructs a rainstorm waterlogging model based on the SWMM model,simulates and analyzes the urban waterlogging under different working conditions,and evaluates the drainage capacity of the pipe network system.By building a physical experiment platform,the waterlogging results under different working conditions are analyzed and verified.The results show that when the rainstorm return period in the study area is greater than the 20-year return period,the change of the location of the outlet along the river has no significant effect on the drainage capacity of the pipe network;When is greater than the 50-year return period,the influence of the change of upstream storage water volume on waterlogging is weakened.When the position of the outlet in the area changes from semi-submerged to fully exposed to the water surface,the degree of waterlogging change is the most obvious when the rainstorm occurs more than once in two years.When the storage volume is full for occurrence of rainstorm,the larger storage water body may cause stronger disturbance to the liquid change of the upstream pipe network.The research puts forward guiding suggestions for urban flood control and drainage during rainstorm.

关 键 词：城市内涝 机理模型 物理模型 城市调蓄水体 排水管网 

分 类 号：TU992[建筑科学—市政工程] TV122.1[水利工程—水文学及水资源]