水利水电技术（中英文）2024，Vol.55Issue(7)：55-69,15.DOI:10.13928/j.cnki.wrahe.2024.07.005
耦合一二维水动力模型的城市社区暴雨内涝模拟研究
Urban community stormwater inundation simulation research on coupling one-and two-dimensional hydrodynamic models
摘要
Abstract
[Objective]Against the backdrop of global climate change and rapid urbanization,the risk of urban flash flood disas-ters is continuously increasing.Hydrological and hydraulic models are crucial tools for understanding the mechanisms behind flash floods.Constructing a scientifically reasonable flash flood model is currently a research hotspot.[Methods]By coupling a one-di-mensional pipe network hydraulic model(SWMM)and a two-dimensional hydraulic model(LISFLOOD-FP),a flash flood model at the urban community scale was established.A university community was selected as the study area,and multiple scenarios of measured precipitation and design storms were simulated for flash flood analysis.[Results]The result indicate that:(1)Using the measured precipitation on July 11,2023,as an example,the simulation result exhibit high consistency with the actual situa-tion,demonstrating that the accuracy of the coupled model meets the needs of flash flood simulation at the urban community scale.(2)Taking 1 a,5 a,10 a,20 a,50 a,and 100 a return period design storms as examples,with increasing rainfall,the load on the stormwater pipe network,inundation area,and depth significantly increase.The number of high-risk pipe network segments grows by 3.17 times,and the inundation area expands by 170％.The inundation area and depth are positively correla-ted with the return period.In the 20-year to 50-year return period range,the community's drainage capacity reaches saturation.(3)The simulation result show that the high-risk areas of flash floods in the study area are mainly distributed along the bounda-ries of the teaching area,the southern side of the residential area,and the junction area between the teaching and residential are-as,requiring attention from relevant authorities.[Conclusion]The research result demonstrate that the flash flood model,cou-pling SWMM and LISFLOOD-FP,exhibits high accuracy in simulating the status of stormwater pipe networks and surface water inundation.It is suitable for flash flood simulation and analysis at the urban community scale.关键词
城市内涝/降水/洪水/SWMM/LISFLOOD-FP/模型耦合Key words
urban waterlogging/precipitation/flood/SWMM/LISFLOOD-FP/model coupling分类
水利科学引用本文复制引用
陈朝晖,李鹏,张煜洲,王品,王锣洋,娄艺涵,肖刘涛,胡潭高..耦合一二维水动力模型的城市社区暴雨内涝模拟研究[J].水利水电技术（中英文）,2024,55(7):55-69,15.基金项目
国家自然科学基金项目(41807506) （41807506）
浙江省基础公益研究计划项目(LY19D010004) （LY19D010004）
2023年浙江省大学生科技创新活动计划(新苗人才计划)项目(2023R445030) （新苗人才计划）
