摘要
为解决随着城市内涝问题日益严重的问题,以广州市番禺区政府周边区域为研究对象,通过SWMM和LISFLOOD-FP耦合模型对研究区进行暴雨内涝模拟,模拟LID设施在不同暴雨重现期的径流削减效果,对不同淹没特点的内涝区考虑其影响因素的权重,通过AHP-TOPSIS研究方法得出LID设施的最优布置方案对研究区进行改造。结果表明:①对“20220804”短历时暴雨进行模型验证,表明模型可以较为真实地反映研究区淹没范围及水深,有较好精度;②对耦合模型进行重现期为2、5、10、20、30 a降雨模拟,结果表明盛泰路与东兴路交叉口、钻汇广场、清河中路、大北路、富华中路、桥兴大道、光明北路,繁华路、禺山大道和光明南路所处街区,解放路、解放大街和环城西路所在街区为内涝易发生地。③在满足调蓄容积条件下,设计由生物滞留带、雨水花园、绿色屋顶构成的10种方案,考虑不同内涝区影响因素的权重,利用AHP-TOPSIS法对10个LID设施布置方案的综合效益进行分析,最终得出不同淹没特点内涝区的最优LID设施改造方案。
To address the increasingly serious problem of urban waterlogging,we chose the surrounding area of the Panyu District govern⁃ment in Guangzhou as our research subject.Using the SWMM and LISFLOOD-FP coupled model,we simulated the urban rainstorm water⁃logging in the study area.We also simulated the effects of LID facilities on runoff reduction under different rainfall recurrence periods.We considered the weight of influencing factors to determine the optimal layout plan for LID facilities in the study area using the AHP-TOPSIS research method.The goal is to guide urban transformation.The results indicate that:①he model accurately reflects the extent of inundation and water depth in the study area during the heavy rainfall event on“20220804”.②Based on simulation results of rainfall events with return periods of 2 years,5 years,10 years,20 years,and 30 years,certain areas such as the intersections of Shengtai Road and Dongxing Road,Zhuanhui Square,Qinghe Middle Road,Dabei Road,Fuhua Middle Road,Qiaoxing Avenue,Guangming North Road,as well as blocks where Fanhua Road, Yushan Avenue, Guangming South Road, Jiefang Road, Jiefang Street, and Huancheng West Road are located, areprone to waterlogging. ③We designed a total of 10 different schemes consisting of bioretention zones, rain gardens, and green roofs, takinginto account the storage capacity. By considering the weight of different factors influencing waterlogging in each area, we conducted a compre⁃hensive analysis of the benefits of the 10 LID facility layouts using the AHP-TOPSIS method. Consequently, we obtained the optimal LID fa⁃cility retrofitting schemes for different inundation characteristics.
作者
吴京戎
蒋翔
WU Jing-rong;JIANG Xiang(School of Civil Engineering,Architecture and Environment,Hubei University of Technology,Wuhan 430068,Hubei Province,China;Hubei University of Technology,Engineering and Technology College,Wuhan 430068,Hubei Province,China)
出处
《中国农村水利水电》
北大核心
2024年第4期74-82,共9页
China Rural Water and Hydropower
基金
国家自然科学基金面上项目(42071264)
湖北省建设科技计划项目(2021082)。
