基于MIKE URBAN的大亚湾澳头圆盘区域内涝模拟及排涝对策  

Waterlogging Simulation and Drainage Countermeasures of Aotou Yuanpan Area in Daya Bay Based on MIKE URBAN

作　　者：谭雨欣 吴端炜 TAN Yuxin;WU Duanwei(Central&Southern China Municipal Engineering Design and Research Institute Co.,Ltd.,Wuhan 430000,China)

机构地区：[1]中国市政工程中南设计研究总院有限公司,湖北武汉430000

出　　处：《人民珠江》2023年第5期18-25,44,共9页Pearl River

摘　　要：在城市化、极端暴雨和潮汐水位等多重影响下,沿海城市内涝情况严峻。为了有效评估沿海城市的内涝风险并提出针对性的内涝防治策略,采用MIKE URBAN软件对大亚湾澳头圆盘区域进行管网排水能力分析及城市内涝模拟。结果表明:圆盘86%的现状管网设计重现期在1年一遇以下,总积水面积为631 824 m^(2),积水时间在24 h以上,其内涝是低排水管网标准和低排涝标准双重因素共同影响的结果。通过独立圆盘汇水区并新建32 m^(3)/s的泵站,在中兴中路、北澳大道、进港路新建箱涵,可把圆盘区域涝水直接排至淡澳河,内涝总积水面积降至5 248 m^(2),积水深度和积水时间分别降至0.15 m以下和0 h,圆盘区域内涝可得到有效缓解。该研究对澳头老城区排涝设施的改造及内涝防治提供了解决思路,对同类型工程具有一定的参考意义。Under the multiple impacts of urbanization,extreme rainstorms,and tidal level,the waterlogging situation in coastal cities is severe.To effectively assess the risk of waterlogging in coastal cities and propose targeted waterlogging prevention and control strategies,this study employs MIKE URBAN to analyze the drainage capacity of the pipe network and simulate urban waterlogging in Aotou Yuanpan of Daya Bay.The results show that the design frequency of 86% current pipe network is less than once a year,and the total waterlogged area is 631824 m^(2),with the water retention time exceeding 24 h in Aotou Yuanpan.Therefore,the waterlogging is caused by the low drainage standards of the pipe network and the riverway.The waterlogged water can be directly discharged to Danao River by setting up a 32 m^(3)/s pumping station and building new culverts on Zhongxing Central Road,Beiao Road,and Jingang Road in the independent Yuanpan catchment area.Meanwhile,the total waterlogged area can be reduced to 5248 m^(2),and the water depth and retention time can be lowered to less than 0.15 m and 0 h respectively,thus effectively alleviating the waterlogging in Aotou Yuanpan.This study provides a solution for the reconstruction of drainage facilities and the prevention and control of waterlogging disasters in Aotou Old Town,which carries certain reference significance for engineering projects of the same type.

关 键 词：内涝模拟 MIKE URBAN MIKE FLOOD 沿海城市 大亚湾 

分 类 号：TV87[水利工程—水利水电工程]