基于MIKE21和MIKE Urban耦合的湖区平原城市内涝模拟应用研究

Research on the Waterlogging Simulation of the Lakeshore Plain City Based on MIKE21 and MIKE Urban Coupling Model

通过构建MIKE21和MIKE Urban耦合模型,将调蓄设施和强排泵站纳入考虑,对岳阳市地下管网与陆面漫流进行耦合计算,得到不同重现期不同历时暴雨产生的共12种情景下的内涝情形。结果表明:岳阳市内涝主要影响范围为内湖周边地势低矮处,模拟出的内涝点与研究区主要积水点分布情况一致;模型模拟结果合理可靠,可为湖区平原城市内涝防治工作提供参考。

This paper chooses Yueyang City as a vase study to construct MIKE21 and MIKE Urban coupling model.The storage facilities and the strong pumping station are taken into account. A total of 12 kinds of waterlogging scenarios are obtained. The results show that the main influencing range of waterlogging in Yueyang is the low top of the lake,and the simulated waterlogging point is consistent with the distribution of the main water points in the study area. The model simulation results are reasonable and reliable,which serve as a reference for the prevention and control of waterlogging in the lakeshore cities in plains.