基于DHI MIKE模型的城市内涝模型应用研究

Research on the Application of Urban Waterlogging Model Based on DHI MIKE Model

为解决城市内涝带来的问题,选择降雨丰富且频繁的岳阳市岳阳楼区,拟定4个重现期降雨,基于DHI MIKE构建内涝模型,从满管状态和现象等方面评估管网的输水能力。结果显示,岳阳楼区设计排水能力偏低,满管现象严重,其中2年重现期降雨满管高达50%,表明此研究区域设计标准未达标。由此提出改进建议,为岳阳楼区未来的排洪防涝建设提供科学理性的依据。

In order to solve the problems brought by urban waterlogging,the study selects Yueyanglou District,Yueyang City where it rains a lot and frequently,prepares 4 recurrence interval raining,constructs waterlogging model based on DHI MIKE,and evaluates water-carrying capacity from full package state and phenomenon.The results show that drainability design ability of Yueyanglou District is relatively low,full package phenomenon is serious,and the tubules are as high as 50%during the two-year return period.The design standards of the study area are not up to the standard.The model analysis of this study can provide scientific and rational basis for the construction of flood discharge and waterlogging prevention in Yueyanglou District in the future.