中文摘要：

随着城市化水平的不断提高,下垫面发生巨大变化,城市内涝问题频现,严重制约着城市的健康发展。以北京市朝阳区某规划小区为例,应用DHI开发的MIKE软件,建立了MIKE 21的二维水动力模型,在典型降雨情况下模拟了研究区域内的积水过程。采用城市内涝ArcGIS模型的计算结果对比分析。结果表明：MIKE 21模型的计算结果满足规范要求,较好地模拟了区域积水分布位置、深度、历时等,较ArcGIS模型的精度更高。研究成果为城市内涝灾害的治理提供了技术支撑,对城市小区规划、道路设计、海绵城市建设等方面具有重要的应用价值。

英文摘要：

With the rising level of urbanization,the underlying surface changes and the urban waterlogging problems appear frequently,which seriously restrict the healthy development of the city. Taking a planning community in Chaoyang District of Beijing for instance,MIKE developed by DHI are used to establish two-dimensional hydronic model-MIKE 21 to simulate waterlogging process of researched area under typical rainfall. The urban waterlogging ArcGIS model is established as a comparison model with MIKE 21. The results show that MIKE 21 model results meet the specification,and well simulate the waterlogging distribution location,depth and duration,which has the higher accuracy than ArcGIS model. The study provides the technical support for the management of urban waterlogging disaster. It also has an important application value on urban district planning,road designing and sponge city constructing.