基于SWMM的城市洪水内涝模型研究

城市化程度的提高,直接改变了城市暴雨径流形成条件,使其雨洪运动特性发生了较大变化,城市防洪排涝问题日益严峻。文章以SWMM模型为基础,结合澳门大学横琴岛校区的实际资料模拟地面的溢流过程,并对造成溢流的可能原因地面不透水面积所占比例、管道粗糙度和管径进行量化分析比较,为城市土地规划利用和排水管网设计提供依据,有效减轻城市洪水内涝灾害。

Urban Flood Waterlogging Model Research Based on SWMM

With improvement in the level of urbanization, it has directly changed the conditions of urban storm runoff. So that rainwater motion characteristics changed greatly. Urban flood control and drainage problems become increasingly serious. Taking SWMM as a model, combining with the actual data, the overflow is simulated; also a comparison and analysis have been made among the causes, such as the proportion of impervious surface area, the pipe diameter and the pipe roughness. It can be provided as references for urban land use and drainage network with effectively reducing urban flood water logging disasters.