基于SWMM模型的暴雨洪水模拟研究——以郑州大学新校区为例

Simulation of Rainstorm Flood Based on SWMM Model——Taking the New Campus of Zhengzhou University as an Example

随着气候变化和人类活动影响加剧,城市化水平进一步提高,城市区域面积急剧扩大,城市化所带来的水文效应使城市洪涝灾害出现频率不断增大。以郑州大学新校区为研究区域,应用SWMM模型对该区域在不同暴雨重现期、不同峰值比例、不同城市化程度和LID情境下进行暴雨洪水模拟。结果表明:暴雨雨型对模拟结果有重要的影响,该模型较好的预测了研究区域排水管网的排水能力,以及在不同情境下的模拟结果。

With the increasing influence of climate change and human activities, the level of urbanization has been further improved, the urban area has been expanded rapidly, and the hydrological effect brought by urbanization has increased the frequency of flood disaster. In this paper, taking the new campus of Zbengzhou University as the research area, the SWMM model is used to simulate the rainstorm flood in different regions of the rainstorm recurrence period, the peak value, the degree of urbanization and the LID situation. The results show that the storm rainfall pattern has an important influence on the simulation results. The model can predict the drainage capacity of the drainage network and the simulation results in different scenarios.