基于实地勘测的城市雨洪模型研究

针对目前内涝分析采用的计算模型缺乏实地勘测数据,准确性难以验证这一问题,将实地勘察结果与雨洪模型的建立过程相结合,以合肥高校校园为例进行了实地勘测、模型构建和模拟结果分析。通过构建基于实测数据的SWMM模型,模拟不同降雨重现期情景下的地表径流、节点溢流等情况,结合实地调查结果进行分析,找出了导致校园发生内涝的具体因素。可推广应用于城市其他易涝区的研究,具有一定工程意义。

Research on Urban Rainfall Runoff Model Based on Field Survey

In view of the lack of field survey data and the difficulty in verifying the accuracy of the current calculation model used for waterlogging analysis, the field survey results and the establishment process of the rainfall runoff model are combined, and the field survey, model construction and simulation results are analyzed with the university campus in Hefei as an example. By constructing the SWMM model based on the measured data, the surface runoff and node overflow under different rainfall recurrence periods were simulated, and the specific factors leading to the waterlogging in the campus were analyzed in combination with the field investigation results. It can be popularized and applied to the research of other waterlogged prone areas in the city, and has great engineering significance.