基于不同降水等级的城区降水径流过程模拟

Simulation of Urban Precipitation Runoff Process Based on Different Precipitation Levels

采用衡水市城区降水径流实测资料,建立了暴雨及大暴雨、大雨、中小雨次降水径流关系,并进行参数检验。通过对3个不同降水量等级降水径流过程模拟分析,构建了变化环境下衡水市城区降水径流预报模型。经过检验,模型预报精度较高,为城区防洪排涝及管网设计提供参考依据。

Based on the measured data of precipitation runoff in Hengshui city,the relationship between rainstorm and big rainstorm,heavy rain,small and medium rainfall runoff was established,and the parameters were tested.Through the simu⁃lation and analysis of three different precipitation levels of precipitation runoff process,the precipitation runoff forecasting model of Hengshui city under changing environment was established.The results show that the prediction accuracy of the model is high,which provides a reference for flood control and drainage and pipe network design in urban areas.