Research on Flood Simulation Model in Zhengzhou City
Affected by climate and topographic conditions,Zhengzhou has experienced frequent extreme rainstorms and serious flood disasters in history.It is one of the 31 key flood control cities announced by the National Flood Prevention Office.MIKE series models were adopted to construct a flood simulation model for Zhengzhou based on key technical issues such as simulation of urban rainfall and flow generation,simu-lation of large regional confluence and flood evolution,and simulation of urban underground pipe network drainage,by considering the influ-ence of complex structures and river network of inland river system.The model was calibrated and validated using the measured rainstorm and flood data in 2011,2015 and 2021.The results show that the model simulation effect is good,and the calculated results are not much differ-ent from the actual measurement,which can be used for flood simulation evaluation in Zhengzhou.
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