基于水文水动力耦合模型的铜山城区洪水预报研究OA

A hydrological and hydrodynamic coupled river flood forecasting model for Tongshan urban area was constructed by coupling one and two dimensional hydrodynamic models based on the Rainfall runoff model.Using the Rainfall runoff model to simulate and calculate the flow process of the upstream section of the key flood control river as the boundary condition of the hydrodynamic model,the river flood routing calculation is carried out,and the water level and flow process of the key flood control section of the river are predicted in a rolling manner to achieve real-time analysis and prediction of river floods and possible surface floods.Combined with multiple historical flood data for calibration and verification,the results show that the model can simulate floods in Tongshan urban area well,which has important practical significance for supporting the whole process of"precipitation-production flow-convergence-evolution"and improving the"four predictions"ability of flood control in Tongshan urban area.