平原区暴雨内涝风险数值模拟研究

Numerical Simulation Study on Rainstorm Waterlogging Risk in Plain Area

采用水力学方法探讨平原区暴雨内涝风险数值模拟研究,采用MIKE11建立黄河故道一维水力学模型,采用MIKE21 FM建立区域二维水力学模型,采用MIKE FLOOD对一维、二维模型进行耦合计算,模拟区域1978、2000、2003年暴雨内涝演进过程和淹没范围等,计算结果与涝灾实际淹没情况及区域地形地貌基本相符,可为下一步洼地治理、涝灾应急预案制定等提供参考依据。

Numerical simulation of rainstorm waterlogging risk in plain area was studied by hydraulic method. The one-dimensional hydraulic model of ancient Yellow River channel was established by using MIKE11, and the two-dimensional hydraulic model of that was established by MIKE21 FM. Both models were coupling calculated by using MIKE FLOOD to simulate the waterlogging process and the submerged range in 1978, 2000 and 2003. The calculated results were basically consistent with the actual submerged range and regional topography,which could provide references for depression management and the formulation of waterlogging emergency plan.