MIKE11在大凌河河道溃堤洪水模拟中的应用

Application of MIKE11 in Inrush Flood Simulation of Daling River Channel

本文在详细分析了MIKE11模型基本理论基础上,利用模型对大凌河干流河道的溃堤洪水过程进行模拟分析,并结合大凌河河道堤防工程实际状况分别选取实测洪水、过流能力、水量平衡以及各频率间结果,对MIKE11模型模拟结果的准确性、合理性进行验证。研究表明:大凌河朝阳段防洪保护区河道溃口洪水过程可采用文中所构建的模型进行模拟分析,其模拟结果能够较好地反映溃口洪水实际状况,对于准确还原和分析洪水发生过程具有重要意义。

The model is utilized for simulating and analyzing inrush flood process of Daling River main stream channel on the basis of analyzing basic theory of MIKE11 model in details in the paper. Embankment project actual condition of Daling River Channel is combined for respectively selecting actual measurement flood,discharge capacity,water balance and results among all frequencies,and verifying the accuracy and rationality of MIKE11 simulation results. The research shows that the model constructed in the paper can be adopted for simulation and analysis aiming at the river inrush flood process of Daling River Chaoyang Section Flood Protection Region. The simulation results can better reflect the actual situation of inrush flood better,which has important significance to accurately restoring and analyzing the flood process.