Therefore, it is of great significance to study the routing characteristics of flood caused by levee breach.
因此，研究堤防溃决之后洪水在城区内的演进规律具有重要的现实意义。
The changing trend of urban flood disaster mode and the effect of urbanization on characteristics of flood disaster are summarized.
总结了城市洪涝灾害成灾模式的变化趋势，及城市化对洪涝灾害成灾特性的影响。
Calculation results show that this model can simulate the characteristics of water flow in a floodplain river and can improve the capacity of flood routing simulating and predicting.
计算结果均表明，本文的一维水动力学模型能较好地模拟漫滩河道的过流特征，并改善了漫滩河道洪水演进的模拟与预测能力。
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