基于MIKE水动力模型对左岸排水建筑物防洪影响分析

Analysis on Flood Control Impact on Left Bank Drainage Buildings based on MIKE Hydrodynamic Model

南水北调工程对南北方水资源重新配置,保障区域协调发展,是国家重大战略性基础设施工程,工程安全平稳运行至关重要。随着极端天气频发,沿线多处左岸排水建筑物发生了不同程度的险情,对中线工程的安全运行造成了重大威胁,此次基于MIKE建立南水北调总干渠荥阳段1座典型的某左岸排水渡槽水动力学模型,进行防洪影响分析,分析洪水对左岸排水建筑物、总干渠及交叉河道可能产生的风险,提出相应的工程处理方案,消除或减轻南水北调工程防洪影响问题,对保障南水北调总干渠平稳运行及附近人民生命财产安全具有重要意义。

The South-to-North Water Diversion project is a major strategic national infrastructure project to reconfigure water resources in the north and south and ensure coordinated regional development,and the safe and stable operation of the project is crucial.With the frequent occurrence of extreme weather,many left bank drainage buildings along the route have encountered varying degrees of danger,which poses a major threat to the safe operation of the middle route project.Based on MIKE,a hydrodynamic model of a typical left bank drainage aqueduct in Xingyang Section of the main canal of the South-to-North Water Diversion Project is established to analyze the effect of flood control.It is of great significance to analyze the possible risks caused by flood to the drainage building on the left bank,main canal and the river crossing the main canal,put forward the corresponding project treatment plan,eliminate or reduce the flood control effect of the South-to-North Water Diversion project,and ensure the stable operation of the main canal of South-to-North Water Diversion project and the life and property safety of people nearby.