南水北调中线左岸排水渡槽洪水风险分析

Flood Risk Analysis of Drainage Aqueduct on Left Bank of Middle Route of South-to-North WaterDiversion Project

基于高精度地形,采用二维水动力学模型进行模拟计算,模拟宴曲沟左岸排水渡槽在现状地形条件下洪水演进过程,得到洪水最大淹没范围、最大水深、最大流速、淹没历时等水力要素,分析排水渡槽和总干渠洪水风险,为工程安全运行提供技术支撑。

Based on the high-precision terrain,the two-dimensional hydrodynamic model is used to simulate the flood routing process of the drainage aqueduct on the left bank of Yanqugou under the current terrain conditions.The hydraulic factors such as the maximum flood inundation range,the maximum water depth,the maximum flow velocity and the inundation duration are obtained,and the flood risks of the drainage aqueduct and the main channel are analyzed to provide technical support for the safe operation of the project.