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基于平面二维数学模型,采用数值模拟方法模拟了50年一遇洪水情况、不同开挖方案下安谷水电站泄洪渠的水流特性。结果表明,通过不断优化开挖方案,最终确定优化方案3为最优方案,该方案增加了行洪断面面积、降低了洪水位,有利于渠道行洪,开挖后对渠道消能防冲安全影响不大,且下游流速满足防洪标准。研究成果可为类似工程设计及应用提供参考。
Based on the planar two-dimensional mathematical model, the numerical simulation method is used to simulate the flood situation in 50 years and the current characteristics of the flood discharge canal in the Angu hydropower station under different excavation schemes. The results show that optimization program 3 is the optimal solution by optimizing the excavation program. The program increases the cross-section area of flood discharge and reduces the flood level, which is beneficial to flood discharge. After excavation, Little effect, and the downstream flow rate to meet flood control standards. The research results can provide reference for similar engineering design and application.