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本文首先对已有的侧槽溢洪道水力计算的研究成果进行了分析与评述。着重指出了札马林方法的错误。文中应用动量方程推导得出变底宽侧槽的水面线基本方程为: 通过对基本方程的分析,提出了图解法,保证了计算的准确性,与Hinds的“临界曲线”法相配合,形成了完整的计算方法。通过试验研究和工程实践,得出侧槽与过堰水流间的临界淹没比6k=0.5;提出了校核流量控制设计的概念;并对水力计算及设计原则等问题进行了探讨。文中附有算例。所提出的计算公式和方法经模型试验验证得到满意的结果。
In this paper, the research results of the hydraulic calculation of the existing side channel spillway are firstly analyzed and reviewed. Highlighting the error of Samaritan method. In this paper, we derive the basic equation of surface water line with wide bottom and wide bottom by using the momentum equation. By analyzing the basic equations, we put forward the graphic method to ensure the accuracy of the calculation, and with the “critical curve” method of Hinds, Complete calculation method. Through the experimental research and engineering practice, the critical submergence ratio between side channel and over-weir flow is 6k = 0.5. The concept of checking flow control design is put forward. The hydraulic calculation and design principles are also discussed. Text attached to an example. The proposed calculation formula and method are verified by the model test to get satisfactory results.