缓坡度陡槽溢洪道阶梯消能研究与应用

作为一种新型的辅助消能工，阶梯式消能工得到较多的研究和应用，但以往的研究与应用主要集中于坡度较陡的溢洪道。本文在总结广东省多项水利工程阶梯式溢洪道试验研究的基础上，进行了4种坡度比阶梯溢洪道的模型试验研究，对缓坡度陡槽溢洪道应用阶梯式溢洪道的水力特性进行了研究探讨。给出了阶梯跌坎高度、阶梯跌坎间距等阶梯体形参数对消能效果及流动形态的影响规律，并对缓坡度陡槽溢洪道应用阶梯式溢洪道设计方法进行了探讨，可供类似工程参考。

Research and application of stepped energy dissipater spillway with gentle slope

The stepped energy dissipater spillways have been applied in many projects in Guangdong Province. Base on a few hydraulic model tests and project applications, the hydraulic characteristics of stepped energy dissipater spillway are discussed, in which 4 types of slope were tested. The impacts of step configuration parameters, such as step height, step spacing, etc., on the energy dissipation effect and flow regime for different slope spillways are compared. The design method of stepped energy dissipation spillway with gentle slope is presented in this paper. The study results would be of referential value for other projects.