台阶式溢洪道的消能及其应用价值的探讨

文中总结了溢洪道消能率的计算公式、消能率的影响因素、台阶式溢洪道的适用范围；对某水库的台阶式溢洪道和光滑面溢洪道的两个方案在效能效果、消力池长度等方面进行比较，分析了这两种方案各自的特点。结果表明，台阶式溢洪道消能主要集中在台阶段，而且相对于光滑面溢洪道，大大缩短了消力池的长度，降低了投资。

Research on Energy Dissipation and Applying Value of Stepped Spillway

This paper summarizes calculation formula of energy dissipation of stepped spillway, influence factor of energy dissipation and the applied range of the stepped spillway. This paper compares the project of stepped spillway of a reservoir with the project of smooth surface spillway of the same reservoir with references to the effect of energy dissipation and the length of the stilling basin, and then respectively analyzes the feature of the two projects. The result shows that the dissipation of the stepped spillway mainly concentrates on the steps, and compared with the smooth surface spillway, the stepped spillway greatly shortens the length of the stilling basin, thus decreases the investment.