各国研究人员对台阶式斜槽溢洪道水力特性的研究越来越感兴趣。这一方面是由于ＲＣＣ筑坝技术取得很大的进步，另一方面是因为沿斜槽的消能量大，从而可以减小下游消力池的长度，已通过缩尺模型对各类台阶式斜槽溢洪道的水力特性进行了研究；但仍有好几个方面的问题需要进一步试验研究。 Researchers in various countries are more and more interested in the research of the hydraulic characteristics of the stepped spillway. This is partly due to the great progress made in RCC damming technology and the large energy dissipation along the chute to reduce the length of the downstream stilling basin. Hydraulic properties of trough spillway have been studied; however, there are still several problems that need further experimental research.