自８０年代的Ｍｏｎｋｓｖｉｌｅ坝开始，阶梯式消能工的应用范围已扩展到大中型工程，结合我国援外项目——老挝南果河水电站前池溢流陡槽的消能设计，对阶梯式消能工进行了分析和试验研究，结果表明：在设计流量条件下，阶梯消能工消能率达到７３％，且阶梯上不易产生空蚀破坏。同时，由于水流能量大部分在陡槽上消除，故能大大减少下游消力池的工程量 Since the Monksvile Dam of the 1980s, the application of stepped energy dissipators has expanded to large and medium-sized projects. Combined with the energy dissipation design of the overflow chute in the front pool of Namuohe Hydropower Station in our country, The results show that the energy dissipation rate of ladder energy dissipators reaches 73% under the designed flow conditions, and the cavitation damage is not easy to occur on the ladder. At the same time, most of the flow energy is eliminated on the chute, so it can greatly reduce the work load of the downstream stilling pool