薄山水库输水道消能工气蚀研究

Research on Cavitation of Energy Dissipator for Water Delivery Conduit of Boshan Reservoir

河南省薄山水库输水道出口消力塘采用四级消能工进行消能。 由于高速水流产生的气蚀破坏，消能工遭到严重破坏。为解决此问题，进行了水工模型实验。根据实验资料，决定采用坡顶墩替代原三角形分水墩。经运行多年，消能情况良好。另外，对气蚀破坏的原因及处理改善措施作了比较完整的论述，并对高速水流消能工的设计及运行管理提出了一些建议。

The four-step energy dissipator had been adopted as stilling basin for the outlet of water delivery conduit of the Boshan Reservoir in Henan Province. Because of the cavitation damage owing to the high-velocity flow, the energy dissipator has been faulted seriously. For solving this problem, the hydraulic model experiments are carried out. According to the experimental data, the shoped-top piers are adopted instead of the original triangular baffle piers. The practical operation of many years shows that the situation of energy dissipation is well. The causes of cavitation damage and their improving measures are discussed perfect- ly. And for the design and operation of energy dissipator for high-velocity flow, some suggestions are presented.