At first,the theory and the happening conditions of cavitation damage are presented,at the same time,the reasons of cavitation damage and the position where the cavitation damage usually takes place are analyzed in tunnel spillways.

This paper introduces a new kind of gate, the inverted-hook gate without gate-slot, the arrangement form of which can reduce the cavitation damage effectively, decrease the head loss to the utmost extent, and avoid the generation of the cavity sources.

Fabrication and Corrosion Failure of PVD Coatings on Magnesium Alloy;

Through the analysis on the causes of the corrosion damage of salt f ield s concrete buildings in Jiangsu Province, this paper probes into the influe nce of the concrete corrosion damage on the hydraulic structure.

Rehab of erosion damages in outlet No.2 of the Liujiaxia Hydropower Station;

Corresponding Relationship Among the Indexes of Highway Cut Slopes Erosion in Loess Area;