Cavitation Corrosion of Tailrace Cone Treated by Contact Grouting,Wanjiazhai Hydropower Station

through analysis on the cavitation corrosion of the tailrace cones of six units,Wanjiazhai Hydropower Station,reasonable solution and treatment principle are raised.Treatment by grouting with cement-base materials featuring non-shrinkage and high flow of Model SH-Ⅲ results in expected effect.