Abstract: The steel-lined concrete behind turbine runner chamber of the unit 4 came off at Shuikou hydropower station, that will menace the unit safety operation. In this article the detecting method and treatment for gaps are introduced. The practice has shown that the detection and rehabilitation are satisfactory.?

摘要： 水口水电站4号机组水轮机转轮室钢衬混凝土出现脱空，影响了机组的安全运行。本文介绍了钢衬混凝土脱空的检测方法和处理方法，实践结果证明，处理结果有效。