关键词: 西溢洪道, 单组分聚脲, 缺陷处理

Abstract: Various concrete defects, such as denudation, carbonization, cracking and protection materials falling off, were detected on the gate pier, wing wall, and overflow surface of the west spillway of Huairou reservoir in 2015, which seriously affected the safe operation of the reservoir' and the treatment of the concrete defects was necessary. Aiming at the existing concrete defects, optimization and improvement of defects treatment for the western spillway in 2007 were carried out. This paper introduces the treatment methods, materials and construction technology adopted for different concrete defects of the west spillway. By working test for one year, the treatment was proved that it not only eliminated the potential safety hazard but also improved the durability and aesthetics of the concrete of the western spillway, which is worthy reference.

Key words: west spillway, single component polyuria, defect treatment