黄龙水库面板混凝土裂缝处理技术

黄龙水库面板混凝土裂缝处理技术

摘要: 黄龙水库混凝土面板堆石坝面板裂缝处理, 本着治本为主, 治表为辅, 表本结合, 综合处理的原则, 对大于0.2mm及贯穿性裂缝, 采用HK-G 系列环氧灌浆材料打孔灌浆, 表面涂刷水泥基渗透结晶型防水产品塞柏斯( XYPEX) 和涂刷PUA-75 聚脲弹性涂料增强表面抗拉和抗裂强度, 对小于0. 2 mm 以下非贯穿性裂缝可采用表面涂刷塞柏斯和聚脲弹性涂料. 处理后, 经压水试验和蓄水运行表明, 处理效果较好, 满足工程运行要求.

关键词: 黄龙水库; 混凝土面板; 裂缝; 灌浆; 补强技术

Abstract :A comprehensive treatment is made in handling the crack of the concrete faced rockfill damfaceplate in Huanglong Reservoir .
For the throughcrack wider than0 .2 mm, the grouting by HK- Gepoxy grouting materials withseepage crystal XYPEXand elastic PUA-
75 brushing onthe surface is applied to boost up surface tensile strength and breaking resistance , while for the non-through crack less
than 0 .2 mmin widthis dealed with XYPEXand PUA- 75 painting onthe surface . The effect is proved to be qualifiedin constructionby
water pressure test and storage operation.