黃龍水庫面板混凝土裂縫處理技術(shù)

摘要: 黃龍水庫混凝土面板堆石壩面板裂縫處理, 本著治本為主, 治表為輔, 表本結(jié)合, 綜合處理的原則, 對(duì)大于0.2mm及貫穿性裂縫, 采用HK-G 系列環(huán)氧灌漿材料打孔灌漿, 表面涂刷水泥基滲透結(jié)晶型防水產(chǎn)品塞柏斯( XYPEX) 和涂刷PUA-75 聚脲彈性涂料增強(qiáng)表面抗拉和抗裂強(qiáng)度, 對(duì)小于0. 2 mm 以下非貫穿性裂縫可采用表面涂刷塞柏斯和聚脲彈性涂料. 處理后, 經(jīng)壓水試驗(yàn)和蓄水運(yùn)行表明, 處理效果較好, 滿足工程運(yùn)行要求.

關(guān)鍵詞: 黃龍水庫; 混凝土面板; 裂縫; 灌漿; 補(bǔ)強(qiáng)技術(shù)

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.