东北寒冷地区某混凝土重力坝溢流面结构缝修补处理  

Repair of structural joints on overflow surface of a concrete gravity dam in northeast cold area

作　　者：陆越宽 杨宏亮 高浩 杨宇 邵益民 LU Yuekuan;YANG Hongliang;GAO Hao;YANG Yu;SHAO Yimin(Taipingwan Power Plant of Lvyuan Hydropower Company,Northeast Branch of State Grid)

机构地区：[1]国网东北分部绿源水力发电公司太平湾发电厂,辽宁丹东118000 [2]中国电建集团华东勘测设计研究院有限公司,浙江杭州310014

出　　处：《大坝与安全》2022年第1期64-67,71,共5页Dam & Safety

摘　　要：东北寒冷地区某水电站在运行一段时间后,大坝溢流面等部位出现了结构缝破损,严重影响大坝的安全性和耐久性。采用低温高形变修补技术方案,对溢流面结构缝进行环氧砂浆功能修复及表面防护处理,经大坝泄洪考验,结构缝表面良好,未出现损伤,为北方寒冷地区相关混凝土缺陷处理提供参考。A hydropower dam in northeast cold area suffers from structural joints damage on the over⁃flow surface,which will seriously affect the dam safety and durability.The repair scheme of low tempera⁃ture and large deformation is adopted to carry out the function repair by epoxy mortar and surface protec⁃tion for structural joints on overflow surface.After treatment,the surface of structural joints is in good condition without damage during flood discharge,worth reference for treatment of similar concrete de⁃fects in cold area.

关 键 词：溢流面 结构缝 环氧砂浆 表面防护 

分 类 号：TV642.3[水利工程—水利水电工程]