梨园水电站导流洞混凝土堵头封堵施工  

Blocking construction of concrete plug for diversion tunnel of Liyuan Hydropower Station

作　　者：张义超[1] 卓战伟 于旭[1] 

机构地区：[1]中国人民武装警察部队水电第一总队,广西南宁530028

出　　处：《人民长江》2016年第11期58-60,共3页Yangtze River

摘　　要：梨园水电站施工期有两条导流洞泄流,大坝挡水前须永久封堵导流洞。介绍了导流洞永久封堵混凝土施工技术。封堵时采取分层分块的混凝土浇筑方式,即将堵头分为上下两段分层分块浇筑,并采取两期通水冷却等温控措施,按期完成了封堵。详细介绍了施工工艺及所采取的温控措施,施工经验可为类似的工程借鉴。There are two diversion tunnels for discharge during construction period of Liyuan Hydropower Station,which must be blocked for water storage after completion of the dam construction. The concrete construction technology for permanent blocking of the tunnels was introduced. In the blocking construction,the concrete was grouted in a layered and blocked way,namely,the blocking plug was divided into upper and lower parts for grouting. The two- stage water cooling measure was adopted and the blocking construction was completed on schedule. The construction experiences can be referred by the similar projects.

关 键 词：封堵施工 永久堵头 导流洞 梨园水电站 

分 类 号：TV551.1[水利工程—水利水电工程]