摘要
大化水电站经过二十几年运行,水下检查溢流坝下游护坦(二道坝内)冲坑面积近45 m2,最大深度约0.5 m;在二道坝下游底板出现3个大小不等的淘洞,最大淘空体积近5.0 m3。根据破坏区域存在的部位及特殊运行要求,采用水下不分散混凝土对破损进行填补。目前运行良好。
After more than 20 years running, the scour holes, with an area of about 45m^2 and a maximum depth of about 0.5m, is found at downstream apron （inside the second dam） for overflow dam, and 3 scour holes of different sizes and with maximum scour volume of about 5.0m^3 are found at the downstream base slab of the sec- ond dam. Non-dispersible underwater concrete is used for repairing the scour holes based on the damaged posi- tions and special operation requirements, which works very well at present.
出处
《红水河》
2012年第6期126-129,133,共5页
Hongshui River
关键词
护坦
冲坑
不分散混凝土
大化水电站
apron
scour hole
non-dispersible concrete
Dahua hydropower station
