云南水力发电2024，Vol.40Issue(z2)：75-79,5.DOI:10.3969/j.issn.1006-3951.2024.Z2.019
TB水电站主变洞高边墙深孔预裂施工技术
Construction Technology of Deep Hole Presplitting for High Side Wall of Main Transformer Tunnel in TB Hydropower Station
张利生 1刘金山1
作者信息
- 1. 中国水利水电第十四工程局有限公司,云南 昆明 650041
- 折叠
摘要
Abstract
The excavation and support quality of the main transformer tunnel in hydropower stations play a decisive role in its structural safety.The excavation of the high side wall of the main transformer tunnel is limited by conventional construction equipment and techniques,making quality control difficult.By optimizing and improving conventional construction equipment and techniques,deep hole presplitting construction technology is adopted for the excavation of high side walls in the main transformer tunnel of TB hydropower station.It can achieve the effects of smooth excavation contour lines,no staggered joints,excellent overall forming quality,reduced technical overexcavation,and overall stability of the surrounding rock of the tunnel.关键词
水电站/主变洞/高边墙/深孔预裂Key words
hydropower station/main transformer hole/high side wall/deep hole presplitting分类
建筑与水利引用本文复制引用
张利生,刘金山..TB水电站主变洞高边墙深孔预裂施工技术[J].云南水力发电,2024,40(z2):75-79,5.
