云南水力发电2024，Vol.40Issue(z2)：63-67,5.DOI:10.3969/j.issn.1006-3951.2024.Z2.016
TB水电站地下洞室顶拱上仰无黏结预应力锚索施工技术
Construction Technology of Upward Non-bonded Prestressed Anchor Cables for the Arch of Underground Cavern of TB Hydropower Station
张利生 1周山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 size of underground powerhouses and main transformer tunnels in hydropower projects is large,and the stability requirements of surrounding rock are high.Through the exploration and summary of the construction of non-bonded prestressed anchor cables on the top arch of the underground powerhouse and main transformer tunnel of TB hydropower station,this paper has developed a set of construction methods for non-bonded prestressed anchor cables on the top arch of large section underground caverns.It solves the problem of strengthening the support for the safety and stability of the surrounding rock in the unfavorable geological section of the large section underground cavern roof arch,and suppresses the deformation of the roof arch surrounding rock.The maximum deformation of the factory building is only 5.2mm,which meets the design requirements and achieves good results.关键词
上仰无黏结/预应力锚索/TB水电站/地下洞室顶拱Key words
upward non-bonded/prestressed anchor cable/TB hydropower station/arch of underground cavern分类
建筑与水利引用本文复制引用
张利生,周山..TB水电站地下洞室顶拱上仰无黏结预应力锚索施工技术[J].云南水力发电,2024,40(z2):63-67,5.
