早强砂浆预应力锚杆在水电站地下厂房围岩支护中的应用
Application of Early Strength Mortar Prestressed Anchor Rod in Surrounding Rock Support of Underground Powerhouse in Hydropower Station
王军 1梁岩 1张楚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
依托某引水发电系统水电站地下厂房工程,通过预应力长锚杆支护施工,采用高强砂浆进行锚固,减少了与其他作业间的干扰,缩短了支护工期,迅速有效的抑制了因大跨度洞室开挖后引起施工过程中的围岩变形,恢复围岩的整体受力状态,提高了洞室开挖后的整体稳定性,有效保障了施工及运营期安全.
Abstract
The underground powerhouse project of a water diversion and power generation system hydropower station is supported by prestressed long anchor rods and anchored with high-strength mortar.It reduces interference with other operations,shortens the support period,quickly and effectively suppresses the deformation of the surrounding rock caused by the excavation of large-span caverns during the construction process,restores the overall stress state of the surrounding rock,improves the overall stability of the caverns after excavation,and effectively ensures construction safety and operation period.
关键词
早强砂浆/预应力锚杆/围岩/支护Key words
early strength mortar/prestressed anchor rod/surrounding rock/support引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据