摘要
为解决高寒高海拔地理环境和软岩地质条件下,西藏拉洛水利枢纽工程德罗引水隧洞变形与塌方事故频发且处理施工难度大、危险性高的问题,通过对传统变形及塌方处理技术进行优化及组合,采用“超前支护+刚性支护+柔性支护+有序排水”的方案,形成了一套完整的、适用于高寒高海拔地区深埋软岩长引水隧洞的变形与塌方处理施工技术。监测结果表明,该技术取得了良好的围岩处理效果。研究成果可为类似工程提供借鉴。
In order to solve the problems of deformation, frequent collapse difficult and dangerous construction of the Deluo diversion tunnel of the Laluo Hydro Project in Tibet, through the optimization and combination of the traditional deformation and landslide treatment technologies and adopting the the scheme of “advanced+rigid+flexible support+orderly drainage”system, a complete set of deformation and collapse treatment technology for long diversion tunnel in deep soft rock at high altitude and cold area has been formed.The results showed that surrounding rock was well treated with this technology.The research results could provide references for similar Projects.
作者
丹增
刘杉
冯云龙
达娃索朗
DAN Zeng;LIU Shan;FENG Yunlong;Dawasuolang(Administration of Laluo Water Control Project and Irrigation Area of Tibet Autonomous Region,Lasa 450000,China;Jiangsu Kexing Project Management Co.,Ltd.,Nanjing 210000,China)
出处
《水利水电快报》
2022年第11期44-47,53,共5页
Express Water Resources & Hydropower Information
关键词
软岩长隧洞
围岩变形
塌方
处理技术
德罗引水隧洞
拉洛水利枢纽工程
西藏
long tunnel in soft rock
deformation of surrounding rock
collapse
treatment technology
Deluo diversion tunnel
Laluo Hydro Project
Tibet
