中缅油气管道工程隧道群软弱围岩地质防塌方技术

Prevention Technology of Collapse on Condition of Soft Rock Tunneling-Group of Sino-Burma Oil and Gas Transportation Trunk Line

中缅油气管道工程穿越60余座隧道,隧道位于云南、贵州两省复杂多变的地质条件下隧道的开挖、超前地质预报、超前支护是保证作为控制性工程如期完成贯通目标的核心,也是保证中缅油气管道顺利接通的重要环节。提高软弱围岩隧道施工水平,预防变形和塌方,确保施工安全成为隧道群工程的首要任务,如期、安全、保质完成此目标的核心是判别软弱围岩隧道工程特点,落实好"三超前、四到位、一强化"相应措施及技术关键环节要求。

Sino-Burma oil and gas transportation trunkline involves 60 tunnels,which lay in Yunan and Guizhou province. the core targets of the engineering must realize the tunnel group getting through as respect of receiving oil and gas from Burma. the measures on the targets above should be taken with the prediction,the preprotection, the quick-closing and the intensive inspection according to the soft-rock conditions involved.