摘要
以红岩隧道 2 3m长坍方处理为例 ,介绍了管棚法处理特大坍方的应用技术。首先论述了管棚法处理坍方段的技术特点 ,然后针对坍碴体管棚施工卡钻与下管难的问题提出了具本解决措施 。
The treatment of the 23 m long Hongyan tunnel is taken as an example to introduce the application technology of handing extra-large landslide section by pipe-roof protection. Its technical features are described. Specifc solutions are put forward to drill pipe sticking and pipe laying difficulty. The importance of grouting in pipe-roof protection is also pointed out.
出处
《西部探矿工程》
CAS
2003年第2期108-110,共3页
West-China Exploration Engineering
