摘要
新疆北部干渠的隧洞围岩均为第三系的砂岩、泥岩等,属极软岩,通过对软岩隧洞的开挖、支护、塌方的处理以及小洞径长隧洞工程施工中遇到的主要问题的处理,总结了一些经验,供今后软岩隧洞以及小洞径长隧洞施工时参考。
Wall rock of main tunnel in northern part of Xinjiang are sandstone and mudstone of Tertiary,which belonged to extremely weak rock.According to the problems met in excavation,supporting and protection,treatment on collapse and construction in long tunnel with small diameter,certain experiences were summarized for the constructions of similar tunnels.
出处
《资源环境与工程》
2009年第5期745-747,共3页
Resources Environment & Engineering
关键词
软岩隧洞
小洞径
输水隧洞
施工
支护
钢拱架
蠕变
塌方
冒顶
weak rock tunnel
short-diameter pinhole
water-conveyance tunnel
construction
support and protection
steel structure
creep
collapse
roof collapse
