连城山隧道大跨度极软岩大变形段施工工法

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(中交二公局第三工程有限公司,陕西 西安 710016

  要:结合宝汉高速公路上的双向六车道公路隧道-连城山隧道的施工实例,文章分析了该大跨度隧道在极软岩大变形段的施工工法,总结其成功的施工经验及施工过程中的注意事项,旨在解决大跨度隧道在极软岩大变形段的施工病害,确保大跨度隧道在极软岩大变形段的施工质量与安全,为以后类似工程情况的隧道施工提供借鉴。

关键词:隧道;工法;施工;极软岩;大跨度;大变形 

中图分类号:U455        文献标识码:A

Construction Method of Large Span and Extremely Soft Rock Large Deformation Section in Liancheng Mountain Tunnel

KOU ShuaiLIU Hui

CCCC-SHEC Third Highway Engineering Co., LTD. Xi'an 710016China

Abstract: Combined with bao han highway two-way six-lane highway tunnel together - mountain tunnel construction as an example, this paper analyzed the large span tunnel in extremely soft rock large deformation section construction technique, summarized its successful construction experience and matters needing attention in construction, aimed at resolving the large span tunnel in extremely soft rock large deformation period of construction, ensured construction quality and safety in extremely soft rock large deformation period of large span tunnel, which could provide reference for future similar projects.

Key words: tunnelMethod of workconstructionExtremely soft rockLarge spanlarge deformation


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