圆梁山隧道进口深埋软岩段施工技术探讨

Discussion on Construction Technology of Deep-buried Soft Section of Entrance Portion of Yuanliangshan Tunnel

系统介绍了圆梁山隧道DK352+775～DK353+275深埋软岩段开挖、支护施工过程中采用的技术措施,在开挖爆破、超挖控制、洞身稳定、初期支护、安全防护等方面进行了理论联系实际的探讨,为类似工程施工提供了可借鉴的经验.

This article introduces the technical measures taken in the excavation and reinforcement of the deep-buried soft section of Yuanliangshan tunnel （DK352 ＋775 - DK353 ＋ 275） and discusses on such matters as excavation blasting, overbreak control, tunnel stability, primary reinforcement and safety protection, which can provide reference for similar works in the future.