隧道洞口坡积体浅埋段进洞施工技术探讨
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西安方舟工程咨询有限责任公司

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Discussion on the Construction Technology of Shallow Buried Segment of Tunnel Portal Slope Deposit
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    摘要:

    随着山区交通基础设施的快速发展,山岭隧道的建设日益增多。隧道洞口坡积体由于其特有的地质结构和物质组成,传统的施工方法在此类地质条件下往往存在安全风险大、施工效率低等问题,给隧道施工带来了诸多挑战。本文以西天山特长隧道出口端洞口坡积体浅埋段进洞施工为例,对坡积体地质特性进行深入分析,重点阐述开挖前的预处理措施、施工过程中的关键技术措施,以及施工监控与反馈机制,从而显著提高了隧道施工的安全性,解决了隧道洞口坡积体浅埋段进洞难题,对其他类似项目具有借鉴意义。

    Abstract:

    With the rapid development of transportation infrastructure in mountainous areas, the construction of mountain pass tunnels has become increasingly common. The slope deposits at tunnel portals, due to their unique geological structure and composition, often pose safety risks and low construction efficiency when using traditional construction methods in such geological conditions, posing many challenges to tunnel construction. Taking the shallow buried section of the slope deposits at the portal end of the Xitian Shan Long Tunnel as an example, this paper conducts in-depth analysis of the geological characteristics of slope deposits, focusing on the pre-excavation treatment measures, key technical measures during construction, and the construction monitoring and feedback mechanism, thus significantly improving the safety of tunnel construction and solving the problem of shallow buried section of slope deposits at tunnel portals. It has reference significance for other similar projects.

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  • 收稿日期:2024-11-09
  • 最后修改日期:2024-12-25
  • 录用日期:2024-12-26
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