四连拱隧道图像三维重建超欠挖快速检测施工技术  

Four-span Arch Tunnel Image 3D Reconstruction Technology for Rapid Detection of Over-or under-Excavation during Construction

作　　者：谭剑 TAN Jian(China Railway 25th Bureau Group Third Engineering Co.,Ltd.,Changsha 410000,China)

机构地区：[1]中铁二十五局集团第三工程有限公司,长沙410000

出　　处：《价值工程》2024年第32期81-84,共4页Value Engineering

摘　　要：隧道施工过程中,隧道超欠挖控制是个难点。由于常规超欠挖检测方式占用时间较长,为避免因欠挖耽误隧道循环施工,往往会选择适当超挖。但隧道超挖带来的弊端较多,加大施工成本投入,故超欠挖快速检测控制在隧道开挖作业过程中显得尤为重要。The control of over excavation and under excavation in tunnel construction is a difficult point.Due to the long time required for conventional over excavation detection methods,appropriate over excavation is often chosen to avoid delays in tunnel cyclic construction caused by under excavation.However,there are many drawbacks brought about by over excavation of tunnels,such as increasing construction costs.Therefore,rapid detection and control of over excavation and under excavation are particularly important in the process of tunnel excavation operations.

关 键 词：隧道 超欠挖 快速检测 

分 类 号：U455[建筑科学—桥梁与隧道工程]