基于BIM的辅助坑道进正洞挑顶施工技术
Bim-based jacking construction technology for auxiliary tunnel
刘双丽1
作者信息
- 1. 中铁十八局集团第四工程有限公司 天津 300131
- 折叠
摘要
辅助坑道进正洞挑顶施工工艺复杂、施工难度大、施工安全风险突出,是隧道施工中的主要难点.本文结合东祁连山隧道斜井坑道进正洞挑顶施工,提出采用小导洞+弧形拱架锁口法施工方案,利用BIM技术建立三维模型,实现对辅助坑道进正洞挑顶施工工艺过程模拟及可视化技术交底,利用BIM技术提前模拟锁口钢架的加工尺寸,确保现场交叉口处断面圆顺,达到辅助坑道进正洞挑顶施工高效安全,成功解决了辅助坑道的施工难题,达到了预期目标,可为同类工程施工提供参考.
Abstract
the construction technology of the auxiliary tunnel is complex,the construction is difficult,and the construction safety risk is prominent,it is the main difficulty in tunnel construction.In this paper,the authors propose the construction scheme of small pilot tunnel and arch-frame lock-in method in connection with the roof-lifting construction of the main tunnel of the inclined shaft of the East Qilian Mountains Tunnel,and establish a three-dimensional model using BIM technology,to realize the technical process simulation and visualization of the top-lifting construction of the main entrance of the Auxiliary Tunnel,BIM technology is used to simulate the processing size of the lock-in steel frame in advance,so as to ensure the roundness of the cross-section at the site intersection,to achieve high-efficient and safe construction of the auxiliary tunnel into the main tunnel,the construction of the auxiliary tunnel successfully solved the difficulties,achieved the expected goal,can provide a reference for similar engineering construction.
关键词
隧道施工/BIM技术/辅助坑道/斜井/挑顶施工Key words
tunnel construction/BIM technology/auxiliary tunnel/inclined shaft/jacking construction引用本文复制引用
出版年
2024
NETL
NSTL
万方数据