城市地铁工程隧道扩挖施工技术研究

Research on Tunnel Expansion Construction Technology of Urban Subway Engineering

文章以具体工程案例为切入点,结合城市地铁工程隧道实际施工需求及施工背景,明确施工中的重难点,分析地铁工程隧道扩挖施工技术。实践证明,地铁工程隧道扩挖施工内容较为复杂,较多的细节工作会与既有的工程产生交互关系。在不破坏原有施工方案及施工环境的基础上,必须落实好细节调整,加强工程支护管理、做好防排水规划、构建立体化的工程管控方案,这样才可以全面提升地铁工程隧道施工有效性。

Taking specific engineering cases as the starting point, combined with the actual construction needs and construction background of urban subway engineering tunnels, this paper clarifies the key and difficult points in construction, and analyzes the expansion construction technology of subway engineering tunnels. Practice has proved that the content of tunnel expansion in subway engineering is relatively complex, and many detailed work will have an interactive relationship with existing projects. On the basis of not destroying the original construction scheme and construction environment, it is necessary to implement detailed adjustment, strengthen engineering support management, do a good job in waterproof and drainage planning, and build a three-dimensional engineering control scheme, so as to comprehensively improve the effectiveness of subway engineering tunnel construction.