复杂环境下的市区长距离隧道围护结构施工技术

Construction Technology of Support Structure of Urban Long-distance Tunnel Under Complex Environment

结合无锡太湖大道改建工程,对市区长距离隧道施工过程中,需要避让多种地下管线造成的围护结构不连续的问题进行了分析。通过采用变更围护形式、围护跳仓后补缺及设置管线临搬集中通道等措施,有效解决了管线对围护结构的影响,可在类似工程中借鉴和推广。

Combined with the reconstruction project of Taihu Avenue in Wuxi, the paper analyzes the problem of discontinuity of support structure caused by various underground pipelines in the construction process of urban longdistance tunnel. The influence of the pipeline on the support structure is effectively solved by adopting measures such as changing the support form, filling up vacant support after the sequence construction, and setting up the centralized channel for temporarily moving the pipeline, which effectively solved the effect of pipeline on the support structure and can be used for reference and promotion in similar projects.