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出洞是大型泥水平衡盾构法隧道施工中极其重要的工序。通过对上海市上中路隧道工程盾构出洞施工中地基加固、基座安装、止水装置安装、后靠体系建立、泥水处理、同步注浆等技术的总结,以及大型泥水平衡盾构出洞施工时应注意的问题及措施,可为类似软土地基的超大型泥水平衡盾构施工提供借鉴。
Out of the hole is an extremely important process in the construction of a large slurry balanced shield tunnel. Through the summary of the technology of foundation reinforcement, base installation, installation of water stop, establishment of backrest system, muddy water treatment and synchronous grouting in the tunnel construction of Shanghai Middle Road Tunnel, The problems and measures that should be paid attention to during construction can provide reference for the construction of very large mud-water balance shield similar to soft soil foundation.