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邻地铁运行线的深基坑工程施工将改变隧道周围土体的应力状态,使临近地铁隧道产生变形,从而影响隧道的正常使用和安全,因此,邻地铁基坑施工需要对隧道采取保护措施。介绍大上海会德丰广场深基坑工程施工中对地铁隧道采取的施工保护措施、动态控制及监测技术等,对今后同类工程施工有一定的借鉴意义。
Construction of deep foundation pit adjacent to the subway line will change the stress state of the soil around the tunnel, causing deformation near the subway tunnel, thus affecting the normal use and safety of the tunnel. Therefore, the construction of the adjacent foundation pit needs to take protective measures for the tunnel. This paper introduces the construction protection measures, dynamic control and monitoring technologies adopted for the construction of deep foundation pits in Huidefeng Square, Shanghai, and provides some references for the construction of similar projects in the future.