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由于具有安全和地层适用性广等特点,盾构隧道施工技术在地铁建设中得到了广泛的应用。但是,受到工程地质条件和人为控制因素的影响,地铁盾构隧道施工期间常常会出现地表沉降现象。而想要进行地表沉降的控制,以便确保地铁施工的安全性,就要做好地铁盾构隧道施工期的地表沉降的监测。因此,本文对地表沉降问题进行了阐述,并对盾构施工过程中的地表沉降监测方法、方案等内容进行了分析,以便为关注这一话题的人们提供参考。
Due to its safety and wide applicability of strata, shield tunnel construction technology has been widely used in subway construction. However, due to the influence of engineering geological conditions and man-made factors, surface subsidence often occurs during the construction of subway shield tunnels. In order to control the subsidence of the ground in order to ensure the safety of the subway construction, it is necessary to monitor the surface subsidence during the construction of the subway shield tunnel. Therefore, this paper describes the problem of surface subsidence, and analyzes the monitoring methods and schemes of surface subsidence in the course of shield construction in order to provide reference for those who are concerned about this topic.