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一直以来,地铁盾构施工拥有安全、智能、快捷、地层实用性广等特点。在国内的地铁工程项目建设中,盾构施工法得到广泛的应用。但是项目工程的地质条件会对这一施工方法产生影响。在掘进过程中,也会受到人为影响,导致地表出现沉降。本文在分析盾构施工引起的地层变形以及引起地表沉降的原因和变形机理基础上,对地表沉降的具体控制进行分析,希望能够对今后的盾构施工有所帮助。
All along, the subway shield construction has a safe, intelligent, fast, widely applicable strata and other characteristics. In the construction of subway project in China, shield construction method has been widely used. However, the geological conditions of the project will have an impact on this construction method. In the process of excavation, it will also be affected by man-made, resulting in the settlement of the surface. Based on the analysis of the formation deformation caused by shield construction and the cause and deformation mechanism of surface subsidence, this paper analyzes the concrete control of surface subsidence and hopes to be helpful for the future shield construction.