中文摘要：

结合工程实例分析超大直径泥水平衡盾构施工对地表沉降的影响，通过对实测数据的分析，得出超大直径泥水平衡盾构隧道施工过程中地表变形呈现先微量隆起、再沉降，第二次隆起直至最终的固结沉降的规律性，进一步提出盾构施工过程中对前方土体的扰动范围．此外，结合施工参数将地表稳定后的沉降量与Peck计算方法及镜像位移法进行了对比．为今后类似工程提供参考．

英文摘要：

Based on construction of the large diameter slurry shield, the surface settlement and its variation of different construction stages had been elaborated. The result show the ground is up heaved a little bit, sinks, and then is uplifted greatly until it long-term surface settlements. Furthermore, the disturbance range of the soil in front of the slurry shield was proposed. Combined with the construction parameters, surface subsidence after stabilization with Peck calculation method and image displacement method were compared. It is useful reference for similar projects in future.