在对地面沉降要求不高的地区 ,挤压式盾构仍然是修建隧道的有力工具 ,但是由于挤压盾构对周围土体的扰动很大 ,如果盾构隧道邻近区域存在已有建筑物或管线 ,如若施工不当 ,盾构的推进可能对它们产生破坏性的影响。本文从理论上分析了挤压盾构施工扰动的机理和影响因素 ,并就工程监测实例 ,分析了隧道内力、隧道断面收敛变形、接触压力等随工程施工的变化规律。 In areas where land subsidence is not critical, crush shields are still a powerful tool for tunnel construction. However, due to the large disturbance to the surrounding soil by the crush shield, if there is an existing building in the vicinity of the shield tunnel or If the pipeline is improperly constructed, the advance of the shield may have a devastating effect on them. In this paper, the mechanism and influencing factors of construction tunneling are analyzed in theory, and the variation of tunnel internal force, the convergence of tunnel section and contact pressure with the project construction is analyzed.