地铁隧道建设规模不断扩大,工程建设期间经常需要判定工后沉降是否稳定,其关系到后期设备安装等工期计划。工程实践中常采用理论公式法、经验推算预测法及数值分析等方法。根据某地铁明挖隧道实例,采用上述三种方法判断研究工后沉降稳定问题,为合理安排工程筹划提供参考。 Subway tunnel construction continues to expand the scale of construction often need to determine whether the settlement after construction is stable, which is related to the installation of equipment such as the duration of the plan. Often used in engineering practice theoretical formula method, empirical prediction method and numerical analysis methods. According to the example of a tunnel digging clear tunnel, the above three methods are used to judge the stability of post-construction settlement and provide reference for reasonable arrangement of the project.