新建车站出入口上穿既有地铁6号线变形分析与控制技术

摘要

以新建车站出入口上穿既有地铁盾构区间为实例，分析了新建工程对既有地铁区间的变形影响。施工中采用深孔注浆加固措施，并采用自动化实时监测技术对既有区间进行监测，使地铁6号线区间结构变形控制在设计要求的范围内，能够确保既有地铁区间隧道结构和轨道的稳定和列车运行的安全。%This paper analyzes the deformation of the existing metro tunnel section impacted by the construction of the en-trance of a new metro station on the top of the existing metro tunnel section.With the technology of deep hole grouting to the soil and automatic real-time monitoring of the existing tunnel section,the structural deformation of the operating Metro Line 6 tunnel section is controlled to meet the requirement of design,which secures the stability of the existing subway tunnel structure and rail track,and the safety of the operation.