盾构穿越软土运营地铁双圆隧道的施工技术

Construction Technology of Shield Underpassing Double Circle Tunnel of Metro in Operation in Soft Soil

为降低穿越施工对运营地铁的影响,确保运营地铁结构和安全运营,结合软土地区盾构穿越双圆隧道案例,从穿越过程中的施工参数控制、信息化监测、土体加固以及注浆等角度对盾构施工过程中的关键技术进行了总结,以期为类似项目提供参考。

In order to reduce the impact of the underpassing construction on the metro in operation and ensure the structure and safe operation of the metro,combined with the shield construction case of underpassing the double circle tunnel of the metro in operation in soft soil,the key technologies in the process of shield construction are summarized from the aspects of construction parameter control,information monitoring,soil reinforcement and grouting,so as to provide reference for similar projects.