复合地层中的矿山法联络通道施工技术

Construction Technology of Connecting Passage by Mine Method in Complex Stratum

该文通过对南京地铁机场线某标段中三座联络通道施工的阐述,介绍了在复合地层中采用矿山法施作盾构区间联络通道的施工技术,着重对成形隧道内支撑加固、小导管超前支护、台阶法开挖,以及防水体系施作进行了重点说明,充分体现了多种工艺在浅埋暗挖工程中的应用,可供同类工程参考。

The article sets forth the construction of three connecting passages in a bid of Nanjing Metro Airport Line, introduces the construction technology of connecting passage by the mine method in the shield construction area, focuses on illustration of the supporting reinforcement in the finished tunnel, the small-pipe advanced support, the stepping excavation and the waterproof system construction, which fully show the application of many technologies in the shallow excavation projects, and can be referred for the similar projects.