地铁工程先隧后站特殊节点施工技术

TUNNEL AHEAD AND STATION FOLLOWING SPECIAL NODE CONSTRUCTION TECHNIQUE FOR SUBWAY PROJECT

在地铁工程先隧后站法施工中,明控车站与隧道交接处的围护结构施工和接口处成型隧道保护最为关键.某地铁车站先隧后站施工中,针对填充墙做法、咬合桩工艺、车站端头隧道保护等采取技术措施,使施工过程省时、高效,安全且综合造价较低.

The construction of enclosure structure at connection between open control station and tunnel and the protection of formed tunnel at the connection are key points in tunnel ahead and station following construction of a subway project.Technical measures were adopted for filling wall construction,secant pile processing and station end tunnel protection in the tunnel ahead and station following construction of a subway station project,realizing fast construction,high efficiency and safety,as well as low general construction cost.