城市小净距重叠隧道施工技术

Construction technology of urban small spacing overlapped tunnel

结合工程实例,对重庆轨道交通六号线一期工程大龙山车站小净距重叠隧道的施工组织及施工方法进行了总结,在只利用一个施工通道的前提下,通过合理化组织及应用信息化技术,安全、优质、高效地进行施工,大大缩短了车站及隧道施工工期,减小了爆破震动对结构的影响,确保了重叠隧道防水、二衬的整体性及耐久性。

Integrating with project case, it summarizes the construction organization and construction technology of Dalongshan station small spacing overlapped tunnel at the first stage of Chongqing trial transportation line No. 6. In the premise of using a construction passageway, through reasonable organization and information technology application, it carries on the construction safely, efficiently, and effectively, greatly shortens the station and tunnel construction schedule, reduces the impacts of the blasting vibration on the structure, and ensures the overlapped tunnel waterproofing, completeness and durability of the secondary lining.