Synchronized Lining with TBM Driving in West Qinling Tunnel
(1 Lanzhou-Chongqing Railway Co., Ltd., Lanzhou 730050; 2 Construction Headquarters of Lanzhou-Chongqing Railway, China Railway No.18 Construction Bureau Group Co., Ltd., Wudu 746041)
Abstract：
The newly built West Qinling tunnel of Lanzhou-Chongqing railway is the key project of the whole line. To assure realizing the overall construction goals, it was demanded to adopt synchronized lining with TBM driving and continuous conveyor belt mucking. The paper introduces the special design of the full-face hydraulic jumbo for tunnel lining that provides space for track transport, continuous conveyor belt and vent pipe as well as other pipelines to traverse. With the help of synchronic lining technology and scientific transportation organization, the project realized synchronic operation of TBM driving and lining with working safety and construction progress satisfied.
2011, Vol. 48 