Abstract: The TBM used in Qingdao Metro Line No. 8 laterally moved and advanced without load for several times. As a result, a new type of hydraulic shifting equipment for full-face TBM is developed based on the disadvantages of lateral moving and advancing without load of TBM by "track first and then thrust" method, i. e. low efficiency, great amount of preparation, high precision requirement and great risk of process change. The gear system, eletrohydraulic control driving force and turning and guiding system are added to the equipment to improve the bearing capacity, driving force, gear strength, ground bearing capacity and planeness. The synchronous lateral moving and advancing without load of the TBM can be realized, the working process change time can be reduced, the working efficiency can be improved and the construction risk can be reduced by using the equipment. The results can provide reference for similar shield/ TBM tunneling projects in the future.

Key words: shield, TBM, lateral moving, advancing without load, station crossing, hydraulic shifting, gear, turning; guiding