COLLECTION DEVICE FOR SEGMENT HANGING METAL FITTING AND TUNNEL EXCAVATOR HAVING COLLECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a collection device for a segment hanging metal fitting and a tunnel excavator enabling automation of serial work from detachment of the hanging metal fitting after assembly of a segment to collection of the hanging metal fitting for reduction in a load of a worker and a construction time for lowering a construction cost. SOLUTION: An elector device 18 assembling the segments S in a ring form on the inside wall face of an existing tunnel is provided with a rotating device such as a rotary motor 54 capable of turning the hanging metal fitting W screwed into the segment S. A hanging metal fitting collection box 90 capable of automatically collecting the hanging metal fitting W removed from the segment S by rotation by the rotating device is arranged in a segment feeding device 70. COPYRIGHT: (C)2003,JPO