The update mannered null existing embedding tube of the guide apparatus and guide manner and the existing embedding tube of the cutter head

摘要

PROBLEM TO BE SOLVED: To provide a guide device capable of surely advancing a cutter head for crushing an existing buried pipe along a planned line, while preventing whirling.;SOLUTION: This guide device 100 can position and fix the cutter head 7 connected to the rear end of a rocking member 40 by guiding to a desired position with an engaging body 30 engaged with the existing buried pipe 1 as a reference, by rocking the rocking member 40 by using a vertical directional rocking means 60 and a horizontal directional rocking means 70.;COPYRIGHT: (C)2006,JPO&NCIPI