METHOD OF PIERCING HOLE IN THE UNDERGROUND USING AN EXCAVATOR AND AN APPARATUS THEREFORE

摘要

An underground punching method and a device thereof using an excavator are provided to dig out a hole for setting up a conduit in the underground in spite of not setting up a screw axis in a boom leading end of an excavator. An underground punching method using an excavator: a step of setting a boring screw(2) excavating the underground, a driving device(3) operating the boring screw, and a multi-stage cylinder(4) moving the driving device at an installation frame(1) detachably adhered to a boom leading end of an excavator; a step of attaching the set installation frame to the boom leading end of the excavator; and a step of boring the underground by transferring a screw and the driving device, and extending the multi-stage cylinder by moving the boring screw the place need be bored while driving the boom leading end of the excavator.