APPARATUS FOR GROUND BORING

摘要

A direct boring apparatus for the ground is provided, in which effectiveness of boring can be heightened and separation working of bit can be conveniently done after boring. A direct boring apparatus for the ground comprises: a central bit section(110) smashing the ground by rotation; a rod section which is extended to the rear from the central bit section; a crushing member(100) equipped with an outer circumferential bit section(130) which is mounted by surrounding the circumference of the central bit section; a rotating pipe(200) which covers and protects the circumference of the rod section and is installed so that the upper end comes into contact with the circumference bit portion; a rod section joint which is formed in the front so that the backend of the rod section can be united; a rotating pipe joint which is formed in the outer side of the rod section joint; and a combining member equipped with a rotary force transfer section joint.