| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a joint attachment in which, even when a front part of a work machine is floated by a reaction force during insertion of a steel pipe pile, the steel pipe pile can be held in a perpendicular attitude and torque of an auger motor can be transmitted to the steel pipe pile held in the perpendicular attitude.SOLUTION: A steel pipe pile burying mechanism comprises: a chuck mechanism for keeping a chuck with which a steel pipe pile is freely clamped/unclamped, freely rotatable via transmission mechanism; and a driving source for transmitting torque to the transmission mechanism, and is installed in a front part of a burying machine. In the steel pipe pile burying mechanism, a joint body is clamped by the chuck, and the joint body is formed from a front-end joint part clamped by the chuck, a pipe-side joint part connected to an upper end portion of the steel pipe pile being buried, and an intermediate joint member for connecting both the joint parts in a universal joint shape. The pipe joint part is connected to the steel pipe pile being buried, the front-end joint part is clamped by the chuck, and the steel pipe pile being buried is further buried underground.</p> |
