| 摘要 |
PURPOSE: An auger drilling machine is provided to improve cost-efficiency by minimizing the size of a hammer formed for placing a beam after a drilling work. CONSTITUTION: An auger drilling machine comprises a beam(B). The beam is placed on the ground excavated by an auger drill and comprises a guide unit and a recess unit. The guide unit is protruded to one outer side of the beam to be connected to the other beam. The recess unit is formed in the other inner side of the beam to correspond to the connection of the guide unit.
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