| 摘要 |
PROBLEM TO BE SOLVED: To provide a high torque rotary press in auger and a foundation pile rotary press in machine capable of carrying out final penetration. SOLUTION: The high torque rotary press in auger 1 is provided with a chuck means 18 which is attachable to a leader of a pile and holds a pierced steel pipe pile 8, a rotary body 12 which is rotatable together with the chuck means 18, a driving motor 11 imparting rotary motion to the rotary body 12, a speed reducing mechanism 15, 16, 17 reducing the rotation of the driving motor 11 and transmitting it to the rotary body, and a load-carrying bracket 25 supporting a downward load from an external thrust jack.
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