| 摘要 |
PROBLEM TO BE SOLVED: To prevent any rupture of a pile or the occurrence of troubles in the equipment by suppressing the occurrence of an excessive torsion to pile or rotating drive shaft during the execution of rotation and pressuring. SOLUTION: This equipment pushes a pile to the ground by giving a turning force to the tip of the pile by a rotation drive shaft 2 inserted to the inside of a hollow ready-made pile 1, and when a displacement in angle occurs in the turning direction between the pile head and the turning drive shaft 2, linking means 8, 9 and 10 which link both of them to the turning direction are provided for collecting a displacement in angle in the turning direction between the pile head and the turning drive shaft 2.
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