| 摘要 |
PROBLEM TO BE SOLVED: To provide a foundation pile of reliability, capable of stably supporting a building or structure over a long period by giving sufficient clamping force and holding force between an embedded pile body and the ground, having less vibration and noise when implementing is superior in workability and economics, capable of significantly increasing holding force of the ground at a low cost with low labor force. SOLUTION: The foundation pile 10 is constituted by having the pile body 11 embedded in the ground 17 formed into a substantially cone, shape a screw- like projection 12 formed over the circumferential surface of the pile body 11 and a fitting section 14 formed into a shape of projection or recess for rotating the pile body 11 formed in the head section of the pile body 11 in the axial direction.
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