| 摘要 |
PROBLEM TO BE SOLVED: To provide a foundation pile to be driven in a ground while being rotated for supporting the foundation of a building, offering simple construction and requiring lower manufacturing cost for permitting the use for a general housing. SOLUTION: A bottom enlarged plate 2 is welded to the end of a pile body 1 formed of a preset-length steel pipe and cutouts 9a, 9b are formed in the outer periphery of the bottom enlarged plate 2. Drilling cutters 4a, 4b in inclination are provided near the cutouts and a drilling cutter 3 is further mounted at the end of the pile body 1.
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