| 摘要 |
PURPOSE:To reinforce the support force of a present ground without generating noise and vibration, by a method wherein a loading part is installed to the upper end part of a reciprocatively rotatable rodform body, a protruding vane, protruded sidewardly, is located to the lower end part, and a blade part is obliquely formed to the lower edge of the protruding vane. CONSTITUTION:A compacting device 2 is attached to a driving device 1, and the proper number of weights 6 are placed on a load support part 4 of a rodform body 3. With a driving device 1 started, a protruding vane 8 is reprocatively rotated integrally with the rodform body 3, and refilling soil G is excluded sidewardly by means of a blade part 9 to form a pile hole 11. The compacting device 2 is gradually pulled off through repetition of motion to charge and compact aggregates S to form an aggregate hole P, formed with the aggregate S, in the pile hole 11. This prevents the generation of violent noise and vibration, resulting in the possibility to sufficiently reinforce the support force of a present ground without giving nuisance to inhabitants around the installation site and damaging a structure. |
