| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel pipe foundation which is for improving a steel pipe foundation used when a column body such as a utility pole is constructed on the ground, and enables efficient drilling operation by improving especially a tip claw installed at the tip of the steel pipe foundation.SOLUTION: In a steel pipe foundation where a plurality of tip claws are fixed along the outer peripheral surface of the lower end of a steel pipe rotated and pressed into the ground, each of the tip claws includes a mounting part for mounting to the outer peripheral surface of the lower end of the steel pipe, and a blade part formed on the tip side of each tip claw, and the blade part has a sharp edge in a rotation direction of the steel pipe and has a swell part arcuately swelling to the outside of each tip claw. |
