| 摘要 |
PROBLEM TO BE SOLVED: To provide a band-like blade member which is turned into a member suitable for a composite pile functioning as a bearing pile, and a construction method for the composite pile, which enables a steel pipe to be correctly installed in the center of the composite pile by a simple method.SOLUTION: A band-like blade member 10f is wound around a hollow steel pipe for a steel pipe pile by one round. Both ends of a body part 11 being wound are extended out by a predetermined length (W) to the outside of the steel pipe. A pair of fastening parts 12 inclined with respect to an axial direction is formed. A third blade 17 elongated to the outside from the body part 11 is formed as needed. |
