| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a steel pipe pile that can be easily manufactured.SOLUTION: In an excavation blade 3, an excavation part 11 includes an upward bent part 12 and a downward bent part 13. The upward bent part 12 is formed so as to be bent upward from the outer peripheral surface of a base 10. The vertical length of the upward bent part 12 is long at one side end in a circumferential direction and becomes shorter toward the other side end. The downward bent part 13 is formed so as to be bent downward from the outer peripheral surface of the base 10. The vertical length of the downward bent part 13 is long at one side end in a circumferential direction and becomes shorter toward the other side end.</p> |
