| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel pipe pile with blades smoothly penetrable into the ground. SOLUTION: This steel pipe pile 10 with blades is composed of a steel pipe 11, blades 121 and 122, and a plate-like body 13. The blades 121 and 122 are fixed by welding to end surfaces 111 and 112 inclining in the inverse direction of the tip of the steel pipe 11. A last-in part of the blade 122 opposed to a first-in part 121h of the blade 121 is cut, and a last-in part of the blade 121 opposed to a first-in part 122h of the blade 122 is similarly cut. Thus, when pressing the steel pipe pile in the ground while rotating the steel pipe pile 10 with the blades, earth on the first-in part 121h of the blade 121 is compressed by being accumulated on the reverse surface of the last-in part of the blade 122, and not hardened. Thus, the pre-penetration end surface 121k of the firs-in part 121h can be smoothly penetrated into the ground. COPYRIGHT: (C)2005,JPO&NCIPI
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