| 摘要 |
PROBLEM TO BE SOLVED: To provide a foundation pile for easily providing precipitation resistance and drawability resistance after implantation.SOLUTION: In a foundation pile for providing a tapering-off part 30 on the tip 23 of a pipe-shaped pile body part 20, in the tip and the rear of sandwiching its tip 23, a tip side member 60 and a rear end side member 40 are provided at an interval between the tip and the rear. Deformation easy means is provided on walls 25 and 35 between its tip and the rear so that the walls 25 and 35 for forming the tapering-off part 30 and a pile body part 40 between its tip and the rear, project to the outside or to be deformed in an overhanging shape in a divided state in the circumferential direction of the foundation pile itself, when reducing the interval by being compressed between its tip and the rear. The tip side member 60 and the rear end side member 40 are connected by a screw structure capable of reducing the interval between the tip and the rear by screw fastening by a tool inserted into the pile body part 20 from an opening on its rear end side. For preventing the interval from becoming smaller than a predetermined dimension after reducing the interval by the screw fastening, an interval holding member composed of a cylindrical pipe 70 of the predetermined length is provided between the tip and the rear.SELECTED DRAWING: Figure 5 |
