| I.P Abstract & Summary |
A foundation pile 1 is disclosed. The foundation pile 1 includes a central axis member 10 that extends vertically in the up-down direction; a base plate 11 formed on the upper end of the central axis member 10 to fix the upper structure 2 at the upper end; and a circumferential member 20 provided on the upper side circumference of the central axis member 10 to reinforce the upper side circumference of the central axis member 10, wherein the upper surface of the circumferential member 20 is formed so as to come into contact with the lower surface of the base plate 11 without any gap. |
