PIN CONNECTION STRUCTURE OF FOUNDATION PILE

PROBLEM TO BE SOLVED: To provide a pin connection structure of a foundation pile which pin-connects a pile head of the foundation pile and a superstructure while enabling easy construction at lower cost.SOLUTION: The surface 1b of the pile head 1a of the foundation pile 1 is formed to have an inclined surface 1e inclining downward from the axis O1 center side to the side surface 1c of the foundation pile 1. The superstructure 2 connected to and constructed on the pile head 1a of the foundation pile 1 is provided with a pile head insertion recess 2a which is recessed from the undersurface to the upper side and in which the pile head 1a of the foundation pile 1 is inserted and arranged. An anchor bolt 3 is disposed on an axis O1 of the foundation pile 1 by connecting one end side and the other end side thereof to the foundation pile 1 and the superstructure 2 respectively in a state where the pile head 1a of the foundation pile 1 is inserted and arranged in the pile head insertion recess 2a of the superstructure 2. An elastically deformable filler 4 is injected into a clearance between the pile head insertion recess 2a and the pile head 1a of the foundation pile 1.