PILE HEAD STRUCTURE, PIER STRUCTURE USING THE SAME, AND REPAIR METHOD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a steel pipe pile head structure which allows safe repair construction for function recovery in a short time when buckling occurs in a steel pipe pile of a pier due to a collision of a ship coming alongside the pier or a large-scale earthquake or the like, and a pier structure using the steel pipe pile head structure.SOLUTION: The pile head structure includes: an inner side steel pipe 12 which is inserted to the inner side of a pile head part of a steel pipe pile 5 supporting a floor slab 4 and has the lower end below the lower surface of the floor slab 4; concrete 13 filled inside the inner side steel pipe 12; and concrete filled in a part buried in the floor slab 4 at a gap between the steel pipe pile 5 and the inner side steel pipe 12.