JOINT STRUCTURE OF PILES AND ERECTION METHOD OF PILES

摘要

PROBLEM TO BE SOLVED: To provide a joint structure of piles in which increase of construction cost of driving piles can be prevented and prolongation of a construction period of driving piles can be prevented by joining end portions of piles in a shorter time than junction by welding and efficiently implementing driving of piles, and an erection method of piles.SOLUTION: A joint structure 1 of piles is configured to concatenate an upper pile 3 or an intermediate pile 4 to a lower pile 2 provided with spiral blades 11 at any one or both of a lower end portion 2a and an intermediate portion 2c. The joint structure 1 comprises a lower flange 12 formed in an upper end portion 2b of the lower pile 2 so as to extend from an outer circumferential surface to the outside, and an upper flange 13 formed in a lower end portion 3a of the upper pile 3 so as to extend from an outer circumferential surface to the outside. The lower flange 12 and the upper flange 13 are formed spiral and mutually joined in the state where a top face 12a of the lower flange 12 and a bottom face 13b of the upper flange 13 are brought into face contact with each other.