Joint for underpinning method and underpinning method using said joint

摘要

To provide a joint for an underpinning method capable of strongly and easily connecting a steel pipe pile.SOLUTION: The joint for underpinning method 20 according to the present invention comprises a flange portion 22 located at the center portion and projecting outwardly, cylindrical projections 14 projecting cylindrically on both sides of the flange portion 22, , And the fitting cylinder portion 24 is formed in a small diameter portion 24a whose tip side is narrowed to a small diameter and the base side is larger than the inner diameter of the steel pipe pile 14 to be connected Diameter portion 24 b having a slightly larger diameter, and the through-hole 26 or the recessed portion is formed in the large-diameter portion 24 b.(FIG.