STEEL PIPE PILE FOR UNDER-PINNING

PROBLEM TO BE SOLVED: To provide a steel pipe pile for under-pinning, which secures the connection strength and quality of a connected portion between steel pipes, and which improves field workability. SOLUTION: This steel pipe pile comprises the steel pipes 110 with a length of 2 m or less, in which three through-holes 111 are provided in positions at predetermined distances from both end surfaces 112, respectively, and a steel joint 120 which is equipped with a tubular body 121 for connecting the steel pipes 110 together by being fitted into inside-diameter portions of the steel pipes 110, respectively. The steel joint 120 is provided with axial splits 123 which have female screw holes 122 facing the three through-holes 111, and which are cut in from both ends of the tubular body 121 between the female screw holes 122. COPYRIGHT: (C)2009,JPO&INPIT