| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint structure which makes two steel pipe piles serially and mechanically coupled together by fitting and pinning inner and outer joint pipes fixed to corresponding end surfaces of the steel pipe piles by welding.SOLUTION: The outer joint pipe 3, which has a plurality of coupling holes 3a, ... radially drilled in a peripheral wall, is fixed to the end surface of the one steel pipe pile 1. An end fitting 4 is fixed to the corresponding end surface of the other steel pipe pile 2 by welding; and the inner joint pipe 5, which can be fitted into the inside of the outer joint pipe 3 and which has a plurality of coupling holes 4a, ... radially drilled in a peripheral wall in disposition corresponding to the coupling holes 3a of the outer joint pipe 3, is fixed to the other side surface of the end fitting 4 by welding. The inner joint pipe 5 is inserted into the outer joint pipe 3; a coupling pin 6 is inserted by making the coupling holes 3a and 5a of the outer and inner joint pipes 3 and 5 agree with one another; and coming-off prevention treatment is applied to couple the two steel pipe piles 1 and 2 together. |
