| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint structure of a pile capable of securing sufficient pull-out strength, push-in strength and rotational strength.SOLUTION: A joint structure 1 of the pile for connecting the mutual piles 2 and 3 comprises an outside pipe part 12 provided in an end part of the connecting one pile 3 and forming an inner peripheral groove 15 around the axis of a pipe, an inside column part 11 provided in an end part of the connecting other pile 2, inserted into the outside pipe part 12 and forming an outer peripheral groove 14 around the axis of a column in a position opposed to the inner peripheral groove 15 in an insertion state, an annular key member 13 straddlingly arranged between the inner peripheral groove 15 and the outer peripheral groove 14 and diametrically contractible in the radial direction and an operation part 17 provided by penetrating through the inside-outside in a position different from the position for forming the inner peripheral groove 15 of the outside pipe part 12 and diametrically contracting the key member 13 in the radial direction from the outside of the outside pipe part 12. |
