| 摘要 |
PROBLEM TO BE SOLVED: To enable a pile to be formed by making pipes, which form the pile, joined together without undergoing drill-through working at a site of execution of work for the pile. SOLUTION: In the pile 5 formed by joining a plurality of cast pipes, a socket 4, which is formed at a lower end of an upper pipe 3, is made to cover a spigot 2 formed at an upper end of a mutually joined lower pipe 1. A back end face 7 of the inside of the socket 4 is brought into contact with an end face 6 of the spigot 2 so as to be made capable of bearing a compressive force acting in an axial direction of the pile 5. A groove 15 is formed in an inner peripheral face 4a of the socket 4 along an axial direction of the socket 4, and a circular hole 16 is formed in a position, corresponding to the groove 15, in the spigot 2. Round steel 17 is made to pass through the circular hole 16, a protrusion 17a of the round steel 17 is inserted into the groove 15 of the socket 4, and a wedge-shaped filling member 19 is fitted into a gap 20 between a side face 18 of the groove 15 and the round steel 17 in such a manner as to be infilled between a bottom face of the groove 15 and an outer peripheral face 2a of the spigot 2.
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