METHOD FOR ROTATIONALLY JOINTING STEEL PIPE PILE WITH FLUID SUPPLY PIPE, AND STEEL PIPE PILE WITH FLUID SUPPLY PIPE

Title:

METHOD FOR ROTATIONALLY JOINTING STEEL PIPE PILE WITH FLUID SUPPLY PIPE, AND STEEL PIPE PILE WITH FLUID SUPPLY PIPE

Document Type and Number:

Japanese Patent JP2023159969

Kind Code:

A

Abstract:

To provide a method for rotationally jointing a steel pipe pile with a fluid supply pipe that is rotationally jointed and has a fluid supply pipe that supplies fluid at the inner surface of a pile and/or its tip, and to provide a steel pipe pile with a fluid supply pipe.SOLUTION: A method for rotationally jointing a steel pipe pile 5 with a fluid supply pipe comprises: an upper pile hanging and supporting step of hanging and supporting an upper pile 5a in which an upper pile side fluid supply pipe 3a is held at the inner surface side above a lower pile 5b to which a lower pile side fluid supply pipe 3b is attached; a fluid supply pipe connecting step of connecting the upper pile side fluid supply pipe 3a to the lower pile side fluid supply pipe 3b; and a pile rotationally jointing step of rotationally jointing the upper pile to the lower pile 5b in a state where the movement of the upper part of the upper pile side fluid supply pipe 3a in a circumferential direction relative to the upper pile 5a is restricted. In the upper pile hanging and supporting step, the upper part of the upper pile side fluid supply pipe 3a is restricted so as not to move in the circumferential direction relative to the inner surface of the upper pile 5a. In the pile rotationally jointing step, rotational jointing is performed such that deflection along the upper pile inner surface generated in the upper pile side fluid supply pipe 3a at the start of rotational jointing is eliminated.SELECTED DRAWING: Figure 1