METHOD AND DEVICE FOR REPAIRING CORRODED INNER SURFACE OF STEEL PIPE STEEL TOWER

摘要

PROBLEM TO BE SOLVED: To provide a method for repairing a corroded location, which appears on an inner surface of a steel pipe steel tower, by a simple method; and to provide a device for use in the method.;SOLUTION: In this method for repairing the corroded location B on the inner surface of the steel pipe steel tower, a hollow expansion member 2 is wound around the outer periphery of an approximately short cylinder-shaped repairing machine A; a repairing material 4 impregnated with an epoxy resin is wound around the outer periphery of the hollow expansion member 2; the repairing machine A is suspended inside the steel pipe from an upper section of the steel tower, and fixed in a position of the corroded location C; air is fed into the hollow expansion member 2 from the outside; the hollow expansion member 2 is swelled in the radial direction of the central axis of the repairing machine A, so that the repairing material 4 can be fixed by being pressed against an inner surface of a steel pipe member B by air pressure; and the corroded location B is covered with the repairing material 4.;COPYRIGHT: (C)2012,JPO&INPIT