PIPELINE STRUCTURE WITH A LINING MATERIAL, AN END STRUCTURE OF SAID PIPELINE AND A METHOD FOR APPLYING A LINING MATERIAL TO A PIPELINE

摘要

A pipeline structure with a lining material characterized in that a hermetic outer tube (6) is disposed in the inner surface of a pipeline (1), and an inner lining material (4) is disposed in the inner surface of the outer tube (6) and made of a rigid FRP wherein a thermosetting resin (17) is reinforced by a fiber reinforcement material (12). A method for applying a lining material to a pipeline, characterized by inserting a hermetic outer tube (6) into a pipeline (1), inserting into the outer tube (6) an inner lining material (4) wherein a fiber reinforcement material (12) is impregnated with a thermosetting resin liquid (17), applying a fluid pressure within the inner lining material (4) so as to expand the inner lining material (4), and then, curing the thermosetting resin liquid (17). An end structure of a pipeline lining material characterized in that a flexible sleeve (22) has one end fit within the end of an inner lining material (4) disposed within a pipeline (1), that a metal ring (23a) is fit within the sleeve (22) and expanded to press the sleeve (22) and the inner lining material (4) against the inner surface of the pipeline (1), that the sleeve is slackened at its center, and that a metal ring (23b) is fit to the other end of the sleeve (22) and expanded to press the sleeve (22) against the inner surface of the pipeline (1).