| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pipe lining technique for smoothly introducing a tubular liner applying to a pipeline having a large bore diameter into the pipeline while securing connection to a mouthpiece even in case of repairing the pipeline having the same. SOLUTION: One end of a tubular liner 1 impregnated with thermosetting resin is passed through a flanged cylindrical mouthpiece 2. One end of the tubular liner 1 is turned up to the outside and connected to the outer periphery in the lower part of the mouthpiece 2. Then, the cylindrical part of a socket 4 is inserted into the opening part of the lower end of the mouthpiece 2 through one end side of the tubular liner 1. One end side of the tubular liner 1 is tucked into the cylindrical part of the socket and a recesslike pocket is formed. Water is poured into the pocket and while the tubular liner 1 is reversed by water pressure, it is introduced into a pipeline 7. Thereafter, a cover 10 is placed on the opening part of the upper end of the mouthpiece 2 and high pressure gas is supplied into the closed space S formed of the cover 10, the mouthpiece 2 and the tubular liner 1. The tubular liner 1 is pushed against the inner peripheral face of the pipe line 7 and the tubular liner 1 is cured while holding this state and a rigid film made of the tubular liner 1 is formed on the inner peripheral face of the pipeline 7.</p> |
