REPAIRING OF UNDERGROUND PIPE

摘要

PURPOSE:To use a repairing pipe material made of a shape memory resin and to smoothly constitute lining having sufficient strength and cut-off function. CONSTITUTION:A repairing pipe material 7 is formed as one continuous pipe material and the outer diameter thereof is made smaller than the inner diameter of an attaching pipe 3. A heating medium (heated water E) is supplied into the repairing pipe material 7 from one end thereof and the repairing pipe material 7 is inserted in the attaching pipe 3 while heated to softening temp. After the completion of insertion, the repairing pipe material 7 is heated to shape recovery temp. or higher by pressure steam to form lining.