REPAIR WORK FOR UNDERGROUND CONDUIT LINE

摘要

PURPOSE:To perform repair work economically and quickly, by causing the resin to flow out from the cylinder to the front of a lining to perform the repair work in lining with a lining pig, and by causing surplus resin to flow into the cylinder again. CONSTITUTION:A cylinder 3 in which resin C is filled up and a lining pig 2 are arranged in an underground conduit line 1 movably in the direction of a pipe length with tracting lanyards 14 and 15. The cylinder 3 and the lining pig 2 are moved to the spot necessary for repair, where the resin C is caused to flow out in front of the lining pig 2 from the cylinder 3 and lining is performed with the lining pig 2. The surplus resin C left caused to flow into the cylinder 3 again and moved to the next spot necessary for repair.