| 摘要 |
<p>PURPOSE:To provide a sealing method capable of sealing a clearance between a sewer pipe, in which a spiral tube is lined, and the spiral tube at the end of the sewer pipe. CONSTITUTION:A spiral tube 10' inserted into a sewer pipe 81 is increased in diameter to make it contact firmly with the internal surface of the sewer pipe 81. Then a sheath pipe 60 is fitted closely onto a tapered section 50 of the spiral tube 10' extending from the sewer pipe 81. When a foam sealing agent is fed forcibly into the sheath pipe 60, it flows into a clearance 52 between the internal surface of the sewer pipe 81 and the spiral tube 10' to fill it further to the inner part of the clearance 52.</p> |
