CONNECTING SEAL MATERIAL FOR PIPE LINE AND MANHOLE, AND CONNECTING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a connecting seal material for a pipe line and a manhole, and the sealing method therefor capable of easily expanding a circular tube to obtain a sealing action without the need for special reinforcement. SOLUTION: The connecting seal material is constituted of a hollow circular tube 6 and an expandable resin 9 injected in the circular tube 6. The circular tube 6 is expanded by the expanding pressure of the expandable resin 9 to seal the gap between the pipe line 4 and the manhole 1.