| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sealing structure of a through hole which inhibits peeling of a seal surface utilizing an external pressure and thereby improves the seal performance, and to provide a sealing method of the through hole.SOLUTION: A sealing structure of a through hole is used for sealing a space part 15 between a pipeline 13 inserted into a sleeve 14 and the sleeve 14 that is fixed to the through hole 12 formed on a vertical wall 11 of a building. In the sealing structure of the through hole, a seal material 16 is disposed in the space part 15 between the sleeve 14 and the pipeline 13 and a recessed part 21 is provided on an end surface of the seal material 16 which is positioned at the outer side of the building.</p> |
