| 摘要 |
Holding body for attaching a sealing foil of synthetic material to a foundation, in particular a tunnel wall, consisting of two discs connected to each other and parallel to each other, of which one with its base surface contacts on the foundation, and the other is connected to the synthetic foil, the discs (2,3) being connected integrally to each other by means of at least one bar (4), and the bar (4) having a tearing point of predetermined tearing strength. |
