| 摘要 |
<p>The bottom length edges of the cladding are welded to the length edges of the floor covering inside the gallery (10), or to sections of the gallery walls (12), e.g. adjacent to the gallery floor. The cladding comprises an e.g. fabric material (15, 17) which is secured to the walls and roof (11) of an excavated or blasted gallery, using e.g. rock bolts, and also kept a given distance from the sides of the gallery.</p> |
