| 摘要 |
<p>1. Sealing for dumps, contaminated sites or the like, the area to be sealed off being undercut in a mining fashion using a cutter shield, characterized in that the cutter shield consists of a plurality of detachably interconnected sections (27, 28, 29) in the direction of heading or forms an element of a series of cutter shields (9, 10, 11).</p> |
