| 摘要 |
<p>A self-drilling, chemical bonding anchor (1) for mining and tunnel construction comprises an anchor tube (2) which has a first end (5) with a drilling head (6) and a second, free end (7). In the region of its second, free end (7) the anchor tube (2) is provided with an external screw thread (8). At its second, free end (7) the rock anchor comprises an adapter (11) which can be removably attached to the anchor tube (2) and which is provided with a rapid attachment device (15) which can be coupled to the rotary tool receiver of the drilling implement. The adapter (11) further comprises a screw stop (14) and an internal screw thread (17) which can be brought into engagement with the external screw thread (8) at the second, free end (7) of the anchor tube (2).</p> |
