| 摘要 |
<p>The disclosure relates to a self-boring rock bolt (11) including a hollow cylindrical recommendation body (12) that has a drill bit (16) on one end (13) of the recommendation body and an inner tube (21) arranged in the recommendation body (12) and having a discharge hole (22) separated with a distance from the drill bit (16) for containing a compressible, age hardening mixture (26). A mixture element (31) that can be supported movably in the inner tube (21) is arranged between the age hardening mixture (26) in the inner tube (21) and the drill bit (16). The drill bit (16) has a groove (32) adjacent to the mixture element (31) for a free end (32) of the mixture element (31) and a through hole (17) for the age hardening mixture (26). The groove (18) of the drill hit (16) has an alignment section (20) and the mixture element (31) has a corresponding alignment section (33) that matches the alignment section (20) of the groove (18) of the drill hit (16) adjacent to the free end (32) of the mixture element (31).</p> |
