| 摘要 |
<p>A reinforcing element, such as an anchor bolt, is anchored in a rock substrate, such as an underground mine roof, by drilling a borehole in the rock strata and inserting into the borehole a frangible cartridge containing a hot-melt adhesive. The reinforcing element is then inserted, whilst rotating, into the borehole and brought into contact with the cartridge, thereby causing the adhesive to melt as a result of the rotation of the reinforcing element and fill the annular space between the reinforcing element and the wall of the borehole. When rotation is terminated and the molten adhesive is allowed to solidify, the latter anchors the reinforcing element in the borehole.</p> |
