| 摘要 |
An anchored cable sling system stabilizes and supports the rock formation above a mine tunnel roof. The system comprises a unitary multi-strand cable having a series of anchor collars and a device for shredding resin capsules and mixing chemical resin, on each end of the cable. Each shredding and mixing device comprises a square rod spirally wrapped around and crimped to the cable end. The spirally wrapped square rod cuts the resin capsule and mixes the chemical resin without the necessity for rotating the cable in the bore hole. The anchor collars include radially extending wings that: (1) also cut and shred the resin grout material capsules, (2) continue mixing the resin grout material as the cable end is being inserted into the mine tunnel roof bore hole, and (3) center the anchor collars and cable in the bore hole. The anchor collars are oriented on the cable so that the wings thoroughly mix the resin grout material as it makes its way down the annulus between the cable and bore hole wall as the cable is being forced into the bore hole. The anchored cable sling system is installed in a mine tunnel roof without the necessity of spinning or rotating the cable ends in order to mix the resin grout material. The system may also include a structural beam support and a device for post-installation tensioning the sling.
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