Underground—North America—Canada—Mining
Innovations in Mining:
DSI Underground develops efficient Cable Bolt Systems
Cable Bolts are routinely used for underground roof support in coal, metal and non-metal mines. Since cable bolts
in Mining are long, single-section multi-strand tendon supports, they are very suitable for use in deep boreholes
and where mining heights restrict the use of long solid-bar style rock bolts.
DSI Underground is aware of the important
role of these ground support products in
Underground and is therefore continuously
developing its product offer in this area.
Recently, DSI Underground tested and
approved new cable bolt systems: Square
Head Cable Barrels, Threaded Tensionable
Cable Bolts and new Indented Strand Cable
Bolts.
DSI Square Head Cable Barrels
The new DSI Square Head Cable Barrels
permit bolt installation and resin-mixing with
conventional installation tools. Numerous
Square Head Barrel Cable Bolts have been
tested in the lab and in-the-mine to verify
performance. The 1-1/8" Square Head meets
ASTM Rock Bolt Specification requirements.
DSI Threaded Tensionable Cable Bolts
Tensionable ground support systems
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provide additional roof rock reinforcement
in thinly laminated mine roof conditions.
Furthermore, Threaded Tensionable Cable
Bolts permit the utilization of longer, single-
section ground support systems in reduced
mine opening heights. The new DSI Threaded
Tensionable Cable Bolts have recently been
successfully tested and approved at a DSI
Underground customer mine in North America.
In addition to product application, the test
installation also demonstrated the immediate
roof compression and the excellent product
performance of the new cable bolt.