Underground—North America—Canada—Mining
DSI Indented Strand Cable Bolt
Most high-strength cable is smooth and requires
cable “bulbs” or other deformations for proper
anchorage in the drill hole. The new DSI Indented
Strand Cable Bolt has small deformations
along the length of the cable strand that
provide stable anchorage in resin or grout.
The small deformations perform similarly to
deformations along the length of bulbed or
otherwise deformed rebar bolt systems.
The Indented Strand Cable does not require
the extra manufacturing step for “bulbing”
the cable, thus minimizing manufacturing
costs. DSI Underground has conducted
both laboratory and in-mine tests that
proved the performance of the anchorage
and the assembled cable bolt. Since the DSI
Indented Strand Cable Bolt is not bulbed,
bolt installations are easier with faster resin
systems; the non-bulbed indented strand
cable also makes installing the cable bolts
easier with older, higher viscosity resin.
Taking into account manufacturer’s
dates on the packages, customers are
therefore able to utilize older resin inventory
that would have created bolt installation
problems with bulbed cable bolts.
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