Cable Bolts
Overview
Normet offers a versatile range of cable bolting systems designed to provide robust ground support for both static and dynamic applications in underground mining and tunneling environments. These systems are engineered with high-strength, stress-relieved, low-relaxation 7-wire steel strand cables, available in various configurations to meet diverse operational demands.
Plain Strand: | Plain Strand is suited to typical long-anchor support applications. |
Bulbed Strand: | Offers increased pull-out resistance, with options for up to 5.7 bulbs per meter for enhanced anchorage. |
Spiral Indented Strands: | Features a ribbed profile rolled over the full length, improving anchorage stiffness and pullout resistance by up to 75% compared to plain strands. |
Yielding Cables: | Features swaged collars and debonding sleeves, these cables are designed to tolerate large deformations in the rock mass while maintaining tensile capacity without failure. |
Normet specialises in tailored configurations to accommodate customer-specific requirements, ensuring optimal application effectiveness and operational flexibility.
Innovative and versatile long anchor solutions
Key specification
- Engineered with high-strength, stress-relieved, low-relaxation 7-wire steel strand cables
Key benefits
Cable Bolts
- Ideal for high lift mines or high-stress environments
- Can resist, absorb and suspend energy from rock bursts
- Excellent control of squeezing rock areas
- High static support stiffness yet allows for significant ductility once the yield limit has been exceeded
- The paddles can act as mixers when used with resins
- If a portion of the bolt fails, the remaining section retains functionality
- Can be pre-tensioned when used with a mechanical end-anchor
- Dynamic bolt installation mirrors that of standard bolts
- Can be installed with manual hand-held equipment or mechanized bolting equipment
- Can be coupled for longer lengths using a coupling version of the D-bolt®
Typical applications
- Underground drifts and intersections
- Mining stopes
- Drawpoint reinforcement
- Dilution control
- Permanent openings
- Civil and tunnel reinforcement