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DESCRIPTION：Cable bolt for Mining are used for temporary and semi-permanent rock reinforcement in underground Mining. Rock bolting with prestressing steel cable bolts combines low bolt weight with high load-bearing capacity. The system remains flexible even with larger cable bolt lengths.
Cable Bolts for Mining are used for temporary and semi-permanent rock reinforcement in underground Mining. Rock bolting with prestressing steel cable bolts combines low bolt weight with high load-bearing capacity. The system remains flexible even with larger cable bolt lengths.
Special
Mining Cable Bolts featuring a free length or a threaded anchorage instead of
the default barrel and wedge system were developed for challenging ground
control works. These bolts allow a tensioning of the system without tensioners.
Specifications:
Physical
Properties
Minimum
Typical
Yield Load at 0.2% Elongation
212kN
250kN
Tensile Strength
250kN
265kN
Elongation on 600mm Gauge
Length
3.50%
6.50%
| Mass Per Metre | 1.13kg |
| Nominal Strand Diameter | 15.2mm |
| Cross Sectional Steel Area In Cable | 143mm² |
1.Ground control for different fields of application - from coal mining to hard rock mining
2.Bolting in limited space conditions
3.Reinforcement of roadways and gateways
4.Bolting in the hanging wall of longwall T-junctions
Main Advantages
1. Long cable bolts are easily displaceable in limited space
2.High load-bearing capacity at a low weight per meter
3.Flexible bolt lengths
4.Installation
using cement cartridges, resin cartridges, cement grout or injection resin
Key
Features
1. Plain cable bolts are manufactured from stress relieved, low relaxation, high strength 15.2mm diameter 7 wire steel strand and are commonly used as long tendons in strata reinforcement.
2. Plain cable bolts are supplied in various lengths to customers' requirements.
3. Load capacity can be enhanced by simply doubling up from single strand, to double, or treble as the need arises.
4. Can be used with cementitious grouts as well as resin anchors when early support is required.
5. For up hole applications, plain cable bolts are fitted with a spring wire "fish hook" to hold the cable bolt up the hole prior to grouting.
6. Multiple strand cables are usually supplied swaged on the up hole end.
7.
Surface confinement is usually provided by
flat or domed plates and barrel and wedge anchors. For accessories, refer to
appropriate pages for slotted or multiple hole plates, barrel and wedge
anchors, cable bolt spacers, grout and breather tubes.
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