Cable Bolt Twin Strand
- -The steel wire of the steel strand is made of high-strength high-quality steel wire.
- -High tensile strength, firm connection with concrete, stable construction, and good combination with reinforced concrete.
- -It can also save materials, reduce deformation and structural weight, and improve stiffness, wear resistance, and waterproofness.
Cable Bolt Twin Strand
Cable Bolt is important support components widely used in mine engineering, mainly composed of steel strands, riggings, plates and other parts. By inserting cables into the interior of the surrounding rock and applying prestress, the unstable rock strata are linked with the deep stable rock strata to form an integrated whole, jointly bearing the pressure of the surrounding rock.When using mine cables, operations must be carried out strictly in accordance with relevant norms and standards to ensure their support effect and safety. It is one of the important supporting materials for ensuring the safe production and efficient mining in mines.
Cable Bolt Twin Strand Mechanical Properties
| Item No. | TRCB152 | TRCB178 | TRCB189 | TRCB216 | TRCB218 |
| Diameter(mm) | 15.2 | 17.8 | 18.9 | 21.6 | 21.8 |
| Strands | 1*7 | 1*7 | 1*7 | 1*7 | 1*19 |
| Mass per meter(kg) | 1.1 | 1.5 | 1.73 | 2.24 | 2.48 |
| Cross sectional area(mm2) | 140 | 191 | 220 | 285 | 313 |
| Steel Grade(Mpa) | 1860 | 1860 | 1860 | 1860 | 1860 |
| Tensile strength(kN) | 260(26.5T) | 335(36.2T) | 409(41.7T) | 530(54.1T) | 583(59.5T) |
| Min 0.2% extension under load(kN) | 229 | 311 | 360 | 466 | 513 |
| Min.Elongation(%) | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
Cable Bolt Twin Strand Features
1.The cable bolt is made of steel strands, and its flexible shear bearing capacity is the same as that of cables.
2.High strength: Capable of withstanding significant loads, it provides reliable support for tunnels, mining areas, etc.
3.Good stability: Effectively control the deformation of surrounding rock and enhance the stability of surrounding rock.
4.Adapt to complex geological conditions: It can function in various different geological environments, including soft rock strata, fractured rock strata, etc.
5.Strong durability: It has excellent corrosion resistance and can maintain stable performance for a long time in underground environments.
Cable Bolt Twin Strand Installation Guide
-The nature of the ground must be evaluated.
-Drill a hole in the area according to bolt diameter, bolt length. The length of hole is 200mm to 500mm shorter than the bolt.
-Attach a breather tube to the full length of the bolt. Breather tube protrudes about two meters from the hole.
-Attach about one meter of grout tube to the end of the cable bolt with sufficient tail provided to connect to the pump.
-Insert the cable bolt and seal the hole mouth to eliminate lose of grout when pumping.
-Connect
the grout tube to pump and place the breather tube into a container of
water; when start to pump, we will see the air bubble exhausted from the
breather tube in the water container, when the hole is full of grout,
air bubbles will disappear.
-Tension the cable bolt after the grout has cured.
Cable Bolt Twin Strand Accessories
Fish Hooks Expansion shell Grouting tube Breathing tube Bearing plate
Cable Bolt Twin Strand Length and Package
Length:500mm to 6200mm in pieces or in coils
Package:20 pcs each bundle
As customer’s requirement
