Split Set

Split Set is a new type anchor of full-length anchoring and active reinforc-ement of surrounding rock.
It is composed of anchor rod and tray. The anchor rod is made of high-strength steel pipe and has longitudinal slits. When it is installed in a borehole slightly smaller than the pipe diameter, it can immediately apply radial pressure to the borehole through entire length and prevent the surrounding rock from sliding down. Coupled with the supporting force of tray, the surrounding rock is in a three-direction stress state to achieve rock stability.
The bolt is mainly used in hard rock mines, tunnels or emergency rescue, which can quickly provide supporting force to achieve better supporting effects.

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Introduction

Split set is a new type anchor of full-length anchoring and active reinforcement of surrounding rock. It is composed of anchor rod and tray. The anchor rod is made of high-strength steel pipe and has longitudinal slits. When it is installed in a borehole slightly smaller than the pipe diameter, it can immediately apply radial pressure to the borehole through entire length and prevent the surrounding rock from sliding down. Coupled with the supporting force of tray, the surrounding rock is in a three-direction stress state to achieve rock stability.
  • Application Fields: It is mainly used in mine engineering, which can quickly provide supporting force to achieve better supporting effects.

Advantage

  1. High-strength alloy strip steel is used as raw material. One end is forged with a tapered head for the anchor bar to insert the hole, and the other end is welded with an iron hoop to bear the weight of the plate.
  2. Installation is simple and can be completed only by impact.
  3. Anchorage agent is not required.
  4. The friction between the anchor bar and the rock mass is high.
  5. It has high shear and tensile strength.
  6. Equipped with a high-strength tray, the tray is evenly stressed.
  7. The drilling depth is greater than the anchor bar depth.
  8. It can provide timely support in radial and axial directions. It is unfit for permanent support in soft rock.

Split set is mainly composed of anchor rod and tray.

 

 

 

 

 

 

 

Anchor Rod: The circular pipe formed by the thin plate is rolled into a tubular shape and has a full-length longitudinal seam, which is used as a bolt in the support field. There are two wall thicknesses, 2.5mm and 3.0mm.

 

 

 

 

 

 

 

Tray: The shape is square, with a bowl-shaped protrusion in the middle, which is a component that transmits the tensile force of the bolt to the surrounding rock.

Common specifications: φ30, φ35, φ39, φ43, φ46.

Installation precautions

1. Determine the drill hole position according to design requirements, and then make the hole with a drill.

2. Use compressed air to blow away the rock dust in the hole.

3. Fit the anchor rod with plate, and drive the rod into the hole with percussion drill.

Product Parameters

Rod Dia. (mm) Specification Ultimate Tensile Load (KN) Tensile Force of Ring (KN) Cross Section Area (mm2) Material Recommended Drilling Hole Dia. (mm)
33 KFS33×2.5 100 75 214 Q235 28~32
KFS33×2.5 110 80 214 Q355
KFS33×3.0 110 80 253 Q235
KFS33×3.0 120 80 253 Q355
39 KFS39×2.5 110 80 251 Q235 35~38
KFS39×2.5 120 95 251 Q355
KFS39×3.0 120 95 297 Q235
KFS39×3.0 140 105 297 Q355
43 KFS43×2.5 115 90 283 Q235 39~42
KFS43×2.5 130 105 283 Q355
KFS43×3.0 130 105 335 Q235
KFS43×3.0 140 110 335 Q355
46 KFS46×2.5 120 100 299 Q235 42~45
KFS46×2.5 140 110 299 Q355
KFS46×3.0 140 110 354 Q235
KFS46×3.0 165 120 354 Q355
Rod Dia. (mm) Specification Length (mm) Thickness (mm) Bearing Capacity Material Weight (kg)
33 KFS33-150×150×4 150 4 70 Q235 0.63
KFS33-150×150×4 150 4 80 Q355 0.63
39 KFS39-150×150×4 150 4 70 Q235 0.62
KFS39-150×150×4 150 4 80 Q355 0.62
43 KFS43-150×150×6 150 6 80 Q235 0.94
KFS43-150×150×6 150 6 90 Q355 0.94
46 KFS46-150×150×6 150 6 80 Q235 0.94
KFS46-150×150×6 150 6 90 Q355 0.94

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