Friction Bolt (Split Set Bolt)
Friction Bolts are used together with spherical plate and net for reliable ground support in mines, tunnels, slopes, etc.
Features:
----- Made from high strength steel tube;
----- Make the strata and the bolt as a whole body, all strain of bolt will support to the strata tightly;
----- Fast and easy installation with hand held or mechanized equipment;
----- Provide support in radial and axial direction.
Recommended hole diameter calculation:
----- In the Rock Stratum:
Diameter of Hole: (0.9-0.95) × Diameter of Bolt
Depth of Hole: Length of Bolt +100mm
Deflection Rate of Drilling: ＜1%
----- In the Coal Stratum:
Diameter of Hole: (0.9-1.00) × Diameter of Bolt
Depth of Hole: Length of Bolt +200mm
Deflection Rate of Drilling: ＜1.5%
Parameters:
|
Type
|
Specification
|
Bearing Capacity
|
High-Strength Plate(Spherical)
|
Length (mm)
|
|
Size(mm)
|
Bearing Capacity
|
|
FB-33
|
33×2.5mm
|
100KN
|
120×120×5.0
|
≥100KN
|
914-3000
|
|
33×3.0mm
|
120KN
|
120×120×6.0
|
≥120KN
|
914-3000
|
|
FB-39
|
39×2.5mm
|
130KN
|
150×150×5.0
|
≥150KN
|
1200-3000
|
|
39×3.0mm
|
150KN
|
150×150×6.0
|
≥180KN
|
1200-3000
|
|
FB-42
|
42×2.5mm
|
140KN
|
150×150×5.0
|
≥150KN
|
1400-3000
|
|
42×3.0mm
|
160KN
|
150×150×6.0
|
≥180KN
|
1400-3000
|
|
FB-47
|
47×2.5mm
|
150KN
|
150×150×6.0
|
≥180KN
|
1600-3000
|
|
47×3.0mm
|
170KN
|
150×150×6.0
|
≥180KN
|
1600-3000
|
|
