Friction Stabilizers
2
Contents
Introduction ..................................................................................................................3
Fields of Application ......................................................................................................4
Main Advantages ...........................................................................................................4
System Components ....................................................................................................4
Specifications ...............................................................................................................5
Technical Features ........................................................................................................5
Installation Procedure ....................................................................................................6
Accessories ..................................................................................................................6
Order Information ..........................................................................................................6
Introduction
Friction Stabilizers are mainly used
for rock reinforcement in underground
Mining. The shaft of the Friction
Stabilizer consists of a metal strip
which is folded to form a slotted tube.
The bolt is installed into a borehole by
applying impact energy. The borehole
features a slightly smaller diameter than
the outer diameter of the bolt tube.
The principle of this anchor system
is based on the bond between the
borehole and the tubular bolt shaft,
caused by applying a force onto the
borehole wall, which generates a
frictional resistance in axial direction.
The main field of application of this rock
bolt is underground metal ore or hard
rock Mining. Recently, a self-drilling
friction bolt system, the POWER-SET
Self-Drilling Friction Bolt, has been
developed in addition to conventional
Friction Stabilizers.
3
Fields of Application
■■ Systematic reinforcement of
underground excavations
■■ Rock bolting in hard rock Mining
■■ Additional reinforcement
■■ Utility bolting
Main Advantages
■■ Easy and fast installation procedure
■■ Both hand-held and fully automated
installation are possible
■■ Immediate load-bearing capacity
after installation
■■ Low sensitivity to rock mass
displacements
System Components
■■ Friction stabilizer tube
■ Slotted steel tube
■ Tapered on the far end
■ Welded-on collar ring
4
■■ Plate
■ Default domed version
■ Different designs and dimensions
available on request
■■ Galvanized or coated system
components available on request
Specifications
Friction Stabilizer Type FS
No.
1
2
3
4
5
6
7
8
9
10
11
Characteristics / Type 1)
Outer diameter
Wall thickness
Inner diameter
Slot opening width
Nominal weight 2)
Ultimate load 2)
Yield strength 3)
Ultimate strength 3)
Elongation 3)
Recommended
drill bit diameter
Delivery lengths 4)
Symbol
Da.nom
t
Di.nom
w
m
Fm.s.nom
Re.s.nom
Rm.s.nom
Agt
Unit
[mm]
[mm]
[mm]
[mm]
[kg/m]
[kN]
[N/mm2]
[N/mm2]
[%]
FS33-105
33
2.5
28
13
1.50
105
410
520
10
FS39-110
39
2.5
34
16
1.75
110
410
520
10
FS46-150
46
3.0
40
22
2.85
150
410
520
10
B
[mm]
30 - 32
36 - 38
43 - 45
L
[mm]
900 - 2,400
900 - 3,000
900 - 3,700
1)Status: 2012-08, note: all values are subject to change; other dimensions, steel grades and compliant bolt plates available on request
2)Nominal value
3)According to primary material supplier information; modulus of elasticity: 210,000 [N/mm²]
4)Off-size lengths are available on request
Technical Features
■■ Deviations in actual borehole
diameters affect the load-bearing
capacity of Friction Stabilizers Type FS
■■ The actual load-bearing capacity is
determined by the existing rock mass
strength
80
FS33-105
70
Holding force [kN]
■■ The reference values indicated apply
to correctly drilled boreholes and
properly installed Friction Stabilizers
Type FS
60
50
Recommended initial
anchorage: 30 - 60 [kN]
40
30
20
10
0
33
■■ Required borehole diameters must
be adapted when installing in soft or
highly jointed rock mass
80
32
31
Borehole diameter [mm]
30
FS39-110
Holding force [kN]
70
60
50
Recommended initial
anchorage: 30 - 60 [kN]
40
30
20
10
0
38
140
37
36
Borehole diameter [mm]
35
FS46-150
Holding force [kN]
120
100
Recommended initial
anchorage: 60 - 100 [kN]
80
60
40
20
0
45
44
43
42
Borehole diameter [mm]
41
5
Installation Procedure
■■ Drilling of a borehole according to
specifications; borehole lengths should
exceed the Friction Stabilizer length
by approx. 150 [mm]
■■ Insertion of the Friction Stabilizer plus
bolt plate onto the driver tool
■■ Installation into the borehole using
percussion from the rock drill via
a driving tool onto the collar of the
Friction Stabilizer until the plate is
firmly pressed against the excavation
surface
■■ Launch of the Friction Stabilizer into
the borehole, either manually
or mechanized
■■ Note: Friction Stabilizers should
be installed as perpendicularly as
possible to the excavation surface
Accessories
■■ Straps or mesh
■■ Driver tools for hand-held and
mechanized bolters
■■ Rock bolt testing equipment
Order Information
Article Description
Friction Stabilizer
Type FS33-105, L = 1,200 [mm]
Friction Stabilizer
Type FS33-105, L = 1,200 [mm], galvanized
Friction Stabilizer
Type FS33-105, L = 1,800 [mm]
Friction Stabilizer
Type FS33-105, L = 1,800 [mm], galvanized
Friction Stabilizer
Type FS39-110, L = 2,100 [mm]
Friction Stabilizer
Type FS39-110, L = 2,100 [mm], galvanized
Friction Stabilizer
Type FS39-120, L = 2,400 [mm]
Friction Stabilizer
Type FS39-110, L = 2,400 [mm], galvanized
Friction Stabilizer
Type FS39-110, L = 3,600 [mm]
Friction Stabilizer
Type FS46-150, L = 2,100 [mm]
Domed Plate for Friction Stabilizer
FS-33, 150x150x5-33 [mm], with notch
Domed Plate for Friction Stabilizer
FS-33, 150x150x5-33 [mm], with notch, galvanized
Domed Plate for Friction Stabilizer
FS-39, 150x150x4-40 [mm]
Domed Plate for Friction Stabilizer
FS-39, 150x150x4-40 [mm], with notch
Domed Plate for Friction Stabilizer
FS-39, 150x150x4-40 [mm], with notch, galvanized
Domed Plate for Friction Stabilizer
FS-46, 150x150x5-47 [mm], with notch
Domed Plate for Friction Stabilizer
FS-46, 150x150x5-47 [mm], with notch, galvanized
Butterfly Plate for Friction Stabilizer
FS-33, 300x300x2.2-33 [mm]
Butterfly Plate for Friction Stabilizer
FS-33, 400x300x2.2-33 [mm]
Combination Plate for Friction Stabilizer
FS-33, 300x300x2.2-33 [mm]
Combination Plate for Friction Stabilizer
FS-33, 400x300x2.2-33 [mm]
Driver Tool for Friction Stabilizer
FS-33
Driver Tool for Friction Stabilizer
FS-39
Driver Tool for Friction Stabilizer
FS-46
6
Article No.
204011001120
204011011120
204011001180
204011011180
204011001210
204011111210
204011201240
204011111240
204011101360
204011501210
204041032500
204041032501
204041212400
204041232400
204041232401
204041732500
204041732501
204041045220
204041046220
204011055220
204011056220
204051010001
204051210001
204051710001
7
Austria
DSI Austria
DYWIDAG-Systems International GmbH
Alfred-Wagner-Strasse 1
4061 Pasching/Linz, Austria
Phone +43-7229-610 49 0
Fax +43-7229-610 49 80
E-mail [email protected]
www.alwag.com
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”ALWAG” (AM 952/79), ”AT” (AM 6138/2003),
”AT-SYSTEM” (AM 6139/2003),
”DYWI®” (4197869), ”LSC” (AM 4326/2008),
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”POWER SET” (AM 6163/2002), and
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Please note:
This brochure serves basic information
purposes only. Technical data and information
provided herein shall be considered
non-binding and may be subject to change
without notice. We do not assume any liability
for losses or damages attributed to the use
of this technical data and any improper
use of our products. Should you require
further information on particular products,
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