omega-bolt expandable friction bolt - dywidag norge€¦ · omega-bolt® expandable friction bolt...
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OMEGA-BOLT® Expandable Friction Bolt
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The main application of the OMEGA-BOLT® Expandable Friction Bolt is temporary rock reinforcement in Mining and Tunneling.
Bonding forces between the friction bolt and the rock mass are caused by form closure and friction transfer between the borehole wall and the rock bolt which is expanded by hydraulic pressure.
Introduction
Introduction .................................................................................................................. 3
Fields of Application ..................................................................................................... 4
Main Advantages .......................................................................................................... 5
System Description ...................................................................................................... 5
System Components .................................................................................................... 6
Specifications ............................................................................................................... 7
Installation Procedure ................................................................................................... 9
Accessories ................................................................................................................ 10
Order Information ....................................................................................................... 10
Contents
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System Description
Main Advantages
Immediate full load bearing capacity over the entire installed bolt length
Low sensitivity against vibrations caused by blasting works
Ability to maintain load-bearing capacity even when undergoing deformations
Safe and easy installation
No additional building materials required for installation
Flexibility in case of differing or varying borehole diameters
Quality check during every single installation
Different customized high-pressure pumps available
Manual or automated installation by expansion of the omega-shaped profile with high-pressure water
Frictional load transfer between bolt and borehole
Adjustment of the expanded profile to irregularities of the borehole wall and variations in borehole diameter
OMEGA-BOLT® Version “Plus“ provides improved elongation properties
Fields of Application
Systematic reinforcement of underground excavations
Temporary ground control
Zinc or duplex coated versions available upon request
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System Components
Bushing Head
Domed Plate
OMEGA-BOLT® friction bolt
Upper bushing
Bushing Head Flared, with inflation hole
Specifications
No. Characteristic Value / Type 1) UnitEFB-120 EFB-160 EFB-240
EFB-120+ EFB-160+ EFB-240+1 External diameter Ω-profile [mm] 27,5 36 362 External diameter original tube [mm] 41 54 543 Wall thickness [mm] 2 2 34 Diameter bushing head [mm] 30 / 36 41 / 48 41 / 485 Diameter upper bushing [mm] 28 38 386 Required borehole diameter [mm] 32 - 39 43 - 52 43 - 527 Optimum borehole diameter [mm] 35 - 38 45 - 51 45 - 518 Inflation pressure [bar] 300 250 3009 Delivery lengths 2) [m] 1,0 - 8,0
1) Status: 2012-05 ; 2) Expanded profile
1) Status: 2012-05 ; 2) Off-size lengths are available upon request
No. Characteristic Value / Type 1) Unit EFB-120 EFB-160 EFB-240 EFB-120+ EFB-160+ EFB-240+1 Yield load 2) [kN] 100 130 200 90 120 1702 Characteristic ultimate load 2) [kN] 130 170 250 120 160 2403 Nominal ultimate load 2) [kN] 120 160 240 120 160 2304 Characteristic ultimate strain 2) [%] 15 15 15 30 30 305 Nominal ultimate strain 2) [%] 10 10 10 20 20 20
Domed Plate Different designs and dimensions available upon request
OMEGA-BOLT® friction bolt
Upper bushing
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Installation Procedure
Order Information
1. Borehole drilling
Accessories
Tough design and easy handling
Fast installation due to high pump performance
Warranty of optimum expansion of the OMEGA-BOLT®
OMEGA-BOLT® High-Pressure Pump Type 300E
2. Connection to the installation chuck and insertion of the OMEGA-BOLT® into the borehole
Article Description Notes Article No.OMEGA-BOLT® EFB-120, L = X.X00 [mm]; "XX" ... Length 2072101210XXOMEGA-BOLT® EFB-160, L = X.X00 [mm]; "XX" ... Length 2074101610XXOMEGA-BOLT® EFB-240, L = X.X00 [mm]; "XX" ... Length 2074102410XXOMEGA-BOLT® Sleeve pipe, d = 48 [mm], L = 300 [mm] 207050002030OMEGA-BOLT® Sleeve pipe, d = 38 [mm], L = 300 [mm] 207050001030OMEGA-BOLT® Sleeve pipe, d = 51 [mm], L = 300 [mm] 207050003030OMEGA-BOLT® Domed Plate 150x150x8-030 [mm] 207240013008OMEGA-BOLT® Domed Plate 180x180x8-030 [mm] 207240014008OMEGA-BOLT® Domed Plate 125x125x6-030 [mm] 207240012006OMEGA-BOLT® Domed Plate 200x200x10-040 [mm] 207440015010OMEGA-BOLT® Domed Plate 150x150x8-40 [mm] 207440013008OMEGA-BOLT® Flate Plate 150x150x8-030 [mm] 207240023008OMEGA-BOLT® Flate Plate 150x150x8-040 [mm] 207440023008OMEGA-BOLT® Flate Plate 180x180x8-040 [mm] 207440024008OMEGA-BOLT® Flate Plate 180x180x8-030 [mm] 207240024008OMEGA-BOLT® Flate Plate 200x200x10-040 [mm] 207440025010OMEGA-BOLT® Flate Plate 200x200x12-040 [mm] 207440025012
Characteristics Unit ValueDimensions (L x B x H) [mm] 800 x 400 x 455
Weight [kg] 90Max. flow rate [l/min] 21
Operating pressure 1) [bar] 300Max. operating pressure [bar] 320
Power supply [V] 3 ~ 400Nominal power [kW] 11
Electrical connection [A] 25Pumping rotation speed [rpm] 1400
1) Required tube connection 3/4“, water connection pressure: 2 [bar]
Alternative high-pressure pumps available upon request
OMEGA-BOLT® pull test kit available upon request
3. Expansion of the OMEGA-BOLT® with high-pressure water
4. De-coupling from the chuck after the OMEGA-BOLT® is fully widened
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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 liabilityfor 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, please do not hesitate to contact us.
"ALWAG" (AM 952/79), "AT" (AM 6138/2003), "AT-SYSTEM” (AM 6139/2003), "DYWI®" (4197869), "LSC" (AM 4326/2008), "OMEGA-BOLT®" (3258282), "POWER SET" (AM 6163/2002), and "TUBESPILE" (AM 4328/2008) are registered trademarks of DYWIDAG-Systems International GmbH."Combi Coat®" and "CT-Bolt" are trademarks of Vik Ørsta AS. DYWIDAG-Systems International GmbH is a partner of Vik Ørsta AS.
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EMEADYWIDAG-Systems International GmbHAlfred-Wagner-Strasse 14061 Pasching/Linz, AustriaPhone +43-7229-610 49 0Fax +43-7229-610 49 80 E-mail [email protected]
North AmericaDSI Underground Systems Inc.9786 S Prosperity RoadWest Jordan, UT 84081, USAPhone +1-801-973 7169Fax +1-801-973 7172E-mail [email protected]
South AmericaDSI Chile Industrial Ltda. Las Encinas #1387, Valle GrandeLampa, Santiago de Chile, ChilePhone +56-2-596 96 20Fax +56-2-596 96 69E-mail [email protected]
APAC/ASEANDYWIDAG-Systems International Pty. Ltd.25 Pacific HighwayBennetts Green, NSW 2290, AustraliaPhone +61-2-49 48 90 99Fax +61-2-49 48 99 56E-mail [email protected]/au
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