OMEGA-BOLT Expandable Friction Bolt
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Contents Introduction... 3 Fields of Application... 4 Main Advantages... 4 System Description... 4 System Components... 5 Specifications... 5 Installation Procedure... 6 Accessories... 6 Order Information... 6 Introduction 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. 3
Fields of Application Systematic reinforcement of underground excavations Temporary ground control 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 System Description 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 Zinc or duplex coated versions available on request 4
System Components Bushing Head Flared, with inflation hole Domed Plate Different designs and dimensions available on request OMEGA-BOLT friction bolt Upper bushing Domed Plate Upper bushing Bushing Head OMEGA-BOLT friction bolt Specifications 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 90 120 170 2 Characteristic ultimate load 2) [kn] 130 170 250 120 160 240 3 Nominal ultimate load 2) [kn] 120 160 240 120 160 230 4 Characteristic ultimate strain 2) [%] 15 15 15 30 30 30 5 Nominal ultimate strain 2) [%] 10 10 10 20 20 20 1) Status: 2012-05 ; 2) Expanded profile No. Characteristic Value / Type 1) Unit EFB-120 EFB-160 EFB-240 EFB-120+ EFB-160+ EFB-240+ 1 External diameter Ω-profile [mm] 27.5 36 36 2 External diameter original tube [mm] 41 54 54 3 Wall thickness [mm] 2 2 3 4 Diameter bushing head [mm] 30 / 36 41 / 48 41 / 48 5 Diameter upper bushing [mm] 28 38 38 6 Required borehole diameter [mm] 32-39 43-52 43-52 7 Optimum borehole diameter [mm] 35-38 45-51 45-51 8 Inflation pressure [bar] 300 250 300 9 Delivery lengths 2) [m] 1.0-8.0 1) Status: 2012-05 ; 2) Off-size lengths are available on request 5
Installation Procedure 1. Borehole drilling Accessories OMEGA-BOLT High-Pressure Pump Type 300E Characteristics Unit Value Dimensions (L x B x H) [mm] 800 x 400 x 455 Weight [kg] 90 Max. flow rate [l/min] 21 Operating pressure 1) [bar] 300 Max. operating pressure [bar] 320 Power supply [V] 3 ~ 400 Nominal power [kw] 11 Electrical connection [A] 25 Pumping rotation speed [rpm] 1,400 1) Required tube connection 3/4", water connection pressure: 2 [bar] 2. Connection to the installation chuck and insertion of the OMEGA-BOLT into the borehole Tough design and easy handling Fast installation due to high pump performance Warranty of optimum expansion of the OMEGA-BOLT Alternative high-pressure pumps available on request OMEGA-BOLT pull test kit available on request 3. Expansion of the OMEGA-BOLT with high-pressure water Order Information 4. De-coupling from the chuck after the OMEGA-BOLT is fully widened Article Description Article No. OMEGA-BOLT EFB-120, L = X,X00 [mm]; XX... Length 2072101210XX OMEGA-BOLT EFB-160, L = X,X00 [mm]; XX... Length 2074101610XX OMEGA-BOLT EFB-240, L = X,X00 [mm]; XX... Length 2074102410XX OMEGA-BOLT Sleeve pipe, d = 48 [mm], L = 300 [mm] 207050002030 OMEGA-BOLT Sleeve pipe, d = 38 [mm], L = 300 [mm] 207050001030 OMEGA-BOLT Sleeve pipe, d = 51 [mm], L = 300 [mm] 207050003030 OMEGA-BOLT Domed Plate 150x150x8-030 [mm] 207240013008 OMEGA-BOLT Domed Plate 180x180x8-030 [mm] 207240014008 OMEGA-BOLT Domed Plate 125x125x6-030 [mm] 207240012006 OMEGA-BOLT Domed Plate 200x200x10-040 [mm] 207440015010 OMEGA-BOLT Domed Plate 150x150x8-40 [mm] 207440013008 OMEGA-BOLT Flate Plate 150x150x8-030 [mm] 207240023008 OMEGA-BOLT Flate Plate 150x150x8-040 [mm] 207440023008 OMEGA-BOLT Flate Plate 180x180x8-040 [mm] 207440024008 OMEGA-BOLT Flate Plate 180x180x8-030 [mm] 207240024008 OMEGA-BOLT Flate Plate 200x200x10-040 [mm] 207440025010 OMEGA-BOLT Flate Plate 200x200x12-040 [mm] 207440025012 6
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EMEA 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 alwag@dywidag-systems.at www.alwag.com North America DSI Underground Systems Inc. 9786 S Prosperity Road West Jordan, UT 84081, USA Phone +1-801-973 7169 Fax +1-801-973 7172 E-mail dsiunderground@dsiunderground.com www.dsiunderground.com South America DSI Chile Industrial Ltda. Las Encinas #1387, Valle Grande Lampa, Santiago de Chile, Chile Phone +56-2-596 96 20 Fax +56-2-596 96 69 E-mail informaciones@dywidag-systems.cl www.dsi-chile.com APAC/ASEAN DYWIDAG-Systems International Pty. Ltd. 25 Pacific Highway Bennetts Green, NSW 2290, Australia Phone +61-2-49 48 90 99 Fax +61-2-49 48 99 56 E-mail dsi@dywidag.com.au www.dsiminingproducts.com/au 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, 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. Austria Argentina Australia belgium Bosnia and herzegovina Brazil Canada Chile Colombia Costa Rica Croatia Czech republic Denmark Egypt estonia Finland France Germany Greece GUATEMALA HONDURAS Hong Kong Indonesia Italy Japan Korea Lebanon Luxembourg Malaysia Mexico Netherlands Norway Oman Panama Paraguay Peru POLAND Portugal Qatar Saudi Arabia singapore South Africa Spain Sweden Switzerland Taiwan Thailand Turkey United Arab Emirates United kingdom Uruguay USA Venezuela 04329-1/04.13-web he