uses of rock bolts dsi

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  • Rock and Roof Bolts - DSI Civil

    Geotechnical Systems - Rock and Roof Bolts. At DSI Australia, we are a leading manufacturer & supplier of specialist strata reinforcement products to the underground mining sectors. We offer a comprehensive range of rock and roof bolts as well as accessories. To learn more, please visit DSI Australia's Mining website: Rock and Roof Bolts

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  • DYWIDAG Rock Bolts - DSI EMEA

    Expansion Shell Anchors Rock Bolts with Expansion Shell. Extremely fast and easy installation ; Immediate load bearing capacity in the borehole ; Galvanized version available ; Retensionable ; Various angle compensation designs available ; Posterior grouting is …

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  • Mechanical Rock Bolts - DSI Underground Canada

    A29 (gr75 for USA) 5/8' Bolt. 5/8' Bolt. 3/4' Bolt. 7/8' Bolt. Yield Strength, min. 15,600 lbs. (69 kN) 17,000 lbs.

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  • System Description - DSI USA

    Resin Anchored Rock Bolts. Resin bolts, bonded to rock or concrete by a fast curling polyester resin grout, are used extensively for slope stabilization, tie backs, tie downs, and for roof bolts. The resin grout develops a bond superior to that developed by cement grout.

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  • THREADBAR and Rebar Bolts (SN-Anchors) - DSI

    2019-5-29 · Bolts increase the self-supporting ability of the ground and limit the loosening of blocks as well as shear displacements. Furthermore, the frictional force between individual ground layers is increased. Common bolt types, such as SN-Anchors or a THREADBAR, are fully grouted over the entire length and are usually installed un-tensioned.

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  • Rock Bolts - Roof Bolts - Resin Anchoring - DSI ...

    DSI Underground is Australia’s largest manufacturer & supplier of specialist strata reinforcement & support products to the underground coal & metalliferous mining sectors. DSI Underground is also a major exporter of these products to the Asia-Pacific Region. DSI Underground has successfully established its Mining Business Sector.

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  • Cable Bolt Plain - DSI Underground Australia - Rock

    Rock Bolts – Cable Bolts 15.2mm Cable Bolt Plain ... Only DSI Underground rock bolt components should be used to enable the optimum performance of the bolt system to be obtained. DSI Underground Mining Products Division is Quality Assured to ISO 9001:2015, Registration QMS 41328.

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  • Practical Rock Engineering Chapter 14 Rockbolts and Cables

    2018-9-21 · The traditional method of grouting uphole rockbolts is to use a short grout tube to feed the grout into the hole and a smaller diameter breather tube, extending to the end of the hole, to bleed the air from the hole. The breather tube is generally taped to the bolt shank and this tends to cause problems because this tube and its attachments can be damaged during transportation or insertion into the hole. …

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  • Cable Bolt - DSI Underground Canada

    Cable Bolt. 270 ksi, low relaxation cable per ASTM A416. Supplied in any length, black or galvanized cable. Point anchored active bolt, tensioned after installation utilizing the hydraulic tensioning jack. Point-anchored passive bolt with pre-seated head. Wedge barrel shaped to accept 1 …

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  • Behavior of Fiber Glass Bolts, Rock Bolts and Cable

    2016-1-6 · Rock bolts and cable bolts tended to fail in tension at large shear displacements, while FG bolts in shear at small shear displacements due to its low shear strength and constant deformation modulus. The direct contribution of FG bolts to the joint shear strength ranged from 0.73 to 1.8 times its shear strength, while it was between 0.4 and 0.8 ...

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  • DYWIDAG Rock Bolts - DSI EMEA

    Expansion Shell Anchors Rock Bolts with Expansion Shell. Extremely fast and easy installation. Immediate load bearing capacity in the borehole. Galvanized version available. Retensionable. Various angle compensation designs available.

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  • Rock Bolts & Spiles - DSI Canada

    2019-4-30 · DCP-Rock Bolt The Rock Bolt for permanent Slope Stabilizations, Tunnels and Caverns (with angle compensation) High tensile and mild steel – DYWIDAG THREADBAR® 60-65 mm Ductile Expansion Shell 200 kN Capacity Corrugated Plastic Sheath 42 mm O.D. Tape O-Ring Seal Domed Plate Hemispherical Seat Screw-On Steel Cap DCP – Rock Bolt Features

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  • DCP-Rock Bolt - DSI Canada

    2013-9-17 · GRP Anchors and Rock Bolts are used as an alternative to conventional ground control elements made of steel. Thanks to the rapid development of production technologies and a higher amount of mechanical excavation, GRP systems have gained importance in underground construction around the world. Fields of application of GRP Anchors and

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  • DYWIDAG GRP Anchors and Rock Bolts

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  • Rock Bolt Properties - DSI Canada

    CT-Bolt System Description. Combination rock bolt. Application as temporary and long-term ground control system. Immediate point anchorage in terms of an expansion shell anchor. Post-grouting assembly features double corrosion protection. Fully automated or manual bolt installation. 1. Nut.

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  • CT-Bolt - DSI Civil

    Basic Concept The main application of the OMEGA-BOLT ® expandable friction bolt is temporary rock reinforcement for Underground applications. Bonding forces between the friction bolt and the ground are caused by form closure (mechanical interlocking) and friction transfer between the borehole wall and the bolt, which is expanded by hydraulic pressure.

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  • OMEGA-BOLT® Expandable Friction Bolts - DSI

    System Description. DYWIDAG-Systems International was a pioneer in the development of rock and soil anchor systems and technology. Today, DSI is a world leader in this field with an outstanding reputation of product quality and customer service. The double corrosion protected THREADBAR ® anchor is universally recognized as the 'standard' for ...

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  • General Overview - DSI USA

    2018-9-21 · installation. For short term applications the bolts are generally left ungrouted. For more permanent applications or in rock in which corrosive groundwater is present, the space between the bolt and the rock can be filled with cement or resin grout. Dowels or anchor bars generally consist of deformed steel bars which are grouted into the rock.

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  • Practical Rock Engineering Chapter 14 Rockbolts and Cables

    2020-2-29 · anchors and tensioning procedures for rock bolts are detailed in this publication. Failure to follow approved practices, may result in failure. 3. The applied safety factor for a product will depend on the degree of hazard or risk involved in the product application. This safety factor is governed by national codes, local codes

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  • DSI New Developments in Yieldable Rock Bolts

    2019-12-12 · 1 DSI New Developments in Yieldable Rock Bolts 2012 Dynamic Ground Support Application Symposium Thursday, September 13th, 2012 Renn Oler, Engineering Director Dywidag Systems International (DSI) Underground Sys Inc.

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  • The New DSI-PEAK Rock Bolt Challenges Conventional

    In comparison to similar 30t rock bolts, the DSI-PEAK Bolt is shorter and uses a larger hole size to reduce back pressure on bolt thrust. The system’s 2:1 FASLOC resin provides effective mixing in up to 30mm bore holes and reliable top anchoring with reduced bolt lengths.

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  • DYWIDAG Rock Bolts - DSI Middle East

    Expansion Shell Anchors Rock Bolts with Expansion Shell. Extremely fast and easy installation. Immediate load bearing capacity in the borehole. Galvanized version available. Retensionable. Various angle compensation designs available.

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  • DCP-Rock Bolt - DSI Canada

    2019-4-30 · DCP-Rock Bolt The Rock Bolt for permanent Slope Stabilizations, Tunnels and Caverns (with angle compensation) High tensile and mild steel – DYWIDAG THREADBAR® 60-65 mm Ductile Expansion Shell 200 kN Capacity Corrugated Plastic Sheath 42 mm O.D. Tape O-Ring Seal Domed Plate Hemispherical Seat Screw-On Steel Cap DCP – Rock Bolt Features

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  • Rock Bolt Properties - DSI Canada

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  • DYWI Inject Systems - Anchors and Rock Bolts

    2013-9-27 · Cable bolts: quick connector ®DYWI Drill Hollow Bar System or GRP hollow bars: injection adapter Injection hose Different types and dimensions available upon request Optional packer systems Targeted injection of resins DYWI® Inject SILO 8044 – Silicate Injection Resin for Anchors and Rock Bolts 8

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  • CT-Bolt - DSI Civil

    CT-Bolt System Description. Combination rock bolt. Application as temporary and long-term ground control system. Immediate point anchorage in terms of an expansion shell anchor. Post-grouting assembly features double corrosion protection. Fully automated or manual bolt installation. 1. Nut.

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  • (PDF) Dynamic testing of threadbar used for rock ...

    A key feature of both of these bolts is a yielding ... Strata Control Sy stems, DSI, Atlas ... An update of the numerical modelling of dynamic testing for threadbar used as rock reinforcement is ...

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  • BluGeo LP Rock Bolt - Bluey Technologies; Concrete ...

    Uses. BluGeo LP Rock Bolt has been designed as an easy to install, reliable grouting, flexible nut and plate configuration product suitable for civil engineering applications. BluGeo LP Rock Bolt incorporates a unique patent designed, low profile fixing nut to form a Double Corrosion Protection bolt.

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  • Critical embedment length and bond strength of fully ...

    2016-10-1 · The load-displacement curves of the rock bolts with a water-cement ratio of 0.46 are presented in Fig. 4. The test results of rock bolts with an embedment length of 100 mm are shown in Fig. 4a. All three rock bolts in the group slipped in the grout, and their ultimate loads varied from 39 to 48 kN. Download : Download high-res image (704KB)

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  • DCP-Rock Bolt - DSI Canada

    2019-4-30 · DCP-Rock Bolt The Rock Bolt for permanent Slope Stabilizations, Tunnels and Caverns (with angle compensation) High tensile and mild steel – DYWIDAG THREADBAR® 60-65 mm Ductile Expansion Shell 200 kN Capacity Corrugated Plastic Sheath 42 mm O.D. Tape O-Ring Seal Domed Plate Hemispherical Seat Screw-On Steel Cap DCP – Rock Bolt Features

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  • The New DSI-PEAK Rock Bolt Challenges Conventional

    In comparison to similar 30t rock bolts, the DSI-PEAK Bolt is shorter and uses a larger hole size to reduce back pressure on bolt thrust. The system’s 2:1 FASLOC resin provides effective mixing in up to 30mm bore holes and reliable top anchoring with reduced bolt lengths.

    Get Price
  • Rock Bolts & Spiles - DSI Canada

    ×. The language has been changed due to your browser's language settings. If you would like to see this page in another language, please use the language dropdown.

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  • Rock Bolt Properties - DSI Canada

    A key feature of both of these bolts is a yielding ... Strata Control Sy stems, DSI, Atlas ... An update of the numerical modelling of dynamic testing for threadbar used as rock reinforcement is ...

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  • (PDF) Dynamic testing of threadbar used for rock ...

    Mining rock bolts Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Mining rock bolts, quarry, aggregate, and different kinds of minerals.

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  • Mining rock bolts

    2016-10-1 · The load-displacement curves of the rock bolts with a water-cement ratio of 0.46 are presented in Fig. 4. The test results of rock bolts with an embedment length of 100 mm are shown in Fig. 4a. All three rock bolts in the group slipped in the grout, and their ultimate loads varied from 39 to 48 kN. Download : Download high-res image (704KB)

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  • Critical embedment length and bond strength of fully ...

    2014-5-1 · After about 2450 years of such exposure, we would expect rock facing south to be more severely weathered than rock facing north. Thus, the left panel is from the South Frieze and the right panel is from the North Frieze. 22. Cararra marble quarry, Italy 23.

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  • DYWIDAG Strand Anchors - DSI EMEA

    DSI Mining Products Manufacturer & Supplier at your Best MANUFACTURE. OPERATIONS & METALLURGY DSI Mining Products is an Australian based Company provides with Manufacturing & Supply Design for the mineral processing industry. Grinding Mills Crushers Mobile Equipment Chutes, Bins & Hoppers Conveyors Trommels OUR PRODUCTS. STEEL MILL LININGS RUBBER AND …

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  • DSI New Developments in Yieldable Rock Bolts

    2019-12-12 · 1 DSI New Developments in Yieldable Rock Bolts 2012 Dynamic Ground Support Application Symposium Thursday, September 13th, 2012 Renn Oler, Engineering Director Dywidag Systems International (DSI) Underground Sys Inc.

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  • (PDF) Notes on Rock Reinforcement Using Threadbar

    contractor usually assumed solid threadbar DSI [Dywidag] threadbar bolts, because that's what they are USED to seeing and using on other rockbolt jobs . So their winning bid would be 70K or 120K

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  • DYWI Drill System Installation Instructions ... - DSI Canada

    2019-4-30 · 3.4. Spiles and Rock Bolts Installed into loose rock or collapsing soils, DYWI® Drill Bar is used for fore poling at fault zones to provide a protective umbrella at the tunnel face or as rock bolts for portal stability. Other applications include face stabilization, use as an

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  • EMEA & CIS

    Tyta Resin Rock Bolts. Rock bolt assemblies with extended-length coarse thread, for multiple re-tightening after installation with resin capsules. Assemblies comprise the stud, matching nut and bearing plate washer, in a variety of bolt diameters and lengths. Rock bolt assemblies are packaged as complete, ready-to install units.

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  • Contact - DSI Canada

    DYWIDAG Rock Bolts DYWIDAG Driven Ductile Iron Pile DYWI ® Drill Hollow Bar System ... How to get to DSI Contact details Surrey. DSI Canada Civil Ltd. 19433 96th Avenue, Suite 103 BC V4N 4C4 Surrey Canada Phone ...

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  • Ground Support Brochure - Sandvik Mining and Rock

    When handling Sandvik rock bolts, be aware of the bolts mass and use correct handling techniques; crates can be stacked a maximum of four (4) high on compact and level ground, and one (1) high in all other instances. Use of Sandvik rock bolts may require the operator to enter the machine boom area, always ensure the boom is isolated in accordance

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  • DSI Mining Products - Manufacturer & Supplier.

    DSI Mining Products Manufacturer & Supplier at your Best MANUFACTURE. OPERATIONS & METALLURGY DSI Mining Products is an Australian based Company provides with Manufacturing & Supply Design for the mineral processing industry. Grinding Mills Crushers Mobile Equipment Chutes, Bins & Hoppers Conveyors Trommels OUR PRODUCTS. STEEL MILL LININGS RUBBER AND …

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  • An evaluation of the bond strength of multiple resin bolt ...

    function of the strength and stiffness of the bond between the bolt and the rock. In the case of resin bolts, Campbell et al (2004) assert that this bond is provided by the resin mix as, in a fully resin-bonded rock bolt, the load transfer to the bolt is dependent on the shear stress capable of being generated on the

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  • BlueScope Steel Australia: DSI Leads World in Innovation

    2006-6-8 · DSI Mining continues to grow, internationally, through acquisition. DSI Mining is a member of the Brand Partnership Program by BlueScope Steel, and uses a range of formable and high strength hot rolled coil products by BlueScope Steel, including HA350 and HA250, because of …

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  • 5 Practical Uses of River Rock for Your Landscaping

    2021-5-20 · River rock is a versatile organic material that comes in a colourful range of grays, browns, and beiges. Besides its diverse palette, it can have great applications to different landscaping installations that can breathe life into your lawn’s design. The Many Practical Uses of River Rock

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