uses of dywidag rock bolts

Just fill in the form below, click submit, you will get the price list, and we will contact you within one working day. Please also feel free to contact us via email or phone. (* is required).

  • Rock Bolts and Meshes - DYWIDAG

    2020-11-9 · This approach uses rock bolts on the face to secure unstable masses of rock in position The high tensile steel mesh is used to support the rock between the bolt positions By strategically placing the rock bolts in low points or depressions on the rock face, the mesh can be secured around outcrops of unstable material Once

    Get Price
  • DYWIDAG Rock Bolts - DSI EMEA

    Extremely fast and easy installation. Immediate load bearing capacity in the borehole. Galvanized version available. Retensionable. Various angle compensation designs available. Posterior grouting is possible – increased load bearing capacity and durability.

    Get Price
  • DYWIDAG GRP Anchors and Rock Bolts

    2013-9-17 · Rock Bolts range from cuttable rock bolts for underground coal mining or ground control for mechanical excavations to injection lances or forepoling. DYWIDAG-Systems International provides a diversified portfolio of GRP systems for various applications in Mining, Tunneling, and Civil Engineering which is completed by longtime experience

    Get Price
  • Rock Bolts - DYWIDAG-Systems International UK

    The steel threadbar is used to bond unstable rock to stable sections, beyond the face, and requires both capacity for tensile and shear loads. Rock bolts are fully bonded and unlike ground anchors are passive installations. Unless it has been severely weathered, rock will usually allow for an open hole to be drilled without any risk of collapse.

    Get Price
  • DYWIDAG Rock Bolts - DCP-Rock Bolt - DSI Canada

    DYWIDAG Rock Bolts - DCP-Rock Bolt The Rock Bolt for permanent Slope Stabilizations, Tunnels and Caverns (with angle compensation) High tensile and mild steel – DYWIDAG THREADBAR ® 1. Ductile Expansion Shell 200 kN Capacity

    Get Price
  • Mechanical Anchors and Rebar Rock Bolts - Dywidag Norge

    2013-9-22 · Anchors and rock bolts, which are commonly assigned the general term ”rock bolts”, are used for rock reinforcement in Mining and Tunneling. Rock bolts limit the loosening of blocks out of the rock mass and shear displacements. Furthermore, the frictional force between individual rock layers is …

    Get Price
  • DYWIDAG THREADBAR ® Anchors - General

    DYWIDAG Soil Anchors are generally used to: Anchor support structures for excavations such as sheet pile walls, soldier piles and lagging, drilled piles and slurry walls Counteract uplift forces in structures subjected to buoyancy lateral loads Transfer external forces to the ground; e.g., wind, earthquake

    Get Price
  • System Description - DSI Canada

    The DYWIDAG THREADBAR ® s are used extensively for rock anchors because of their versatility, strength, performance characteristics, and off-the-shelf availability of the most components. The DYWIDAG THREADBAR ® s for prestressing and reinforcing have a continuous rolled-in pattern of threadlike deformations along their entire length.

    Get Price
  • Geotechnical Systems - DSI Underground

    2019-7-6 · Rock fall protection mesh can also be fixed to the rock using this technique. Soil nailing stabilizes and consolidates the complete soil. The entire soil wedge including the slip circle is nailed and secured against tilting, sliding, gliding, shear failure and loss of position. ® …

    Get Price
  • Installation Quality Guidelines - DSI Underground

    Slow set resin is used for the remaining 2/3 length to fully encapsulate the bolt. The slow set must be sufficiently slow to allow the plate washer and nut to be installed and the bar tensioned before the resin set up. Rebar bolts can be tensioned by torquing the nut. Dywidag bolts require a greater torque to achieve adequate tension.

    Get Price
  • DYWIDAG Rock Bolts - DCP-Rock Bolt - DSI Canada

    DYWIDAG Rock Bolts - DCP-Rock Bolt. The Rock Bolt for permanent Slope Stabilizations, Tunnels and Caverns (with angle compensation) High tensile and mild steel – DYWIDAG THREADBAR®

    Get Price
  • Innovative solution using DYWIDAG Rock Bolts for

    2,390No. rock bolts 20 mm dia., grade 900/1100, THREADBARS ® - ultimate load 345 kN ; 5,330No. rock bolts 26.5 mm dia., grade 900/1030, THREADBARS ® - ultimate load 586 kN. The DYWIDAG Rock Bolting System has been very successful and continued use of the system is expected.

    Get Price
  • Rock Bolt Properties - DSI USA

    DYWIDAG THREADBAR Properties and Hardware Dimensions. 27th March 2018. 265.50 KB Download.

    Get Price
  • Stabilization of Rock Face with Rock Bolts | DYWIDAG

    The GEWI® Rock Bolts with their total length of 1,300m were used for securing the protective mesh, which was attached to the rock face.The GEWI® Rock Bolts were bored into the rock in individual lengths of approximately 3m, post-tensioned and subsequently injected with grout.

    Get Price
  • Rock Bolt Properties - DSI Canada

    DYWIDAG THREADBAR ® - Technical Data [Imperial Units] 29 th May 2018 186.10 KB Download

    Get Price
  • DYWI Inject Systems - Anchors and Rock Bolts - Dywidag

    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

    Get Price
  • DYWIDAG THREADBAR ® Anchors - General

    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 ...

    Get Price
  • Anchor Installation - DSI USA - dsiamerica.com

    Drill smallest diameter hole which is compatible with the bolt and cartridge diameter selected. Insert Resin Cartridges. Use fast setting resin for bond length. If full encapsulation is desired, use slow setting resin or cement grout in the upper length to accommodate stressing. Insert DYWIDAG THREADBAR®. Spin bar with drill tool at about 100 rpm.

    Get Price
  • Underhand Cut and Fill Mining as Practiced in Three

    the vertical installation of DYWIDAG rock bolts in loose rock on the floor of the mined-out stope cut in a predetermined pattern prior to backfilling the cut with cemented mill tailings. The next cut is mined beneath this fill, which becomes a reinforced concrete beam as the stope walls close upon it.

    Get Price
  • DYWIDAG THREADBAR® - Technical Data Imperial

    2018-5-28 · DYWIDAG THREADBARS - TECHNICAL DATA [IMPERIAL UNITS] April 16th, 2018, DSI Surrey, BC STEEL GRADE Nominal Bar Diameter Max. Bar ø Across Ribs Nominal Cross Section Area As Yield Load Py= fyAs Ultimate Load Pu= fuAs Nominal Weight Mill Length Direction of Thread in in in2 kips kips lbs/ft ft L R 160 ksi (fu) Hot-Rolled Threadbar

    Get Price
  • DYWI Inject Systems - Anchors and Rock Bolts - Dywidag

    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

    Get Price
  • Mechanical Anchors and Rebar Rock Bolts - Dywidag

    2013-9-22 · Rock bolts such as SN-Anchors or the DYWIDAG THREADBAR® are fully grouted over the whole length and are usually installed untensioned. Generally, this does not apply to resin rock bolts, which can be actively pre-tensioned using resin cartridges with different curing times. Which rock bolt system is the best one

    Get Price
  • The Leeville Mine: DYWIDAG GRP Rock Bolts and

    The Leeville Mine: DYWIDAG GRP Rock Bolts and DYWI ® Inject Systems ensure Safety in Aggressive Environments. The Newmont Mining Corporation was founded in 1921 in the USA and is a globally leading producer of gold and copper.

    Get Price
  • DYWIDAG Strand Anchor Systems - DSI Canada

    2019-4-30 · Rock Anchors Rock anchors are post-tensioned tendons installed in drilled holes for which at least the entire bond length is located in rock The anchor force is transmitted to the rock by bond between the grout body and the rock Rock anchors can remain unbonded in the free stressing length allowing the anchor to be checked and re-tensioned

    Get Price
  • Anchor Types and Corrosion Protection - DSI USA

    DYWIDAG Rock Bolts. System Description; Anchor Design; Anchor Installation; Rock Bolt Properties; DYWI ® Drill Hollow Bar System. General Notes, Installation Advantages; DYWI ® Drill Hollow Bar System Properties; Installation; Soil Nails; Temporary Ground Anchors; Rock Bolts & Spiles; Installation Accessories; Stressing and Testing ...

    Get Price
  • Anchor Installation - DSI USA - dsiamerica.com

    Drill smallest diameter hole which is compatible with the bolt and cartridge diameter selected. Insert Resin Cartridges. Use fast setting resin for bond length. If full encapsulation is desired, use slow setting resin or cement grout in the upper length to accommodate stressing. Insert DYWIDAG THREADBAR®. Spin bar with drill tool at about 100 rpm.

    Get Price
  • Geotechnical Systems - DSI Underground

    2019-7-6 · GEWl® Soil and Rock Bolts DYWI® Drill Soil and Rock Bolts Slope Stabilization and Sidehill Cuts The development and expansion of infrastructure – and, more specifically, the construction of high-speed corridors – poses significant requirements in terms of route planning. The expansion of motorways by adding more lanes often

    Get Price
  • Technical Data Sheet - Dywidag Norge

    2014-1-31 · Resin Cartridge is used to anchor bolts to the different ground conditions. The consolidation of the resin, the anchor bolt and neighboring stratum provides the necessary strength and rigidity to prevent sag by acting as a reinforcement which anchors the individual stratified layers of rock into a single high strength beam.

    Get Price
  • Kinloc Bolt - DSI Underground Australia - Rock Bolts

    Standard bolt lengths range from 1500mm to 3000mm in 300mm increments. Non-standard lengths are available on application. Kinloc Bolts are supplied in standard packs of 150 bolts. Notes. Only DSI Underground rock bolt components should be used to enable the optimum performance of the bolt system to be obtained.

    Get Price
  • Innovative solution using DYWIDAG Rock Bolts for

    DYWIDAG Strand Anchors. Permanent (DCP) Anchors; Temporary Anchors. Temporary Anchor with Removable Free Length; Equipment; GEWI ® Pile System; DYWIDAG Soil Nails. Accessories; Testing; DYWI ® Drill Hollow Bar System; DYWIDAG Tie Rods; DYWIDAG Equipment; Hulk Earth Anchors; Rock and Roof Bolts; Tunneling Products & Systems. CT-Bolt; DCP Bolt ...

    Get Price
  • The Leeville Mine: DYWIDAG GRP Rock Bolts and

    The Leeville Mine: DYWIDAG GRP Rock Bolts and DYWI ® Inject Systems ensure Safety in Aggressive Environments. The Newmont Mining Corporation was founded in 1921 in the USA and is a globally leading producer of gold and copper.

    Get Price
  • Extension of the BR 101 Motorway: DYWIDAG Rock

    Extension of the BR 101 Motorway: DYWIDAG Rock Bolts stabilize the Formigão Tunnel. A new road tunnel was recently opened in southern Brazil near Tubarão, a town that is located near the Atlantic coast. The Formigão Tunnel is the last of four new tunnels built during the widening of …

    Get Price
  • The Mandacarú Tunnel in Bahia: DYWIDAG Rock

    The Mandacarú Tunnel in Bahia: DYWIDAG Rock Bolts secure Brazil’s Future as an Exporter. Brazil, the world’s second largest producer and exporter of soy beans after the USA, plans to increase both production and exportation in the years to come.

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

    DYWIDAG-Systems International Pty. Ltd. (DSI) is Australia’s largest manufacturer & supplier of specialist strata reinforcement & support products to the underground coal & metalliferous mining sectors.DSI is also a major exporter of these products to the Asia-Pacific Region.

    Get Price
  • LOAD CAPACITY OF GROUTED ROCK BOLTS DUE TO

    2017-5-17 · the rock bolts are subjected to both shear and tensile forces at the same time. In addition, the shear force was constantly higher than the tensile forces and that the shear forces were about 10% of the total shear resistance for normal loads. This implies that it is important to use a failure criterion for the rock bolts that considers

    Get Price
  • Practical Rock Engineering Chapter 14 Rockbolts and

    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.

    Get Price
  • 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.

    Get Price
  • Eyebolts - DSI Underground Canada

    DSI Underground supplies welded, bent, open, and „L“ bolts as well as custom manufacturing them to your length and threading requirements. These bolts are generally used for hanging piping, cable, and equipment. High strength steel. Grade 100 K. Bar diameteres: 5/8', 3/4', 7/8'.

    Get Price
  • Installation Quality Guidelines - DSI Underground

    Proper Grade Plates - Thin or weak plates will deform at low bolt tension.The bolt could also rip through the plate during installation or by bolt loading. Plates should meet ASTM F432 standards. Perpendicular Installation - Bolts should be installed as near perpendicular to the rock surface as possible. Bolts not perpendicular to the plate and rock surface will be marginally weaker and will ...

    Get Price
  • The Mandacarú Tunnel in Bahia: DYWIDAG Rock

    The Mandacarú Tunnel in Bahia: DYWIDAG Rock Bolts secure Brazil’s Future as an Exporter. Brazil, the world’s second largest producer and exporter of soy beans after the USA, plans to increase both production and exportation in the years to come.

    Get Price
  • New Tunnels in Brazil: More Safety with DYWIDAG

    New Tunnels in Brazil: More Safety with DYWIDAG Rock Bolts The BR 381 motorway, which links the federal states of Minas Gerais and São Paulo, is one of the most dangerous roads in Brazil. Furthermore, the motorway is heavily congested by truck traffic coming from the mines and steel mills in Minas Gerais.

    Get Price
  • DYWI Drill Hollow Bar System - Dywidag Norge

    2013-9-15 · uses: intermediate or granular soils, soft mudstones spt 0-55 thread: r51 Ø 115 mm Flat face Full face carbide for broken rock or harder ground 30° forward flush uses: fractured ground, broken rock, medium rock uCs 80 mn/mm² thread: r25, r32, r38 Øs 42, …

    Get Price
  • Construction and Structural Repair Solutions - DSI

    DYWIDAG-Systems International Pty Ltd has been Australia’s largest manufacturer and supplier of specialist ground reinforcement and support products since opening in 2002. In order to complete its product range for the civil market, DYWIDAG-Systems International has added specialized construction systems such as DYWIDAG Geotechnical products ...

    Get Price
  • 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.

    Get Price
  • EFFECTS OF BOLT SPACING, BOLT LENGTH, AND ROOF

    2012-8-29 · bolts was installed at mid- pillar, and one row was instal led in or near the intersec tion. In addition, one row of bolts was installed in a pass-and-a-half entry be tween t he No. 3 entry and the 4 room at test site 5. The trona is mined with a borer miner …

    Get Price
  • Kinloc Bolt - DSI Underground Australia - Rock Bolts

    Standard bolt lengths range from 1500mm to 3000mm in 300mm increments. Non-standard lengths are available on application. Kinloc Bolts are supplied in standard packs of 150 bolts. Notes. Only DSI Underground rock bolt components should be used to enable the optimum performance of the bolt system to be obtained.

    Get Price
  • LOAD CAPACITY OF GROUTED ROCK BOLTS DUE TO

    2017-5-17 · the rock bolts are subjected to both shear and tensile forces at the same time. In addition, the shear force was constantly higher than the tensile forces and that the shear forces were about 10% of the total shear resistance for normal loads. This implies that it is important to use a failure criterion for the rock bolts that considers

    Get Price
  • Rock Anchors & Soil Anchors | Rembco Geotechnical

    To comply with the need for bolts which will satisfactorily anchor a broad range of variable rock formations, Williams has developed a complete family of rock bolts with a simple and efficient system of installation. Williams offers a complete line of rental equipment for installing, testing and grouting of …

    Get Price