the best rock bolts dsi

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).

  • Mechanical Anchors, Resin and Rebar Rock Bolts - DSI ...

    Which rock bolt system is the best one to use depends on a variety of factors, which have to be considered in each individual case. DSI Underground has longtime experience in the development, production and supply of mechanical anchors and rock bolts.

    Get Price
  • OneStep - DSI Underground Australia - Rock Bolts

    DSI OneStep self-drilling bolt has revolutionised rock bolting. It integrates the currentlyused bolt installation components into one self-contained product, providing a robust system for fast, easy, safe, and reliable ground control.

    Get Price
  • DYWIDAG Rock Bolts - DSI EMEA

    Face bolts. Ground support. Roof support. Medium hard to hard rock. Potash and salt. 1. Anchor Nut. 2. Bearing Plate.

    Get Price
  • The Leeville Mine: DSI GRP Rock Bolts and DSI Inject ...

    Glass fiber reinforced tendons feature excellent corrosion protection and low weight, have a high tensile load-bearing capacity, and can be easily cut by mechanical excavators or shearers if necessary. For the comprehensive test, more than 200 CH25-250 DSI GRP hollow bars as well as self-drilling, CR32-340, DSI GRP hollow bar rock bolts were used.

    Get Price
  • OMEGA-BOLT® Expandable Friction Bolts - DSI

    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.

    Get Price
  • High Strength Bar - DSI Underground Australia - Rock

    Manufactured from a special hot rolled deformed bar designed by DSI Underground. This bolt features a rib pattern which actively assists with mixing the chemical anchors during installation. The deformed bar rib pattern improves load transfer properties. The rolled thread strength nominally equals the column strength of the bar.

    Get Price
  • 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.

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

    2019-5-29 · Rebar Bolts (SN-Anchors) Field-proven bolting system. Effective and standardized installation. Embedding of the tension member in grout ensures optimal bond strength. Low sensitivity concerning the actual diameter of the borehole. ALWAGRIP special rib geometry for optimized bond strength available on request.

    Get Price
  • DYWIDAG GRP Anchors and Rock Bolts

    2013-9-17 · 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 [email protected] 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

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

    In view of these circumstances, DSI proposed a combined ground control system consisting of DYWIDAG GRP Rock Bolts and DYWI ® Inject Resins. Glass fiber reinforced tendons feature excellent corrosion protection and low weight, have a high tensile load-bearing capacity, and can be easily cut by mechanical excavators or shearers if necessary.

    Get Price
  • 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.

    Get Price
  • GRP Anchors and Rock Bolts - DSI Schaum Chemie

    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 Rock Bolts ...

    Get Price
  • Anchors, Rock Bolts & Pre-Support - DSI Tunneling

    Spiles and forepoling boards are used as temporary pre-support system for the working area. They ensure the stability of the perimeter of the open span until the primary lining is installed. Depending on the foundation soil characteristics, different spile types are used in order to achieve the best …

    Get Price
  • The Rogun Dam: DSI supplies DYWIDAG Rock Bolts

    Within a mere 11 months, DSI produced 4,595 DYWIDAG Rock Bolts with a total weight of 1,360t in its plants in Koenigsbrunn and Nauen, Germany. This included 2,162 36 WR double corrosion protected DYWIDAG Rock Bolts, 825 temporary 36 WR DYWIDAG Rock Bolts and 1,608 double corrosion protected, 47 WR DYWIDAG Rock Bolts with a total length of 71,357m.

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

    2019-5-29 · Rebar Bolts (SN-Anchors) Field-proven bolting system. Effective and standardized installation. Embedding of the tension member in grout ensures optimal bond strength. Low sensitivity concerning the actual diameter of the borehole. ALWAGRIP special rib geometry for optimized bond strength available on request.

    Get Price
  • System Description - DSI USA

    Resin anchored rock bolts are installed in all types of rock or concrete. Track drills, tire mounted drills, jacklegs or stoppers may be used to bore the hole and install the DYWIDAG Bolt. DYWIDAG Resin Anchors are used where expansion shells are inappropriate. The resin anchorage length is easily adjusted to fit the varying rock conditions.

    Get Price
  • OMEGA-BOLT® Expandable Friction Bolts - DSI

    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.

    Get Price
  • DYWIDAG GRP Anchors and Rock Bolts

    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

    Get Price
  • Rock Bolts - DYWIDAG-Systems International UK

    Rock Bolts. Rock Bolts are generally formed from solid threadbar systems, i.e. bar, nut, couplers and plates. The steel threadbar is used to bond unstable rock to stable sections, beyond the face, and requires both capacity for tensile and shear loads.

    Get Price
  • 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)

    Get Price
  • GRP Anchors and Rock Bolts - DSI Schaum Chemie

    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 Rock Bolts ...

    Get Price
  • Rock Bolts & Spiles - DSI Canada

    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
  • DYWI Inject Systems - Anchors and Rock Bolts

    ×. 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.

    Get Price
  • Rock Bolt Properties - DSI Canada

    Typical applications include: rock bolts & rock dowels, stitching bars and ties. DYWIDAG HCR Threadbars are also suitable for the fixing of stainless steel DELTAX ® & TECCO ® STAINLESS mesh, used for slope protection applications. DYWIDAG HCR Threadbar is manufactured from stainless steel and is available in both 1,4301 (304) and 1,4401 (316 ...

    Get Price
  • DYWIDAG HCR Stainless Steel - DYWIDAG-Systems

    Tunneling Products & Systems - DCP Bolt, 579kN 1. Ductile Expansion Shell - 200 kN Capacity 2. Corrugated Plastic Sheath - 42 mm O.D. 3. Tape 4. O-Rin...

    Get Price
  • DCP Bolt, 579kN - DSI Civil

    2017-11-14 · line rock bolts, which are manufactured from a special type of steel. Another development is the Swellex Premium line of rock bolts, for use where high yield load and stiffness are expected from the reinforce-ment system. When Atlas Copco bought MAI in 2001, the rock reinforcement center moved to Feistritz/Drau, Austria.

    Get Price
  • Atlas Copco Rock Reinforcement Products Product

    2016-10-20 · available with Swellex rock bolts has made them the best for solving most problems and one of the best in for Rock Reinforcement in general. Special application products From the well accepted Plastic coating for highly corrosive environments, Atlas Copco covers all demands for corro-sion protection and long life rock bolts. For special applica-

    Get Price
  • Secoroc Rock Drilling Tools SWELLEX ROCK BOLTS

    The acquisition of DYWIDAG-Systems International (DSI) by Triton is closed on June, 15 th, 2011. Triton, a highly respected European private equity house, is now the owner of DSI. DSI South Africa strengthens Export Activities in Botswana and Zimbabwe. DSI is one of the largest and leading producers of products and systems for mining in South ...

    Get Price
  • History - DSI EMEA - DYWIDAG-Systems

    2013-7-24 · FHWA also has manuals on anchorages and inspection. T H Hanna has written several papers and such on anchorages (see Ch 19 in 'Engineering in Rock Masses' edited by F. G. Bell, Butterworth-Heinemann, 1992)) See also Ch12 on Stabilization of Rock Slopes by Wyllie and Mah,'Rock Slope Engineering, Civil and Mining, 4th Ed. (Spon Press).

    Get Price
  • 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.

    Get Price
  • 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

    Get Price
  • Mine Rock, Cable & Specialty Bolts BC | DSI | SPS

    Mining products from Dywidag-Systems International (DSI) have long been regarded for their quality, ease of use, and longevity. SPS Mining Supplies Ltd. in Smithers is proud to supply quality DSI drilling fluids, mine rock, cable and specialty bolts to facilitate BC …

    Get Price
  • Mining | rocbolt

    Forged Head Replacement Bolts TDS Mineral Bond LV Mineral Bond LV _ Component B Mineral Bond LV _ Component A Self-Drilling Hollow Bar Anchor System DSI Pump Set - Multi Pump. Cable Anchors. CableLok Bolt ... Accessories. Accessories for Rock and Roof Bolts ...

    Get Price
  • t76l tunnelling and mining rock bolts

    In this study regarding rock bolt in tunnel construction, the effect of rock bolts and shotcrete method on the stability of a tunnel below the ground as well as with ... Inquire Now; Mechanical Rock Bolts DSI Underground Systems. DSI Underground Systems Inc. Mechanical Rock Bolts overview. Click to …

    Get Price
  • Self Drilling Rock Bolts

    2010-6-25 · Self Drilling Rock Bolts ROCK BOLTING RODS RBR32-2000 2000= Length 32 =R32 thread RBR=Rock Bolting Rods Parameter Rope thread R28 R32 O.D. mm 28 32 I.D. mm 16 18.5 Cross-sec. Area mm2 390 471 Material 45 40Cr 40Mn2 45 40Cr 40Mn2 Ultimate Load KN 210 Min. 245Min. 270Min. 260Min 300Min 340Min Yield Load KN 160Min. 185Min. 210Min. 190Min.

    Get Price
  • ROCK BOLTING SOLUTIONS. - Minova

    2020-11-24 · The demand for extended bolt life requires improved rock bolting technologies. One of the main limiting factors to bolt life is corrosion acting on steel elements. COATING PROTECTION FOR ROCK BOLTS We provide multiple coating solutions for a wide range of bolts that increase bolt lifespan while maintaining its performance.

    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
  • 14 factors associated with the installation of a rock

    2014-10-20 · The factors that affect the price of installation are as follows: The cost of the fixture or rock bolt. Other installation materials such as expander shell, cement, resin or silicate cartridge. As rock bolts are seldom installed without accessories, we have the cost of such items as washers, bearing plates, strapping, wire mesh and wooden blocks.

    Get Price
  • DSI Underground (APAC) | LinkedIn

    DSI Underground is one of Australia’s largest manufacturer and supplier of specialist strata reinforcement and support products to the soft and hard rock underground mining, and tunnelling ...

    Get Price
  • Rock Bolts - ARC Insulations

    2020-7-9 · ARC FRP rock bolt system offers a fully developed range of FRP rock bolts which are meant to support the modern extraction method. High tensile strength, easy handling under the most confined conditions; low weight and surface free of protruding and skin irritating glass fiber translate the same into one of the best products in the industry.

    Get Price
  • Mining | rocbolt

    Forged Head Replacement Bolts TDS Mineral Bond LV Mineral Bond LV _ Component B Mineral Bond LV _ Component A Self-Drilling Hollow Bar Anchor System DSI Pump Set - Multi Pump. Cable Anchors. CableLok Bolt ... Accessories. Accessories for Rock and Roof Bolts ...

    Get Price
  • Rock bolts, tunnel bolt, banana bolts, t head bolt,

    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
  • Practical Rock Engineering Chapter 14 Rockbolts and Cables

    Because of the high-quality properties of the steel we use (S355 MC) and the technology and automation of our production processes we guarantee the best quality and service. Currently we provide three types of expend rock bolts: STANDARD, MIDI and SUPER. The main difference between them are the thickness, diameter and breaking load.

    Get Price
  • Product - Emcor Underground - Rock Bolts

    2019-8-19 · Glue-ins are great. They can be used in any type of rock. Wedge-bolts (3/8' s.s.) are fine in competent rock, and can be removed. The holes can usually even be re-used without needing to drill up to 1/2'. 1/2' stainless steel bolts and 1/2' glue-ins will likely …

    Get Price
  • What is the best bolt for the long-term preservation

    2018-9-21 · strength of the rock mass so that it becomes self-supporting. Rock support generally combines the effects of reinforcement, by such elements as dowels, tensioned rock bolts and cables, and support, with shotcrete, mesh and steel sets which carry loads from individual rock blocks isolated by structural discontinuities or zones of loosened rock.

    Get Price
  • SUPPORT IN UNDERGROUND HARD ROCK MINES

    DSI Underground (APAC) | 2796 seguidores en LinkedIn. A leading Australian provider of Ground Support products and systems for the Underground Mining & Tunnelling industries | DSI Underground is one of Australia’s largest manufacturer and supplier of specialist strata reinforcement and support products to the soft and hard rock underground mining, and tunnelling sectors.

    Get Price
  • Rock bolt and anchoring - SlideShare

    2021-1-21 · Two experiments, with differing equipment setups, were used to test rock bolts, with differing structures and grouting qualities, using low frequency (20–200 kHz) and high frequency (700 kHz-3 MHz) guided waves to determine the effect of grouting quality on the propagating velocity of the guided waves. The results indicate that grouting quality has a significant effect on the velocity at ...

    Get Price
  • World's leading rock bolt manufacturer-Sinorock®

    R51 Rock Bolts suppliers. R51 Rock Bolts suppliers. Sinorock is a professional R51 rock bolts supplier which has the ISO9000 quality certification and CE certification. T30 Rock Anchor. T30 Rock Anchor. T30 rock anchor is suitable for granular soils and fills. This installation method utilizes a Grout Swivel, grout pump and drifter.

    Get Price
  • Rock Anchoring and Bolt Systems

    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

    Get Price
  • ROCK BOLTING SOLUTIONS. - Minova

    2020-11-24 · The demand for extended bolt life requires improved rock bolting technologies. One of the main limiting factors to bolt life is corrosion acting on steel elements. COATING PROTECTION FOR ROCK BOLTS We provide multiple coating solutions for a wide range of bolts that increase bolt lifespan while maintaining its performance.

    Get Price
  • Rock Bolt Anchor (Elements) in situ Pull Out Test 54 ...

    2021-1-22 · The rock bolts are pulled to design load to check the efficacy of the anchors installed to support the rock mass. Also, the anchors are installed and tested in rock mass to get data for their design as related to their yield. load, ultimate capacity, and requirement of bond lengths. The pull-out test is done until the anchor or the rock fails.

    Get Price
  • Roof Bolting Tools | Coal Age

    2014-11-26 · Dywidag Systems International - Mechanical Anchors and Rebar Rock Bolts (DSI, 2013) - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Dywidag Systems International - Mechanical Anchors and Rebar Rock Bolts (DSI, 2013)

    Get Price
  • Dywidag Systems International - Mechanical Anchors

    2019-8-19 · Glue-ins are great. They can be used in any type of rock. Wedge-bolts (3/8' s.s.) are fine in competent rock, and can be removed. The holes can usually even be re-used without needing to drill up to 1/2'. 1/2' stainless steel bolts and 1/2' glue-ins will likely …

    Get Price
  • What is Mining Equipment? - DSI Mining Products

    Polyester Resin Rock Anchor Systems. Resin anchoring provides quick rock reinforcement for active and passive installations for dams, locks, underground structures, rock cuts, and tie-downs. Both Williams Grade 75 and 150 KSI All-Thread Bars are used for resin …

    Get Price
  • What is the best bolt for the long-term preservation

    2013-7-24 · Hello. Can anyone recommend a good reference to design rock bolts to support locally weak spots in rocks slopes? I have calculated the factors of safety of the rock slopes using Rocscience Slide, which indicate Factors of Safety > 1.5.

    Get Price