pretec rock bolts cost

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  • Pretec Group – Rock support – combination bolts with

    Presentation of combination bolts for download: PowerPoint or PDF. Installation video of PC-Bolt TM and NC-Bolt. For further information, please contact our sales team: Erik A. Karlsen, [email protected]c.no, +47 977 13 810 (UTC +1) Even A. Karlsen, [email protected], +47 908 45 246 (UTC +1) Tony Tang, [email protected], +86 139 6735 8765 (UTC +8)

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  • ChinaPretec SN Rock Bolt(id:9881459). Buy China SN

    Dýrafjardargöng, (Road tunnel) Westfjords, Iceland 2017-2020, Products supplied: NC-bolts and standard rebar bolts. All in Pc-coating. The tunnel will be 5.6 km long and will shorten the route of the Vestfjarðavegur by 26 km. The estimated cost of the tunnel is ISK 9.2 billion.

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  • Chinapretec Sn Rock Bolt - China Sn Bolt, Rock Bolt in

    Pretec China (Zhejiang Pretec Metal Products Co Ltd) moved to new factory, 10 000m2. Mechanical production of rock bolts and powder coating. Pretec started to work in the tunnel industry with rock bolts and products for water and frost proofing. 2009. Pretec China (Zhejiang Pretec Metal Products Co Ltd) was established in China, Haining ...

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  • Project References – Pretec Group - Rock support

    2019-9-5 · 4 NC-Bolt - combination bolt (rebar bolt) Technical information Dimension Tension area A S Thread-shank Yield stress Reh Tensile stress Rm Ductility Agt M20x2,5 245-314 N/mm2 Min. 500 N/mm2 Min. 600 N/mm2 Min. 8% M22x2,5 303-380 N/mm2 Min. 630 N/mm2 Min. 790 N/mm2 Min. 7,5% M33x3,5 694-804 N/mm2 Min. 500 N/mm2 Min. 600 N/mm2 Min. 8% Dimension Material1) Thread …

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  • Corporate – Pretec Group - Pretec Group – Rock support

    2018-12-11 · Rock bolt M20x3000 HDG 607 104203000 Round steel 4.8/500 for M20x4000 HDG 807 104204000 expansion shell M20x5500 HDG 1110 10420550 Thead: 2xM20x150 Threaded bolt 8.8 Pc-Coat M16x260 Pc-Coat 35 108160260 Bolts for PE-foam, ceiling-and M16x310 Pc-Coat 42 108160310 -wall element etc.

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  • NC-Bolt - Pretec

    Swellex Rock Bolts. Price:according to your drawings. Material::S275JR, S355MC, S355JR. Size:Pm12, Pm16, Pm24, Mn12, Mn. DESCRIPTION: Swellex expandable rock-bolting system has gained wide recognition in the mining and tunneling industry.

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  • Decisive pretec for Industrial Uses - Alibaba.com

    Avail offers on potent and conducive pretec for various uses such as cutting, spinning, shaping etc at Alibaba.com. Explore handy and useful pretec now.

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  • Productprogram - pretec.no

    2018-12-11 · Rock bolt M20x3000 HDG 607 104203000 Round steel 4.8/500 for M20x4000 HDG 807 104204000 expansion shell M20x5500 HDG 1110 10420550 Thead: 2xM20x150 Threaded bolt 8.8 Pc-Coat M16x260 Pc-Coat 35 108160260 Bolts for PE-foam, ceiling-and M16x310 Pc-Coat 42 108160310 -wall element etc.

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  • PC-Bolt M27 Combination Bolt/Rock

    2020-9-10 · 6 Rock bolts and rock dowels shall not be precut at the factory to lengths shown 7 in the Plans, but rather shall be delivered to the job site in bulk lengths and 8 field cut to the appropriate lengths. Each rock bolt and rock dowel shall be 9 fitted with a bearing plate, nut, and washers. Prior to placing rock bolts …

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  • (September 8, 2020) 2 Rock Bolt and Rock Dowel ...

    2018-9-21 · cost tends to limit their application to situations where high strength bolts are required. Tensioning of rockbolts is important to ensure that all of the components are in contact and that a positive force is applied to the rock. In the case of light 'safety' bolts, the

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  • Practical Rock Engineering Chapter 14 Rockbolts and

    Swellex rock bolts can be considered as a full column support as they provide reinforcement and support on the whole length of the borehole. Due to its unique anchorage mechanism, the Swellex bolt can adapt to a wide variety of ground conditions and provide good to excellent anchor age capacity in most rock …

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  • Swellex Rock Bolts, Swellex Bolts -ZongXiang

    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.

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  • 14 factors associated with the installation of a rock

    The Dynamic OMEGA-BOLT ® is an evolution of the DSI Underground OMEGA-BOLT ® a high pressure inflatable friction bolt, used to secure a great variety of ground conditions, subjected to different stress conditions. All OMEGA-BOLT ® systems are based on a steel tube, longitudinally formed in its typical omega (Ω) shape and made pressure tight by welded bushings on each end.

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  • Self Drilling Anchor Rock Bolts, Threaded Rods ...

    2018-11-19 · * For permanent applications, SRONS Hollow Rock Bolts can be hot dip galvanized according to EN-1461, epoxy coated or supplied with a sacrificial thickness if accounted for all design stage. Nominal Diameter Cross-section area Linear Weight Grade 525/575 Grade 835/1035 Grade 935/1085 mm (mm )2 (kg/m) Yield load (kN) Ultimate load

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  • PC-Bolt R27/12 Combination Bolt/Rock Support

    ZheJiang Pretec Metal Products Co.,Ltd - China supplier of rock bolt, combination bolt, anchor bolt, mining rock bolt

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  • ZheJiang Pretec Metal Products Co.,Ltd - rock bolt ...

    China PC-Bolt R27/15 Combination Bolt/Rock Support (G4), Find details about China Combination Bolt, Grouting Rock Bolt from PC-Bolt R27/15 Combination Bolt/Rock Support (G4) - Zhejiang Pretec Metal Products Co., Ltd

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  • Zhejiang Pretec Metal Products Co Ltd - The

    2018-12-11 · Pretec AS – www.pretec.no – Telefon: 69 10 24 60 Innhold kan endres uten forutgående beskjed. Rockfall protection mesh Rockfall protection mesh used as a system to prevent rockfall onto roads and railways. Is used together with rock bolts and other system elements to catch falling rocks from slopes and cuts and prevent falls onto roads

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  • China PC-Bolt R27/15 Combination Bolt/Rock Support

    2020-11-9 · Low Initial Cost Requires More Maintenance High Tensile Steel Mesh Rock Bolt Crest Bolts Rock Trap High Tensile Steel Mesh 5. Rock Bolts Basic Concept Rock Bolts are generally formed from solid threadbar systems, i e bar, nut, couplers and plates The steel threadbar ... Rock Bolts GEWI ...

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  • Steinsprangnett - Pretec

    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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  • Rock Bolts and Meshes - DYWIDAG

    2021-1-8 · cost effective solutions to meet the anticipated needs of designers and contractors. UCAN takes pride in the consistent high quality of its’ products as well as the in-depth knowledge and helpfulness of its’ sales staff. Timely Delivery UCAN keeps its Toronto warehouse well stocked with over 1,100 stock types and sizes of anchors and ...

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  • Rock Anchoring and Bolt Systems

    Shop Local. View local pricing and inventory as well as place orders online. Load More. CAT® COMMON UNDERCARRIAGE PARTS. We carry every part you could possibly need, whether you require a small track bolt, a track roller, or some other type of undercarriage replacement component. Available undercarriage track parts include:

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  • Price List 2020 - UCAN Fast

    2018-9-6 · page-index chapter sub-head page input basic rates (zero lead) 01-18 1 temporary items 19-28 2 earthwork 29-42 3 mortars 43-49 4 concrete work 50-70 5 rcc work 71-87 6 brick work 88-96 7 stone work 97-104 8 walling 105-108 9 wood work 109-149 10 steel work 150-158 11 flooring 159-196 12 roofing 197-230 13 finishing 231-275 14 repair of buildings 276-287 15 dismantling 288-302 16 miscellaneous ...

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  • ZheJiang Pretec Metal Products Co.,Ltd - rock bolt ...

    ZheJiang Pretec Metal Products Co.,Ltd - China supplier of rock bolt, combination bolt, anchor bolt, mining rock bolt

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  • Zhejiang Pretec Metal Products Co Ltd - The

    Pretec AS – www.pretec.no – Telefon: 69 10 24 60 Innhold kan endres uten forutgående beskjed. Rebar bolt Ø25/M24 Rock support bolt/ceiling bolt Rock support bolt. The end of the bolt is obliquely cut for improved polyester mixing. Can also be used fully embedded in polyester or cementitious mortar.

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  • Rebar bolt Ø25/M24 Rock support bolt/ceiling bolt -

    2021-7-5 · Rock bolts. Since its introduction 30 years ago the Swellex expandable rock-bolting system has gained wide recognition in the mining and tunneling industry. This unique rock bolt consists of a welded tube folded in upon itself, sealed at one end. It is re-expanded using a high pressure water flow provided by a special pump and adapter.

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  • Swellex Rock Bolting System | Rock Reinforcement |

    Rock Bolts – Solid Bar Product Code Prefix GB Product Code Guide Bolt Type Dia. Length Drive Nut & Accessories Coating Packaging GB 2 560 K5 Physi...

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  • GEWI - Rock Bolts - Roof Bolts - Resin Anchoring

    280kN 0.86Kg/M Self Drilling 28mm Rock Anchor Bolts For Slope Stabilization Weight 0.58Kg/M Internal Diameter 8mm H22 Hollow GFRP Rock Bolts Tensile Load 220kN 300kN Slope Stabilization Hollow 25mm GFRP Rock Bolts

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  • Quality Self Drilling Anchor Bar & Self Drilling Rock ...

    2018-11-19 · * For permanent applications, SRONS Hollow Rock Bolts can be hot dip galvanized according to EN-1461, epoxy coated or supplied with a sacrificial thickness if accounted for all design stage. Nominal Diameter Cross-section area Linear Weight Grade 525/575 Grade 835/1035 Grade 935/1085 mm (mm )2 (kg/m) Yield load (kN) Ultimate load

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  • TECHNICAL BAR SYSTEM - Self Drilling Anchor Rock Bolts ...

    All these tests were carried out on rock bolts and dome washer plates supplied by Dextra Pretec. Pull testing was carried out in accordance with British Standard (BS 7861.1:2007). It was found that the average strength of tested bolts was 32.5 t, elongation 14.5 %. The maximum dome plate deformation load was in the order of 275 kN.

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  • 'Performance of bolting systems in tension and the ...

    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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  • Rock Anchoring and Bolt Systems

    2015-4-14 · Rock class Condition of rock mass RQD Stability of face convergence B Rock is fresh and hard. Discontinuous planes are stable and the possibility of loosening due to tunnel excavation is very small. 60 to 90 The strength is significantly higher than the expected load and only occasional local spalling of rock fragment may occur.

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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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  • Bolts · SAE Grade 8 Hex Head Bolts-Matching Washers

    Our bolts and matching hardened washers and nuts form a matched system that produces consistently high clamp loads. You can trust Cat Hardware and Fasteners to help you build it, maintain it, or fix it – for most machine and workshop applications throughout the …

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  • Swellex Rock Bolting System | Rock Reinforcement |

    2021-7-5 · Rock bolts. Since its introduction 30 years ago the Swellex expandable rock-bolting system has gained wide recognition in the mining and tunneling industry. This unique rock bolt consists of a welded tube folded in upon itself, sealed at one end. It is re-expanded using a high pressure water flow provided by a special pump and adapter.

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  • Anchor Bolt Philippines - 7TMW INC

    2021-7-2 · 7TMW Inc is one of the most trusted manufacturer of Anchor Bolt, Steel Fastener Bolt, Base Plate, Hexagonal Nut, Chemical Bolt, Chemical Epoxy, Machine Bolt and other steel product in the Philippines. With almost 50 years of expertise, We are the number one choice of contractors and engineers around the philippines.

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  • Annex 13 Case study on tunnels - Europa

    2018-8-8 · The cost of tunnels have been identify to range between 25 M€/km and €30 M€/km on average. While this range reflects the average values of the sample, it does not prevent values to reach over 80 M€/km, as ... concrete segments placed by TBMs or certain rock bolts.

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  • Bultförstärkning av berg vid konventionell tunneldrivning

    2018-6-20 · tunneling with rock reinforcement occurred. The assembly of the two bolts has been compared out of a load ergonomic view point. In order to investigate differences in work volume and time, calculations were made on a compiled bolt protocol. The calculations show which reinforcement bolt results in the lowest cost of the assembly.

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  • DYWIDAG Geotechnical Product Range

    2020-9-24 · 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

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  • AMERICAS

    The setting time of the resin components can be controlled. A combination of fast- and slow- setting cartridges and differing insertion strengths makes possible the simultaneous operation of anchoring, grouting and tensioning of rock bolts. The simplicity of this method of anchoring/grouting eliminates the need for cumbersome injection equipment.

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  • Grout Sock - DYWIDAG-Systems International UK

    Grout socks are utilised in heavily fissured or fragmented rock. Rock bolts rely on the confinement of grout within a borehole in order to transfer the strength from the steel threadbar into the rock. If fissures prevent the borehole from containing the grout, then the bar can be covered with a grout sock prior to placement in the hole.

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  • GEWI - Rock Bolts - Roof Bolts - Resin Anchoring

    Rock Bolts – Solid Bar Product Code Prefix GB Product Code Guide Bolt Type Dia. Length Drive Nut & Accessories Coating Packaging GB 2 560 K5 Physi...

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  • Polyester Resin Rock Anchors – Williams Form

    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 …

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  • Eye Bolt - 16mm - DSI Underground Australia - Rock

    6. 050. K5. Key Features. 16mm Eye Bolts are available for hanging of light services in mining applications. Available with a rolled thread M16 x 150mm long to accept 16mm expansion shell mechanical anchors. Note: The slotted option as per 24mm Eye Bolts is not available for 16mm Eye Bolts. Inside diameter of eye is 75mm.

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  • » 90° Anchor Bolt

    Self-Drilling Anchor Bolts. Self Drilling Anchor Bolts are a bolting solution for unstable ground conditions such as sand, gravel, silt, and clays, and in soft to medium fractured rock formations. For projects facing such ground conditions, self-drilling anchors should be considered as the main productivity solution.

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  • Self Drilling Anchor Bolts Is Our Solution for Unstable ...

    PRODUCTS. Our Tuf-Bar Fiberglass products, rebar, rock bolts, and form ties are designed to protect concrete structures against corrosive agents like de-icing chlorides, chemicals, and electromagnetic fields. A complete protection against environmental factors and corrosive agents is what makes our products a perfect solution to corrosion.

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  • Buyer's Guide - The Tunnelling Journal

    ZheJiang Pretec Metal Products Co.,Ltd(Pretec China) was established in June 2010. We sell products for construction and infrastructure industry. China is the production factory of Group .Pretec operates Finland, Norway, Sweden Finland. We specialize in: Rock support Frost ...

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  • Fiberglass Products | Rebar, Anchors, Rock Bolts, Form

    2015-4-14 · Rock class Condition of rock mass RQD Stability of face convergence B Rock is fresh and hard. Discontinuous planes are stable and the possibility of loosening due to tunnel excavation is very small. 60 to 90 The strength is significantly higher than the expected load and only occasional local spalling of rock fragment may occur.

    Get Price