Product

EMC ROCK BOLT. A Rock bolt is a steel rod used in tunnelling and underground mining. The tube has an omega shape and it is inserted in a hole drilled into the roof or walls of a rock formation to provide support to the roof or sides of the cavity. Once the rock bolt is inserted in the hole it is expandedusing a special pump and adapter which ...

Mining

Used extensively in both soft rock and hard-rock mining projects worldwide, our ground support products, including injection chemicals and resins, comply with all technical standards and cover every application – from shaft sinking and horizontal drift excavation through to shaft rehabilitation and emergency support. We also embrace new and ...

About us

Today, DSI Underground is global market leader in the development, production and supply of mining products and systems. Keeping in line with its strategy "Reinforcing Progress", DSI Underground has over 2,000 employees worldwide with operations across Europe, Africa, Asia-Pacific and the Americas. In Australia, the DSI Underground head office ...

About us

2018-5-25 · DSI Tunneling LLC. DSI Underground has over 2,000 employees worldwide with operations across EMEA (Europe, Middle East, Africa), Asia-Pacific, North America and South America. Currently, we satisfy the demand of our customers in 70 countries around the world. Our Underground activities in the Americas include manufacturing plants in Canada ...

rock bolt | mining | Britannica

2  · rock bolt, in tunneling and underground mining, steel rod inserted in a hole drilled into the roof or walls of a rock formation to provide support to the roof or sides of the cavity.Rock bolt reinforcement can be used in any excavation …

New rockbolting methods for reinforcing tunnels against ...

2021-11-1 · Tunnel deformation such as squeezing on sidewalls of the tunnel generally indicates that the ground around the tunnel is deteriorated or plasticized, meanwhile the ground away from the tunnel is in relatively good condition. 9 Fig. 1 shows a schematic diagram comparing the conventional rock bolt and the CIB-bolt. Download : Download high-res image (667KB)

Shandong Anbait Mining Machinery Manufacturing Co., …

Shandong Anbait Mining Machinery Manufacturing Co.,Ltd (hereinafter referred to as Anbait) is a specialist at research, production and sale of rock drilling and mining tools.Anbait Products range from tapered & threaded rock drilling tools, mining tools, DTH bits & hammers, TBM Cutters, anchor bolts, Mining carbide to coal mining tools.

Underground Dilling Rigs Overview

Tunnelling and Mining development. Making holes is part of our business. HPE supplies drilling rigs to conventional underground mines for horizontal tunnel development, incline tunnel development, ore pass development, vertical ventilation holes, silos and the drilling of drain holes and reef extracting holes (reefboring).

Geoform Canada | Tunnelling, Construction, Mining …

2020-11-11 · Geoform is a Canadian supplier of specialty products for the tunnelling, mining and construction industries. We supply underground equipment, rock support products, waterproofing systems, mine and tunnel fans and ducting, as well as mobile expandable containers/trailers.

Rock Bolt Anchoring

2021-12-15 · Mining & Tunneling; Rock Bolt Anchoring Rock Bolt Anchoring Fast-curing, thixotropic solution for improving rock bolting performance. Master Builders Solutions offers a range of anchoring solutions that facilitate safe ground stabilization while improving mine productivity and tunnel construction. Developed for grouting placement of cable and ...

Mining Supplies

Mining Supplies Get A Quote What We Do Ground Support Power Distribution Ore Movement & Processing What We Do Ground Support Power Distribution Ore Movement & Processing NISS Manufacturing When you need high-quality, innovative tooling and wear items to keep your productivity promises, count on our manufacturing to deliver when and where you need it.…

Underground Unit Cost Analysis

2007-8-14 · Tunnel Construction Costs (TBM) 9,000 Construction Cost ($/m) 8,0007,000 6,000 5,000 4,000 400 375 350 325 300 250 275 TBM Advance Rate (m/week) 3 4 56789 Nominal Tunnel Diameter (m) TBM Advance Rate Tunnel Construction Costs

Steel Combination Bolt | Immediate and Permanent Rock ...

2021-12-4 · Immediate and permanent rock bolting solution. GEOTEC™ Steel Combination Bolt is suitable for the most stringent requirements. A mechanical bolt combined with a corrugated pipe and a double grout layer all along tendon to provide both high bonding and protection against corrosion (similar to Double Corrosion Protection / DCP).

CT-Bolt™ Combination Rock Bolt

The CT-Bolt ™ is a unique combination rock bolt system. It offers the combined advantages of an immediate point anchorage and subsequently a fully grouted rock bolt. A two-step installation procedure allows fast installation and immediate anchorage, separate and independent grouting provides flexibility in regard to working cycles.

GROUND SUPPORT SOLUTIONS

2019-8-28 · leading manufacturer of products for rock bolting, strata support and ventilation ... Systems for mining, tunnelling and civil engineering. Our range includes steel and ... rock bolt hole. The sheath is retained in the pump and discarded after use.

Tunnelling: Today''s TBMs do it all

2020-7-10 · Swedish mining and rock technology manufacturer offers the DS512i rock bolter designed for 5m by 5m headings. Introduced late last year, says the rig was designed specifically for tunnelling and mining and was developed based on a modularised concept, leading to high levels of parts commonality with the DT922i to reduce ...

Principles of rockbolting design

2017-6-1 · 1. Introduction. Rockbolt is the most widely used support element in support systems in underground mines and civil tunnels. Rockbolting design is indeed mainly based on experience and it appears that rockbolting design is simply a business of selection of rockbolt types and the determination of bolt length and spacing, but, one essentially uses, either explicitly or implicitly, …

Tunnel Construction Products | Construction Materials

2  · Cut-able mining anchor. GEOTEC™ FRP Solid Rock Bolt is a rock-bolting system based on fully threaded GFRP tendon. It is especially designed for the following applications: Face-bolting and temporary applications: Cut-ability of FRP makes it the ideal solutions for face bolting or any other tunneling/mining application where further excavation ...

Shafts, Tunnels, Galleries, Large Underground Chambers

A rock bolt (100) having a longitudinal axis and to be encapsulated within a settable material in a bore hole (144), the bolt (100) including: an elongate bar (102) having a length longitudinally extending between a bar leading end porti...

Our Markets

Mining and Tunneling markets are regional markets. That is why our global presence is based on a decentralized corporate structure. Such local presence, combined with know-how that is available around the world, is the strength of the DSI Underground network.

What are Rock Bolts?

2021-12-11 · Rock bolts were a game changer for safety in the mining and excavation industries. These long trusted anchors have undergone continual advancements, are simple to install, cost effective, and work well to keep rock in place and people and equipment safe.

Rock bolting rigs | Epiroc

2021-12-15 · Rock bolting rigs. Epiroc''s rock bolting rigs are used for rock bolting in mining and tunneling applications. Our range includes models suitable for roof heights from 1.8 to 13 meters. Features include a screen handling arm for …

Mining | rocbolt

Tunnelling. Mining. Geotechnical. Resin Bolts. Suspension Bolts. Resins, Capsules and Grouts. Fasloc Resin Cartridges. ROCBOLT Anchor Resin. Pigtail Eye Bolt. Ground Consolidation. ... Accessories for Rock and Roof Bolts ...

Installation Quality Guidelines

Rock Bolt Dollies - Rock bolt installation dollies should only transfer rotational energy to the rock bolt during installation, not percussive energy, when stopers and jacklegs are used.The shank end of the dollie must be short enough to avoid …

Practical Rock Engineering Chapter 14 Rockbolts and …

2021-11-12 · 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.

Self Drilling Rock Bolts SDA Bolts Tunnel Mining Rock ...

2019-9-18 · Company Introduction: Established in 2015 to support the growing demand of our Rock Hardware Products with excellent customer service. Srons Engineers are the Indian manufacturers of Rock Bolts, Self-drilling anchor systems and Self Drilling Anchor Bolt parts like hollow bar & rod, threaded rods, tie rods, coil rods, anchor couplers, anchor adapters, anchor …

Mining & Tunneling |

Mining & Tunneling. Our range of injection systems is specifically designed for use in mining, tunnelling, civil engineering and foundation engineering. These include inflatable packers, hydraulic packers, borehole seals, clamping packers, ram injection lances, sheet pile packers etc. in various designs. Accessories and auxiliary equipment are ...

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2020-6-24 · EMCOR Underground is a leading mining and tunnelling support family-owned company based in Oviedo, Spain. Since the beginning our mission has been focused on manufacture high quality support products. Today we focus our activity on manufacturing rock bolts, our industry experience leads us to build the most technological and innovative rock bolt …

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