Tunneling - DSI Underground Group

Camber Corporation specializes in Construction Products, Mine and Tunnel Services, Overcast Systems, Steel Fabrication, Oilers and more.

Mine and Tunnel Roof Support Systems - Camber Group

This gives mine operations various options for safe underground mining support systems. Reinforcement for mine walls and roofs works on a basic principle — to build support systems for mobilizing and conserving inherent strength already energized in the rock's mass. The idea is to take remaining rock structures in mines and make them self ...

BULLFLEX System - DSI Tunneling

Mining Products for underground support systems ELBROC Mining Products (Pty) Ltd is a recognized leading manufacturer and supplier of In-Stope Roof Support Products to the Mining Industry. This Gauteng based ISO 9001 facility provides patented propriety products with capabilities covering design, development, machining, fabrication, assembly ...

Design of Tunnel Support Systems

Yielding support system – displacement minimization Re-establishment of the load-bearing capacity and yielding ability of destructed tunnel linings Foundation and prestressing of pipe umbrella support or rib support systems Roadway Packs and Dams Multiple entry roadways, gaseous seams, and deep mining operations Structural Bulkheads Sealing ...

SUPPORT IN UNDERGROUND HARD ROCK MINES

Underground Applications: Mining Roof and Wall Support. Tensar ® Mining Systems address underground mine and tunnel applications including: . Rib Control – White and reflective, Tensar ® TX and BX Mining Grid products provide effective rib control for soft minerals, while Tensar ® UX3340 Roof Mats and Minex™ Rock Mesh address the most demanding hard rock and tunneling applications.

Comparison of Two Excavation Support Systems in Clay ...

Project entitled, "Safe Application of Mine Roadway Support Systems". This was a three year Project which was completed in December 2002. This Project was part of a larger European Coal and Steel Community funded RTD Project No. 7220-PR 058, entitled "Improved Support Systems for Highly Stressed Roadways".

Steel arch supports for tunnelling | Maccaferri Corporate

Published inUnderground Support Systems. Edited by J. Udd. (Montreal; Canadian Institute of Mining and Metallurgy). Special Volume 35, 1987, pages 1-6. Support in Hard rock Underground Mines 2 Introduction Rock support is the term widely used to describe the procedures and materials used to

Fabricated Steel, Mine Tunnel Roof Support, Overcast ...

As a complete and proven system supplier, our solutions cover both excavation and ground support systems including self-drilling products, the innovative AT – Pipe Umbrella System and injection chemicals. Supported by a dedicated team of tunneling engineers, we can solve every application challenge, whatever the ground conditions.

Introduction Tunnel Basics - Mining and Blasting

Roof bolting systems in operation. When tunnelling with open tunnel boring machines in hard rock, early rock support is a top priority. Not only the machine personnel, but also the machine itself is protected by fast and reliable rock support.

Mine Timbering Methods - Underground Miners

Rock mass classification systems constitute an integral part of empirical mine design. The use of such systems can be either implicit or explicit. They are traditionally used to group areas of similar geomechanical characteristics, to provide guidelines of stability performance and to select appropriate support. In more recent years ...

Rock Reinforcement Options in Underground Mines | T.M.I

Jan 05, 1993· A mine tunnel support system in accordance with one aspect of the invention comprises at least, three spaced, interconnected support sections, each section including at least one bearing member which, when the section is in a first, loaded state, bears against the roof of the tunnel and, when the section is in a second, released state, is moved ...

Home - MIRARCO Mining Innovation

Mine and Tunnel Roof Support Systems: Sliding Arched Canopy ... where severe conditions are anticipated or to maintain critical areas of a mine or tunnel where roof bolting or cribbing is not sufficient or practical. Used in conjunction with Camber Lagging systems…

Underground Mining Solutions - DSI Underground Group

measurements, changes in support and construction method are possible. This is possible only if the contractual system enables those changes. Rock mass classification determines support measures - There are several main rock classes for tunnels and corresponding support systems for each. These serve as the guidelines for tunnel reinforcement.

Rock Mass Characterization for Underground Hard Rock …

Information Affecting Mine Tunnel Design and Performance • Depth of Cover • Tunnel Size (Min 7 ft, ... Tunnel Support • Ribs and Lagging • Timber • Rock Bolts/Dowels • Shotcrete • Straps • Mesh ... • Affects Support Systems and Water Management . Mine Map . Shotcrete Supported Portal . Resupported Tunnel .

drklug

1.,.o types of excavation support system were used on the suulhern approach of the Ted Williams Tunnel; part of Boston's Central Artery/Tunnel Project. Construction commenced in 1992 and v.ras completed in llJ95. The cut and cover tunn!.!l '>Vas . constructed to accommod

Coal mine roadway support system handbook

Conveyor systems provide an efficient, reliable, cost-effective and lower-risk method of removing muck and spoil from tunnelling excavation sites. Since the late 1980s, when the benefits of using conveyor systems in tunnelling projects first became apparent, we have been a worldwide leader in the manufacture and sale of conveyors designed and ...

Rock Excavation and Support Systems

Our patented B.Zero Tondo™ Tunnel Support System is a new solution in tunnelling and provides extremely efficient first stage support. It has been developed to respond to the market demands for a cost-efficient and safe alternative to traditional tunnel steel arches.

Tunnelling equipment - Underground mining - United Kingdom ...

South African Mining & Engineering Supplies has been in operation since 1994, is a medium sized expanding company. Specialising in the Research and Development of Tunnel Guard and Minecrete S3 Super Strong Shotcrete for underground support. We specialise in high strength ventilation walls.

Tunnelling equipment - Underground mining - United Kingdom ...

Published inUnderground Support Systems. Edited by J. Udd. (Montreal; Canadian Institute of Mining and Metallurgy). Special Volume 35, 1987, pages 1-6. Support in Hard rock Underground Mines 2 Introduction Rock support is the term widely used to describe the procedures and materials used to

Underground Mining Support, Underground Wall Supports ...

Conveyor systems provide an efficient, reliable, cost-effective and lower-risk method of removing muck and spoil from tunnelling excavation sites. Since the late 1980s, when the benefits of using conveyor systems in tunnelling projects first became apparent, we have been a worldwide leader in the manufacture and sale of conveyors designed and ...

Mine Support Products - Mining Technology | Mining News ...

Building upon work funded through the Ultra Deep Mining Network, MIRARCO commissioned CW Manufacturing of Acheson, Alberta, a major oilfield equipment provider, to build a high pressure, high flow, diesel powered pump capable of easy transport to and within mines. The system, pictured in the accompanying photo is currently undergoing field trials.

SA-Mining | South African Mining and Engineering Supplies

Mine Timbering Methods. Pressure on Mine Timbers. When coal is removed from a seam, the rock strata immediately over the mined area becomes unstable due to the withdrawal of support and is eventually filled with cracks and openings. These openings vary in …