mining drift underground

Development Drill Rigs & Mining Jumbos for Optimal ...

DD421 is a two-boom, electro-hydraulic mining development drill rig engineered for fast and accurate drilling in drifting and tunneling of 8-60-square-meter cross sections. This mining jumbo offers an improved hydraulic control system with new features that …

underground mining drift

A drift (or access) is an excavated tunnel built for the purpose of providing a pathway for the transit of equipment, services or ore between different locations in an underground mine. Installing Rock Bolts and Screen at Rio Tinto Diavik, 2014, Lac de Gras, NT, Canada.get price

The Drift: NORCAT Underground Centre opens its doors to ...

 · The Drift features profiles on the people, companies and institutions making important contributions to Greater Sudbury''s mining sector. From exploration, operation and remediation to research and innovation, this series covers the breadth of mining-related expertise that was born out of one of the world''s richest mining camps and is now ...

Major Mines & Projects | Pete Bajo Mine

Summary: The Carlin Complex has three major operating underground mines including Goldstrike underground, Leeville and the Portal Mines (including Pete Bajo and Exodus/Northwest Exodus). All mines utilize drift and fill and/or long-hole stoping and are accessed by shaft or portals. The mining methods used at Pete Bajo are primarily longhole ...

Drifts/Inclined Shafts | Introduction | underground COAL

Drifts/Inclined Shafts. The angle at which a drift becomes an inclined shaft is somewhat subjective, but there is some agreement that anything above 30 o to the horizontal is a shaft, not a drift.. A major advantage of drift or inclined shaft access versus vertical shaft access is the ability to move large volumes of equipment, materials and personnel in a properly designed and equipped drift ...

Glossary of Mining Terms

Drift mine – An underground coal mine in which the entry or access is above water level and generally on the slope of a hill, driven horizontally into a coal seam. Drill - A machine utilizing rotation, percussion (hammering), or a combination of both to make holes. If the hole is much over 0.4m in diameter, the machine is called a borer.

Towards underground mine drift mapping with RFID ...

Towards underground mine drift mapping with RFID. Despite a proliferation of research in the area of mapping in the mobile robotics community, the practical realization of a truly useful and low-cost mapping technology for drift networks in underground mining has yet to become available. To this end, this paper presents recent industry-directed ...

Drift Scope Laser

The NEW Drift Scope Laser Simplifying Surveying and Mining Tunnel Alignment. The Drift Scope Laser (pat.pend) was developed in 2002, to provide surveyors, miners and tunnel workers with a fast, easy to use and lightweight tool that sets up the alignment of the next drill development round.. It has a proven history of improving the speed and accuracy of shooting lines for tunnel advancement ...

Driftrunner

Impact Mining Equipment has, since 2007 become a leading provider of equipment hire, parts and consumables to the underground black coal industry in Australia. Our focus has, and continues to be, on providing products and services of the highest quality in the shortest possible response time-frame.

Top ten mining terms you should know

 · Top Ten Mining Terms. 10. Bench: floor or ground anywhere underground. 9. Back: the roof anywhere underground. 8. Drift: what you would call a tunnel. 7. Ramp: drift …

Drift mining

DRIFT is a program to design perimeter control blast rounds for typical underground drifting applications. The design utilizes current methods of perimeter blasting with the added design element of a buffer row coordinated with the perimeter row to reduce perimeter damage. The coordination is in applying one of several blast damage models to ...

A New Perimeter Control Blast Design Concept for ...

Drift driving is an important part of bringing metal/nonmetal mines into operation. Drifting provides access to an orebody for openings such as main haulage ways, main levels, ramps, crosscuts, sublevels, etc. The width, height, cross-sectional shape, and length of a drift depend on the use of the various mine …

Coal Mining, Kentucky Geological Survey, University of ...

 · There were 264 active underground mines and 240 active surface mines in Kentucky in 2000. Underground Mining. Underground modes of access include drift, slope, and shaft mining, and actual mining methods include longwall and room and pillar mining. Drift mines enter horizontally into the side of a hill and mine the coal within the hill.

Major Mines & Projects | Nevada Gold Mines Mine

Rodeo is a trackless operation, using two different underground mining methods: long-hole open stoping and drift-and-fill. Cortez The Cortez Mine consists of an operating open pit and underground mine with production from several open pit deposits and one underground mine.

Excavation Methods

Excavation methods for drifts are likely to be the same whether straight or with a change of direction. There are 3 methods which have been used: Conventional drill, blast and muck-out. There would be variations in equipment used, often from contractors'' preference or equipment availability, and also dependent on the grades involved, but the ...

Glossary of Hardrock Mining Terms

Diggers - The clothes a miner wears underground. Double-jack - 12 lb. sledge hammer. Drift - A horizontal tunnel driven along the mineral vein. Dry - The shower house for miners. Dry clothes are left there and diggers put on. Face - The end of the drift, crosscut, or tunnel, generally where the …

Underground hard-rock mining

Underground hard-rock mining refers to various underground mining techniques used to excavate "hard" minerals, usually those containing metals, such as ore containing gold, silver, iron, copper, zinc, nickel, tin, and lead also involves the same techniques used to excavate ores of gems, such as diamonds and rubies. Soft-rock mining refers to the excavation of softer minerals, such as salt ...

Underground Mining Drift

Diamond Drift - The Underground Miners Website. Diamond Drift. The first thing the Underground Miners noticed When entering the mine was the steel reinforced top where the drift travels under the railroad tracks above.

Timber Support in Underground Mining

 · READ PART 1 of Timber Support in Underground Mining. It is important to remember that only three pieces of the set are used to describe a square-set or express its efficiency or economy. For example, the boardfeet of lumber in a set refers only to one each of a cap, post, and girt. ... Loaded drift …

(PDF) Underground mining Methods

orebody configuration thr ough underground drilling. 1) Longwall mining. 2) Room-and-pillar mining. 3) Blast mining. 4) Shortwall mining. 5) Coal Skimming. perform an economic evalua tion of the ...

Underground Mining Methods

Underground Mining Methods and Applications Production Headframe Hans Hamrin* 1.1 INTRODUCTION Ore is an economic concept. It is defined as a concentration of minerals that can be exploited and turned into a saleable product to generate a financially acceptable profit under existing economic conditions. The definition of ore calls for ...

DriftRunner – VLI

VLI''s Driftrunner is a range of explosion protected (AS3584.2), diesel engine system powered vehicles, designed for personnel and material transportation in the underground coal environment.. The Driftrunner range has been designed to operate comfortably at peak performance within the challenging conditions of underground coal mining and sets the benchmark for reliability, versatility and ...

Glossary of Mining Terminology

Draegermen - A mine worker or official, engaged in mine rescue while wearing a self-contained breathing apparatus. Drift - The passage through which air is drawn into the mine. Drill - Any tool used for boring holes underground. Drive – To excavate a passage. Driver - A workman, usually a boy, who drives an underground work horse.

Tunneling Slopes in Underground Mining | Axora

Tunneling Slopes in Underground Mining. Slope mining is an underground mining method used to access coal or ore deposits by tunneling downwards at an incline. By comparison, shaft mines are dug vertically, while drift mines use horizontal tunnels. The coal is also closer to the surface in slope mines. Underground mining trucks and loaders are ...

mining

mining - mining - Horizontal openings: drifts: All horizontal or subhorizontal development openings made in a mine have the generic name of drift. These are simply tunnels made in the rock, with a size and shape depending on their use—for example, haulage, ventilation, or exploration. A drift running parallel to the ore body and lying in the footwall is called a footwall drift, and drifts ...

Drift Mining Ore Deposits | Axora

Drift Mining Ore Deposits. In an underground mine, drift mining is used to access ore deposits. This involves cutting horizontal and subhorizontal development openings, called drifts, into the side of the earth, instead of digging vertical tunnels. Drift mining is …

Modern mining: Tech freshmen ''drift'' in to underground lab ...

The classroom is actually a 1,500-foot long tunnel (or "drift" in mining jargon) in which students will learn the basics of underground mining. About half a dozen students geared up in ...

Glossary of Mining Terms

Drawpoint - An underground opening at the bottom of a stope through which broken ore from the stope is extracted. Drift - A horizontal underground opening that follows along the length of a vein or rock formation as opposed to a crosscut which crosses the rock formation.

Underground mining – block caving, bore hole, drift fill ...

Drift Mining. Drift mining is a process of accessing precious geological material, like coal, by cutting into the side of the earth, rather than tunneling directly downwards. Drift mines have flat entries into the coal seam from a hillside. Drift mines are different from slope mines, which have a tending opening from the surface to the coal vein.