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Auger mining, method for recovering coal by boring into a coal seam at the base of strata exposed by excavation. Normally one of the lowest-cost techniques of mining, it is limited to horizontal or slightly pitched seams that have been exposed by geologic erosion.Augering is usually associated with contour strip-mining, recovering coal for a limited depth beyond the point where stripping
Definition of auger mining. A mining method often used by strip-mine operators where the overburden is too thick to be removed economically. Large-diameter, spaced holes are drilled up to 200 ft (61 m) into the coalbed by an auger. Like a bit used for boring holes in wood, this consists of a cutting head with screwlike extensions.
auger meaning: 1. a tool consisting of a twisted rod of metal attached to a handle, used for making large holes in. Learn more.
Auger definition is any of various tools or devices with a helical shaft or part that are used for boring holes (as in wood, soil, or ice) or moving loose material (such as snow). Did You Know?
Auger definition at Dictionary, a free online dictionary with pronunciation, synonyms and translation. Look it up now!
Define auger. auger synonyms, auger pronunciation, auger translation, English dictionary definition of auger. a tool used to bore holes, as in ice or wood; a large tool for boring into the earth Not to be confused with: augur a prophet; soothsayer; to prophesy; to...
The following information 1 explains in more detail what distinguishes the different drilling rigs from each other.. Auger Drilling. Auger drilling is done with a helical screw which is driven into the ground with rotation; the earth is lifted up the borehole by the blade of the screw.
Auger mining operations drill a series of parallel holes perpendicular to the highwall, leaving adequately sized pillars between holes to maintain the stability of the highwall and overlying surface area. The technique is also commonly used to recover coal beneath surface features which limit surface mining, such as rivers and roads.
A new underground auger mining system by I.L. Follington*, R. Deeter†, D. Share†, and C. Moolman‡ Synopsis This paper describes the research and development programme to develop a prototype underground auger mining system aimed at developing and demonstrating an underground auger mining system able to provide economic access to thinner
Auger mining is a surface mining techniq ue used to recover additional coal from a seam located behind a highwall produced either by stripping or open-pit mining.
auger mining.-- A method often associated with contour strip mining to recover additional coal after the overburden to coal ratio has become too great for further contour mining. Coal is produced by boring into the coal bed much like a carpenter's wood bit bores into wood. An auger consists of a cutting head and screw-like extensions. bed
Auger mining systems have been gradually improved over the last 50 years and according to Salem Tool auger mining remains one of the lowest cost systems of coal recovery, showing some of the highest industry man-hour production.
(2) "Auger mining" means the method of recovering coal by boring with an auger into a coal bed prepared by strip-mining excavations or in naturally sloping terrain. Auger mining is used when the ratio of overburden to coal does not allow the economical recovery of coal. (3) "Broker" means any person who resells Montana coal.
Highwall mining is another surface mining form that has evolved from auger mining. A continuous miner driven by a hydraulic Pushbeam Transfer Mechanism (PTM) penetrates the coal seam. A typical cycle includes sumping (launch-pushing forward) and shearing (cutterhead boom raising and lowering to cut the entire height of the coal seam).
Auger Mining: Term. What are six factors that affect the productivity of a mine or the percentage of available coal that can be recovered? Definition. 1. Thickness and structure of the coal bed. 2. The depth of the overburden 3. The characteristics of the strata above 4. The dip (slope) of the coal bed
Auger mining is a surface mining techniq ue used to recover additional coal from a seam located behind a highwall produced either by stripping or open-pit mining.
Surface coal mining in the steep terrain of the central Appalachian coalfields includes: mountaintop removal, contour, area, highwall, and; auger mining. Operations are concentrated in: eastern Kentucky, southern West Virginia, western Virginia, eastern Ohio, and; scattered areas of eastern Tennessee. Surface coal mining involves:
The Glossary of Mining Terminology is a first attempt to improve Inuktitut terminology in the resource development field. The aim of the glossary is to clarify some technical words associated with resource development using everyday language. The Glossary of Mining Terminology is a living document that will continue to be improved as the industry develops and Inuktitut speakers become more
