auger mining definition
Auger mining Surface Mining, Strip Mining
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
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7.3.3: Auger Mining GEOG 000 - John A. Dutton e-Education
2013年7月3日 In auger mining, auger holes are bored horizontally into the coal seam from the last contour cut at the high wall. As the auger rotates and advances forward,
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Definition of auger mining - mindat
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
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What is Auger Mining? - GeologyHub
Auger mining is a surface mining technique used to recover additional coal from a seam located behind a highwall produced either by excavation or previously mined
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Auger mining Definition Law Insider
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
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Definition: Auger mining from 30 CFR § 701.5 LII / Legal
Auger mining means a method of mining coal at a cliff or highwall by drilling holes into an exposed coal seam from the highwall and transporting the coal along an auger
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Surface mining - Wikipedia
Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast
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Highwall mining Britannica
surface coal mining. In coal mining: Auger mining. Highwall mining is an adaptation of auger mining. Instead of an auger hole, an entry into the coal seam is made by a
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Coal mining - Underground, Surface, Drilling
Auger mining is usually associated with contour strip mining. With this method, the coal is removed by drilling auger holes from the last contour cut and extracting it in the same manner that shavings are produced by a
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