Underground Mine definition of Underground Mine in the Free Online Encyclopedia.

Mine, Underground

(in Russian, shakhta), a mining enterprise that extracts minerals by underground methods and ships them to a consumer or an ore-enrichment plant. An underground mine includes both surface structures—for example, headframes, headhouses, and storehouses—and all the underground mining excavations that are used to work a deposit within a mine area. Such a mine is a mechanized and automated enterprise equipped with efficient machinery and devices for the extraction and hauling of minerals, for the sinking of mining excavations, for the removal of mine water, and for ventilation. Underground mines that work large deposits have lives of 50–70 or more years.

The largest underground coal mine in the USSR is the Raspadskaia Mine, which is in the Kuznetsk Coal Basin and has a projected eventual output of more than 7 million tons a year. The largest underground iron mine in the USSR is the Gigant Mine, which is in Krivoi Rog and has a projected eventual output of 12 million tons a year. The deepest underground mine in the USSR is the Academician A. A. Skochinskii Mine, which is in the Donets Coal Basin and is 1.2 km deep.

The deepest underground mines in the world are gold, silver, and diamond mines; they are 4–4.5 km deep. They include the Champion Reef gold mines in India and the Witwatersrand gold mines in the Republic of South Africa.

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No references found	There has been a preference for open-cast pits over underground mines since the majority of proven reserves were at depths of less than 300 metre. We are likely to run out of coal reserves by 2040-41 by Infrastructure Today The company says ActiveMine will make it possible to offer Intelligent Endpoints to underground mines over a single wireless Wi-Fi network that also provides voice, tracking and other data. Active Control Technology signs deal with 3D-P by Stockhouse Editorial Staff / Stockhouse Total raw material production from underground mines is 12 Mt/y. Future of oil shale mining technology in Estonia by Karu, V.; Vastrik, A.; Anepaio, A.; Vaizene, V.; Adamson, A.; Valgma, I. / Oil Shale	underfill underfit stream underfloor underfloor conduit system underfloor heating underfloor raceway underflow underflow conduit undergird underglaze decoration undergraduate underground Underground Borer Underground Brine underground burst underground coal mining underground construction underground distribution system Underground Fire underground gasification underground geology underground glory-hole method underground ice Underground Leaching underground milling Underground Mine Underground Mine Construction Underground Mine Warfare Underground Mining underground piping Underground Press Underground Presses of the Russian Social Democratic Labor Party Underground Radio Communication Underground Railroad underground service Underground Solution underground stem underground stream underground structure Underground Structures Underground Work, Legal Regulation of Undergrowth underhand stoping underhand work underhead crack Underhill State Park Underhill, John underhole underhung crane underlap underlay	Underground Gas Storage underground gasification underground geology underground glory-hole method Underground Gold Miners Museum Underground Government Liberation Intergroup Underground Groove Front Underground Groovement Underground hip hop Underground Hip Hop Association underground ice Underground Infrastructure Management Underground Injection Underground Injection Control Underground Injection Control Act Underground insurance Underground Kingz Underground Leaching Underground Legion of Terroristic Research Activists Underground market Underground market Underground market Underground Markets Underground Markets Underground Markets Underground Martyr Records Underground Miata Network underground milling Underground Mine Underground Mine Construction Underground Mine Fire Underground Mine Warfare Underground mining Underground Mining Permit Application Underground Music Movement Underground Natural Gas Storage Facility Underground newspaper Underground newspaper Underground newspapers Underground newspapers Underground Nuclear Explosion Underground nuclear test Underground Online Underground paper Underground paper Underground Petroleum Storage System underground piping underground press underground press Underground Press Syndicate Underground Presses of the Russian Social Democratic Labor Party Underground Printing Underground Products Underground Race League Underground Racerz Underground Radio Communication Underground Railroad Underground Railroad Underground Railroad

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There has been a preference for open-cast pits over underground mines since the majority of proven reserves were at depths of less than 300 metre.

We are likely to run out of coal reserves by 2040-41 by Infrastructure Today

The company says ActiveMine will make it possible to offer Intelligent Endpoints to underground mines over a single wireless Wi-Fi network that also provides voice, tracking and other data.

Active Control Technology signs deal with 3D-P by Stockhouse Editorial Staff / Stockhouse

Total raw material production from underground mines is 12 Mt/y.

Future of oil shale mining technology in Estonia by Karu, V.; Vastrik, A.; Anepaio, A.; Vaizene, V.; Adamson, A.; Valgma, I. / Oil Shale

underfill

underfit stream

underfloor

underfloor conduit system