subsurface mining types
subsurface mining types
Mining - Wikipedia
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Subsurface mining is the removal of deposits from the earth by drilling underneath layers of rock and dirt These deposits are difficult to reach from the surface and require the drilling of vertical or horizontal shafts for access The shafts are reinforced with supports before workers access the tunnels...

subsurface mining by jose saade on Prezi
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Surface mining | Britannica
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Surface mining, method of extracting minerals near the surface of the Earth The three most common types of surface mining are open-pit mining, strip mining, and quarrying See also mining and coal mining Bisbee: Lavender PitThe Lavender Pit, a former open-pit copper mine, Bisbee, ArizCornellrockey...

Chapter 16 Mining and Minerals Flashcards | Quizlet
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A type of subsurface mining where the excavation of a series of "rooms" into the mineral bed, leaving "pillars" or columns of coal to help support the mine roof The mineral is broken up by explosives, loaded onto a vehicle by a mechanized loading machine...

Mining Techniques | Geology for Investors
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These two broad categories encompass almost all mining techniques and will be discussed in detail As a general rule surface mining is more cost effective than subsurface mining The most common surface mining technique is open-pit mining (Figure 1), where a commodity is extracted via an open pit in the ground This is an extremely cost effect way of removing a resource because large quantities can be ,...

Surface mining - Wikipedia
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SUBSURFACE MINING Extraction of a metal ore or fuel resource such as coal from a deep underground deposit SMELTING Process in which a desired metal is separated from the other elements in an ore mineral , Type of mining in which chain buckets and draglines scrape up sand, gravel, and other surface deposits covered with water ....