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    Coal mining - Coal mining - Choosing a mining method: The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many technological, economic ...

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    In 1979-1980 the Oklahoma Conservation Commission made an inventory of all abandoned coal mine lands in the state. Sites were evaluated based on the danger to public health and safety. It is the Conservation Commission''s responsibility, in accordance with the Surface Mining .

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    Aug 24, 2010· Mining equipments such as draglines, dredgers or bucket wheel excavators, trucks and shovels, and dozers are the main equipments employed for overburden removal and coal extraction. The choice of equipment for a particular mine depends on geological, geotechnical and economic factors and other site issues.

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    Most mining is carried out using; Continuous mining that employs a continuous mining mechanism to cut the coal deposits from the walls. This means there is less of blasting and drilling and utilizes fewer miners down in the mines. It is safer than the yester year techniques of mining that is being described on our coal mine tour page.

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