Surface Strip Coal Mining Handbook Compiled By RJ Thompson 2005 . Introduction This handbook on surface strip coal mining serves as a general introduction to the subject of mining, specifically surface strip coal mining. It is intended as handbook for engineers who are
Surface mining definition of Surface mining by . strip mine n. An open mine, especially a coal mine, whose seams or outcrops run close to ground level and are exposed by the removal of topsoil and overburden. strip ...
(A) activities conducted on the surface of land in connection with a surface coal mine or subject to the requirements of Section incidental to an underground coal mine, including excavation for the purpose of obtaining coal, including such common methods as contour, strip, auger, mountaintop removal, box cut, open pit, and area mining ...
Coal Mining and Production ... Strip mining is one of the most economical surface processes. Here removal of ... (tons per 1,000 tons coal produced) Surface mining Underground mining Waste characteristic Contour Area Conventional Longwall Liquid effluents 1 Solid waste 10 10 3 5
To mine the ore. hoisting may complicate moving stones. cannot easily change the mining plan at depth Mechanisation is limited by the nature of the method Complicated and costly rock breakage method because of inability to use the maximum power of explosives Waste can be 60% to 90% Strip Mining Strip mining is a kind of surface mining ...
Part of the mining operation at the Thunder Ridge surface mine in Leslie County, Kentucky in 2008. (Photo: CJ files/Arza Barnett) Coal production from mountaintop removal mining has fallen 62 ...
Glossary of Mining Terms ... Cast A directed throw; in stripmining, the overburden is cast from the coal to the previously mined area. ... Highwall – The unexcavated face of exposed overburden and coal in a surface mine or in a face or bank on the uphill side of a contour mine excavation.
Restoration no fix for mountains destroyed by coal mining Federal law requires mining companies to restore strip mines to their original condition, but many don't bother.
Aug 30, 2018· Strip mining is a type of surface mining done in order to access buried deposits of useful minerals. Strip mining is often done to mine coal. View slideshow of images above
Contourmining. The Contour or Bench method of surface or strip mining is usually associated with coal, where a seam or multiple seams are located at a certain elevation or elevations through a .
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An obscene amount of land has been destroyed by strip mining VS. Strip mining of coal is cheaper and quicker than all other methods inthe US.
coal mining Contour strip mining Contour mining is commonly practiced where a coal seam outcrops in rolling or hilly terrain. Basically, the method consists of removing the overburden above the coal seam and then, starting at the outcrop and proceeding along the hillside, creating a .
Mar 16, 2013· Contour Mining. Contour mining is a type of surface mining that follows the contour of a hill or mountain leaving terraces in the mountainside. This method is .
coal countur surface strip mining. Surface mining Wikipedia, the free encyclopedia "Strip mining" is the practice of mining a seam of mineral, by first ...
The Surface Mining Control and Reclamation Act is a law passed by the Congress in 1977 to regulate the environmental effects coal mining has in the United States. The law created a program to regulate active coal mines and another to rehabilitate abandoned mines.
Surface mining, including strip mining, openpit 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 to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels.