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Nov 04, 2018#0183;#32;The second approach, called contour mining, is used on hilly terrain and involves stripping land in a manner that mirrors its topography. Safeopedia explains Strip Mining Stripmining processes are subject to a variety of occupational and environmental health and safety regulations in any advanced country in which the activity is practiced.
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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 bench around the hill. In the past, the blasted overburden spoil was simply shoved down the hill; currently, soil is either carried down the
Other articles where Area mining is discussed: strip mining: stripmining techniques are classified as area mining or contour mining on the basis of the deposit geometry and type. The cycle of operations for both techniques consists of vegetation clearing, soil removal, drilling and blasting of overburden (if needed), stripping, removal of the coal or other mineral commodity, and reclamation.
Strip mining, removal of soil and rock (overburden) above a layer or seam (particularly coal ), followed by the removal of the exposed mineral. The common stripmining techniques are classified as area mining or contour mining on the basis of the deposit geometry and type. The cycle of operations for both techniques consists of vegetation clearing, soil removal, drilling and blasting of overburden (if
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Contour Mining. The contour method is used almost exclusively in the steep Appala #173; chian region of the United States, where coal seams outcrop from the sides of hills or mountains. Contour mining makes cuts on the slope where the coal seam is located, to remove first the overburden and then the coal itself. Overburden from adjacent cuts is used to fill previous cuts. The operator continues
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Contour mining is associated with coal. This bed of coal is located at an elevation in a mountain range or any other hilly area. It is a method of strip or surface mining.
Strip mining | Britannica
Contour mining progresses in a narrow zone following the outcrop of a mineral seam in mountainous terrain. Read More Inspire your inbox Sign up for daily fun
quot;Contour miningquot; involves removing the overburden above the mineral seam near the outcrop in hilly terrain, where the mineral outcrop usually follows the contour of the land. Contour stripping is often followed by auger mining into the hillside, to remove more of the mineral. This method commonly leaves behind terraces in mountainsides. Strip mining at Garzweiler, Germany. The lignite being
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 mountain or hill. Contour mining allows for the extraction of coal from mountainous areas, where it is not feasible to extract the entire seam, using mountain top removal mining.
association with auger mining In auger mining Augering is usually associated with contour stripmining, recovering coal for a limited depth beyond the point where stripping becomes uneconomical because the seam of coal lies so far beneath the surface.
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Definition of contour mining. Surface mining that progresses in a narrow zone following the outcrop of a coal seam in mountainous terrain, and the overburden, removed to gain access to the mineral commodity, is immediately placed in the previously mined area, such that reclamation is carried out contemporaneously with extraction.
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Contour Mining. The contour method is used almost exclusively in the steep Appala #173; chian region of the United States, where coal seams outcrop from the sides of hills or mountains. Contour mining...
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