(PDF) Mining Methods: Part ISurface mining
Strip mining is ideally applied where the surface of the ground and the ore body itself ar e relatively horizontal and not too deep under the surfa ce, and a wide area is av ailable to be mined in
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Strip mining is ideally applied where the surface of the ground and the ore body itself ar e relatively horizontal and not too deep under the surfa ce, and a wide area is av ailable to be mined in
Notes Cover following topics Contour Mining, Strip Mining, Room amp; Pillar Mining Method, Shortwall Mining etcCLICK HERE TO DOWNLOAD NOTES FOR UNDERGROUND MINING METHODS
#0183;#32;Other articles where Contour strip mining is discussed: 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.
Compare area strip mining, contour strip mining, dredging, mountaintop removal, subsurface mining. ore Part of a metalyielding material that can be economically and legally extracted at a given time.
contour strip mining. strip mining. form of surface mining in which bulldozers, power shovels, or stripping wheels remove large chunks of the earths surface in strips. sub surface mining. extraction of a metal ore or fuel resource such as coal from a deep underground deposit. surface mining.
Area Strip mining and Contour mining are two types of surface coal mining techniques. Area strip mining is a type of mining used on a flat terrain. In this, an earthmover. GK, General Studies, Optional notes for UPSC, IAS, Banking, Civil Services.
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Strip Mining. Strip mining is a kind of surface mining. The ore is very near to the surface of the land but has one or more layers of rock and filth on top of it. To mine the ore, these layers have to be removed. The steps in strip mining are similar to openpit mining.
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.
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.
Andrew P. Schissler, in Encyclopedia of Energy, 2004. Strip Mining. Strip mining is employed in coal reserves where the overburden is removed in rectangular blocks in plan view called pits or strips. The pits are parallel and adjacent to each other. Strip mining is fundamentally different from contour or area mining on how the overburden is displaced, called spoil handling.
#0183;#32;Strip mining can have unwanted effects on the natural ecosystem of the area where the mining is taking place. Plant and animal life is often killed off, taking years to regenerate. In addition to the death of plants and animals, the land also experiences increased susceptibility to
#0183;#32;In contour strip mining, strips are dug out around the contours of a mountain, and miners must be more careful to avoid collapses and other problems which can cause injuries or deaths. As one might imagine from the description, strip mining can be extremely disruptive.
Strip mining | Britannica. #183; 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
2 #0183;#32;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
quot;Strip miningquot; is the practice of mining a seam of mineral, by first removing a long strip of overlying soil and rock (the overburden); this activity is also referred to as quot;overburden removalquot;.It is most commonly used to mine coal and lignite (brown coal).Strip mining is only practical when the ore body to be excavated is relatively near the surface.
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