Contour mining definition

Contour mining means a method of surface coal mining that involves making an initial mining cut along the contour of a hillside to the maximum highwall height and then making subsequent cuts along the same contour, placing spoil in the preceding cut where the coal has been removed.
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Examples of Contour mining in a sentence

  • Contour mining" means a method of surface coal mining that involves making an initial mining cut along the contour of a hillside to the maximum highwall height and then making subsequent cuts along the same contour, placing spoil in the preceding cut where the coal has been removed.

  • Inappropriate displays of affection while on school premises, or while under the custody and control of the school or during a school-related activity.

  • Contour mining allows for the partial removal of the coal seam at the elevation of the coal seam.

  • Contour mining allows for the extraction of coal where it is not feasible to extract the entire seam using the highwall method.

  • Contour mining is typically used in the mountainous areas of the Eastern United States, where coal seams are exposed along outcrops (OSMRE, 2002).

  • Contour mining Trench mining Bench mining In Batura Highwall Project, trench mining is proposed.

  • CSR Codes of State RulesCSX CSX Corporation, a rail-based freight transportationcompany CTR Contour mining Demonstrated reserves Demonstrated reserves are the sum of provenand probable reserves.

  • Contour mining is applied in areas of greater topographic relief, whereby mining progresses across the contour, maintaining as consistent a pit floor as possible.Optimization parameters are calculated for each block, including costs associated with drilling, blasting and ripping and haulage cost, which is estimated from major haulage roads and minor pit access roads against gradient.

  • Contour mining is accomplished by clearing the area to be mined, developing a strip cut to form a substantially horizontal bench and a vertical high wall that exposes the mineral deposit to be mined.

  • This process is most suitable for areas with flat terrain.2.1.3 Contour mining – The contour mining method consists of removing overburden from the seam in a pattern following the contours along a ridge or around hillside.

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