By Monika Hardygóra; Gabriela Paszkowska; Marek Sikora
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Extra info for Mine planning and equipment selection 2004
8) End of the algorithm. The results indicate that the algorithms described in this paper works best when optimizing areas of gradually changing orientation. , 2001), more than ten frequently used graph algorithms have been successfully defined through countless tests and modifications, including borderline parallel push out and pull in, algebra operation on polygons, automatic drawing of visual slope lines and the drawing of polygons with sharing edge, etc. 3D Open pit limit polygon by MCAD.
And x ijk=1, if contour was included in this plan of mining operations, in otherwise x ijk=0. Goal function of solving a problem of annual planning of mining operations is determined by the expressions: (1) where Sijk—annual costs on mining and processing of ore by kth variant of contour of mining operations in jth sector of ith level, USD; uij, si, Ng —correspondingly number of variants of contours of mining operations in a sector, number of sectors and working benches (levels) in an open cast for a planned period.
Goal function of solving a problem of annual planning of mining operations is determined by the expressions: (1) where Sijk—annual costs on mining and processing of ore by kth variant of contour of mining operations in jth sector of ith level, USD; uij, si, Ng —correspondingly number of variants of contours of mining operations in a sector, number of sectors and working benches (levels) in an open cast for a planned period. (2) where —changing part of cost of stripping operations with cost on reloading and transportation, Page 28 USD/m3; —ore reserves in kth contour of mining jth sector ith level, m3; γor—ore density, t/m3; Qijk—reserves of rock mass in kth contour of mining jth sector ith level, m3.