Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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RATIONING OF LOSSES OF ORE AT REGISTRATION OF THE TRENCH BOTTOM

Vokhmin S.A. 1 Trebush Y.P. 1 Kurchin G.S. 1 Mayorov E.S. 1
1 Siberian federal university Institute of mining
In the article a methodical approach is given to calculation of the interconnected losses and ore impoverishments at working off of fields by chamber systems with the rudoporodny trench bottom. Traditionally standard sizes of the interconnected losses and impoverishment of ore are determined by an alternative and analytical method by criterion of the maximum profit with 1 ton of the extinguished balance stocks of mineral on the basis of comparison of economic consequences of dredging of stocks of ore on working off contours. Authors offered the final formulas for calculation of optimum sizes of losses and impoverishment which easily adapt in the elementary programs for the automated calculation on the personal computers available to the user with knowledge of work in Excel. It allows to receive all sizes for an assessment of efficiency of clearing works and graphically precisely to arrange a trench on the camera bottom at local designing.