Authors: M. Cehlár, P. Rybár, J. Mihók, J. Engel

Title of the article: Economic evaluation of the mineral deposit on examples of surface mining block models

Year: 2018, Issue: 1, Pages: 46-60

Branch of knowledge: Economics and innovation management

Index UDK: 338.012

DOI: 10.26730/2587-5574-2018-1-46-58

Abstract: A very important part of the planning process is the comparison between the actual and planned values for a certain period. The inspection and comparison of planned and calculated values of mineral deposits that represent blocks of reserves included in the extraction by a model, with the values identified during the extraction in the same blocks leads to a more accurate specification of a deposit model as a basis on which the extraction-planning model has been built. The monitoring of the dispersion of actual values during/over a certain time period with an average required value is another important factor not to be neglected. The identification of a systematic error, e.g. a visible oscillation of values around another than planned average value, proves for example: the use of an unsuitable mathematical model of chemical composition mixing in selected blocks; the incorrect analysis of technological operations during the transfer of mining processes into a model. Even though daily plans are based on tactical and strategic plans, after a certain period the reality starts diverting from plans. In case that reality does not correspond spatially to a planned status, it is necessary to update both the model and plans.

Key words: economic evaluation mineral deposits surface mining block model

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