Continuous transfer of mining objects within a pit space and no uniform occurrence of different ore grades in the bounds of the deposit cause an implicit dependence of the results of planning outcomes. This dependence can be easily solved by using mining-geometrical modeling into the process of optimization of mining operations planning. On the basis of the classification proposed authors of the paper all the existing mining-geometrical models are to be divided into block, contour, analytical and combined ones. Nowadays none of them is dominant, however block and contour models are used more often than the others. It is due to the analysis of their characteristics that small-size block mining-geometric modeling can be grounded. In this case sizes of elementary blocks are far less than those of panels, and blocks positions are permanent. As a result it most indices are defined prior optimization. Researchers pay special attention to means of reducing block models sizes as well as to the improving methods of optimum solution searching for their sets. The first task can be solved by local division of open-pit parts into elementary blocks. The developed algorithm allows to construct automatically local sets of elementary blocks by regular grids. Each elementary block has references to neighboring blocks, this allow to make main mining-geometrical calculations. A discrete mathematical model of scheduling has been developed for solving tasks of optimizing on block model.
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