The work is devoted to the analytical method of solving the problem of stabilization of quarry productivity. The dependence of the average operating stripping ratio on the duration of the operational period of the open pit activity is established. Practical calculations are presented for one of the diamond kimberlite pipes of the Democratic Republic of Congo and were performed on the basis of AutoCAD 2006 and Microsoft Excel.
The purpose of this work is to find the analytical equation of the isoline value of minerals in the open mining of complex ore deposits. As the initial data, we used the data of the cross section of a complex deposit, where three types of minerals (main and two associated) are developed. In the Cartesian rectangular coordinate system are given coordinates of points that allow to build an approximation of the desired equation. The example of application of the method of least squares for construction of the specified dependence is considered. This algorithm is implemented in a computer program based on Microsoft Excel. Numerical results were obtained and graphs were plotted.
