TOWARDS THE CONCEPT OF MANAGING COMPLEX-STRUCTURED ROCK MASSIFS
The characteristic of development systems with a bookmark is given, as an alternative to the loss of ores in security targets and the process of optimizing the parameters of the bookmark to control the state of the developed arrays, increase the completeness of the use of the subsoil and the safety of the working ones. A reference is given on the practice of using development systems with a mortgage at the Manybayskoye field (Northern Kazakhstan). Permis-sible parameters of outcrops of rock and laying massifs have been determined. Information is given on methods for calculating stability parameters that differ in the approach to assessing the load-bearing elements of the array after the construction of a mine in it. According to the data obtained at the design and development stage of the experimental blocks of the deposit for the sites differing in mining and geological conditions, graphical dependencies between natural and technological parameters of the development are constructed: a nomogram for calculating the parameters of the bookmark, a nomogram for calculating the normative strength of the bearing layer of the hardening bookmark when working on the bend and a nomogram for calculating the normative strength the bearing layer of the hardening bookmark. The differentiated assessment of the ore-containing massif ensured the successful operation of the enterprise in difficult mining and geological conditions. It is shown that the parameters of the repayment of the worked space should be justified by complex studies with correction when the development conditions change with differentiation according to the properties of engineering-geological sites based on calculations of the joint work of the rock and laying array within the structure of rocks and hardening mixture. It is concluded that the optimization of the parameters of the repayment of the developed space due to the rational use of the properties of arrays is a reserve for improving the indicators of ore extraction from complex-structured deposits.