УДК 622.67 https://doi.org/10.21440/2307-2091-2019-1-121-127 

A. M. Mazhitov et al. / News of the Ural State Mining University. 2019. Issue 1(53), pp. 121-127


Relevance of the work. Many mining enterprises are currently in the process of development and have exhausted almost all of their resource potential. However, when development of deposits there remains a certain amount of reserves in the depths that previously considered to be unpromising and unclaimed. This leads to the need to search for opportunities for their development. Such zones, foe example, for copper-sulphide deposits, are represented by pod-like ore bodies dispersed throughout the mine field, as a rule, of low thickness and with a low content of useful component. In this regard, the substantiation of the underground geotechnology of mining such ore bodies and deposits is a very relevant theoretical and practical task.
Purpose of the work. Substantiation of the optimal geotechnology for mining of dispersed ore bodies of stepped occurrence for efficient field mining.
Research methodology. The substantiation of the field development was made using geotechnological detailing of options for technological development schemes and their technical and economic comparison based on economic and mathematical modeling.
Results. The paper provides a rationale for the method of deposit opening and mining systems represented by dispersed ore bodies of staged occurrence. The study helped to determine that the best option for performance of dispersed ore bodies is opening with maximum use of existing mining and development workings and a stagen mining procedure with simultaneous performance of reserves (or non-commercial reserves). Moreover, based on ranking of sites, the optimal mining systems with the highest possible ore preparation were determined by economic and mathematical modeling taking into account the elements of occurrence and the content of useful component.
Conclusions. Conclusions and recommendations presented in this work can be used while design and planning of mining operations in the development of deposits of similar geological and mining characteristics.

Keywords: underground geotechnology, dispersed ore bodies, mining systems, deposit opening, economic efficiency.



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