Skipochka S.I. Conceptual basis of mining intensification by the geomechanical factor

Geoteh. meh. 2019, 145, 97-107

https://doi.org/10.1051/e3sconf/201910900089

Conceptual basis of mining intensification by the geomechanical factor

1Skipochka S.I.

1Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences ofUkraine

UDC 622.7.012.15

Language: English

Abstract.

The object of research is the geomechanical processes, that occur in a rock mass at high rates of exposure. The goal of the work – to develop a concept of intensification of mining operations, taking into account some geomechanical processes occurring in the “rock massif – mining workings – support and protective structures” system. The article is the result of theoretical and experimental research materials, including analysis and synthesis, carried out for the conditions of coal, non-metallic and iron-ore mines. Positive and negative geomechanical processes and phenomena, occurring during intensification of mining operations, have been substantiated. A set of technical and technological solutions to eliminate the negative phenomena associated with high mining rates development of mineral resources has been proposed. Concept of the intensification of coal mining by the geomechanical factor is formulated.  As in the case of taking into account production, socio-economic and other factors, the adaptation of technical and technological conditions of coal mining to geomechanical processes in the coal-rock massif should be carried out by searching for optimal solutions based on three main criteria. They are: mining safety, cost of coal mining and labor productivity. The main way to intensify coal mining is to increase the load on the coal face. This is achieved by increasing the speed of cleaning works. The negative geomechanical factor at high face traversing speed is an increase in spacing of the main roof breaks. Technical and technological solutions should be aimed at reducing it to the optimal size. Another way is to  sufficient resistance to the face and drift support structures, as well as constructing special security structures in the wing part of the junction. Ways to solve this problem are justified on the basis of optimization conditions. The concept of intensifying the work of ore mines taking into account the geomechanical factor formulated. Recommendations, presented in this article, will significantly reduce the conditionally fixed costs of mining production and improve miner's safety.

Keywords: solid minerals, underground mining, mining intensification, geomechanical factor, positive phenomena, negative processes, reduction of influence, technical and technological solutions.

 

References

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About the author

Skipochka Serhii Ivanovych, Doctor of Technical Sciences (D. Sc.), Professor, Head of Laboratory of physics and geomechanical monitoring of rocks massif, Institute of Geotechnical Mechanics named N.S. Poljakov of National Academy of Sciences of Ukraine (IGTM, NAS of Ukraine), Dnipro, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.