Substantiation of environmental and resource-saving technologies for void filling under underground ore mining

Authors

  • Vasil Lyashenko State Enterprise «Ukrainian Research and Design Institute of Industrial Technology», 37, Svobody str., Zhovti Vody, Dnepropetrovsk region, Ukraine, 52204, Ukraine https://orcid.org/0000-0001-8361-4179
  • Oleh Khomenko Dnipro University of Technology, 19, D. Yavornytskoho ave., Dnipro, Ukraine, 49005, Ukraine https://orcid.org/0000-0001-7498-8494
  • Vladimir Golik Federal State Budgetary Institution of Science of the Federal Science Center «Vladikavkaz Scientific Center of the Russian Academy of Sciences», 93a, Markova str., Vladikavkaz, Russian Federation, 362002, Ukraine https://orcid.org/0000-0002-1181-8452
  • Fedor Topolnij State Higher Educational Institution «Central Ukrainian National Technical University», 8, Universytetskyi ave., Kropyvnytskyi, Ukraine, 25006, Ukraine https://orcid.org/0000-0002-3363-4646
  • Olha Helevera State Higher Educational Institution «Volodymyr Vynnychenko Central Ukrainian State Pedagogical University», 1, Shevchenko str., Kropyvnytskyi, Ukraine, 25006, Ukraine https://orcid.org/0000-0002-1582-9714

DOI:

https://doi.org/10.15587/2312-8372.2020.200022

Keywords:

mountain range, underground development, void filling, environmental and resource conservation technology, mining efficiency.

Abstract

The object of research is the technology and technical means to clear the voids during the underground mining of ores in the disturbed arrays. One of the most problematic places is the filling of man-made voids that affect the occurrence and redistribution of the stress-strain state (SSS) of the rock mass. Their existence in the earth's crust provokes disturbance of the daily surface, as well as the influence of geomechanical and seismic phenomena, up to the level of earthquakes.

Analytical researches, comparative analysis of theoretical and practical results by standard and new methods with the participation of the authors are performed. The peculiarities of the manifestation of mountain pressure in the rock massifs of a complex structure are considered, due to the intensity of the fracture structures (acoustic stiffness from 0.11 to 0.18 MPa/s, impact coefficient – 0.98). The conditions of manifestation of residual bearing capacity of disturbed rocks and translation of geomaterials into the volume compression mode were investigated (in the zone of disturbed rocks the attenuation coefficient decreases to 0.04–0.15 from the initial value of 0.25–0.35). The basic estimation of durability of workings and inhomogeneous rocks with a strength of 50–150 MPa at depths up to 600 m is shown, depending on the position of workings with respect to the elements of structural disturbance and the possibility of creating reliable structures. Conclusions have been made about the efficiency of the use of load-bearing structures from rocks of greater than 0.2 m in size and mechanical strength of more than 50 MPa, which allows to expose the roof without collapsing at spans of up to 50 m. the bearing layer of the rocks produced space can be filled by insulation or a hardener with a strength of up to 1.2 MPa. The research results can be used in the underground development of ore deposits of complex structure of Ukraine, the Russian Federation, the Republic of Kazakhstan and other developed mining countries of the world.

Author Biographies

Vasil Lyashenko, State Enterprise «Ukrainian Research and Design Institute of Industrial Technology», 37, Svobody str., Zhovti Vody, Dnepropetrovsk region, Ukraine, 52204

PhD, Senior Researcher, Head of Department

Research Department

Oleh Khomenko, Dnipro University of Technology, 19, D. Yavornytskoho ave., Dnipro, Ukraine, 49005

Doctor of Technical Sciences, Professor

Department of Mining Engineering and Education

Vladimir Golik, Federal State Budgetary Institution of Science of the Federal Science Center «Vladikavkaz Scientific Center of the Russian Academy of Sciences», 93a, Markova str., Vladikavkaz, Russian Federation, 362002

Doctor of Technical Sciences, Professor

Geophysical Institute

Fedor Topolnij, State Higher Educational Institution «Central Ukrainian National Technical University», 8, Universytetskyi ave., Kropyvnytskyi, Ukraine, 25006

Doctor of Biological Sciences, Professor

Department of General Agriculture

Olha Helevera, State Higher Educational Institution «Volodymyr Vynnychenko Central Ukrainian State Pedagogical University», 1, Shevchenko str., Kropyvnytskyi, Ukraine, 25006

PhD, Associate Professor

Department of Geography and Geoecology

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Published

2020-03-05

How to Cite

Lyashenko, V., Khomenko, O., Golik, V., Topolnij, F., & Helevera, O. (2020). Substantiation of environmental and resource-saving technologies for void filling under underground ore mining. Technology Audit and Production Reserves, 2(3(52), 9–16. https://doi.org/10.15587/2312-8372.2020.200022

Issue

Vol. 2 No. 3(52) (2020): Chemical engineering

Section

Ecology and Environmental Technology: Original Research

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Copyright (c) 2020 Vasil Lyashenko, Oleh Khomenko, Vladimir Golik, Fedor Topolnij, Olha Helevera

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