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E. R. Kovalevskii
E. R. Kovalevskii
National Mineral Resources University (Mining University)
National Mineral Resources University (Mining University)
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Articles

Geotechnology for development of solid mining fields
  • Date submitted
    2016-10-24
  • Date published
    2014-01-01

Influence of disjunctive dislocations on parameters of secure zones on flat-lying adjacent coal seams

The article focuses influence of disjunctive dislocations on parameters of secure zones on flat-lying adjacent coal seams is considered.

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V. P. Zubov, E. R. Koval'skii, A. V. Nikiforov (2014) Influence of disjunctive dislocations on parameters of secure zones on flat-lying adjacent coal seams. Journal of Mining Institute. Vol 207. p. 22.
Geotechnology for development of solid mining fields
  • Date submitted
    2016-10-25
  • Date published
    2014-01-01

The analysis of the stress-and-strain state in vicinity of mining excavations

Estimation of the strain-and-stress state and displacement of the waterprotective layers in vicinity of mining excavations in conditions of SKRU-3 mine (Uralkali Group) is done. It is shown that loadings on pillars on layer Kr.II exceed 15-20 % loadings on layer AB.

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A. A. Sankovskii, E. R. Koval'skii (2014) The analysis of the stress-and-strain state in vicinity of mining excavations. Journal of Mining Institute. Vol 207. p. 63.
Topical issues in mining of ore and nonmetallic minerals
  • Date submitted
    2016-10-26
  • Date published
    2013-07-01

Rock displacements in the vicinity of the face of the unsupported excavation

The relationship between displacements of the excavation contour and distance to the excavation face is obtained in the paper. The relationship allows to calculate support pressure with the account for delay of the support installation. Some calculation results of axial forces in the support are given. Calculations are made on the basis of finite-element method with three dimensional models.

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E. R. Kovalevskii, S. P. Mozer, M. A. Karasev, N. I. Kosukhin (2013) Rock displacements in the vicinity of the face of the unsupported excavation. Journal of Mining Institute. Vol 206. p. 74.
Topical issues in mining of ore and nonmetallic minerals
  • Date submitted
    2016-10-26
  • Date published
    2013-07-01

Estimation of pearameters of stress-and-strain state of rock mass in vicinity of a transport excavation

An example of application of finite element method in rock mechanics is presented. Parameters of stress-and-strain state of rocks in vicinity of a shallow transport excavation are estimated. Some results of numerical modeling are presented.

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E. R. Koval'skii, S. P. Mozer, M. A. Medvedskov (2013) Estimation of pearameters of stress-and-strain state of rock mass in vicinity of a transport excavation. Journal of Mining Institute. Vol 206. p. 78.
  • Date submitted
    2016-10-30
  • Date published
    2013-06-01

Purposes of numerical experiment in rock mechanics

Numerical experiment is characterized as one of the research methods in rock mechanics. Definition of the method is given. Specifics of rock mass as a research object are described.

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E. R. Koval'skii (2013) Purposes of numerical experiment in rock mechanics. Journal of Mining Institute. Vol 205. p. 57.
Geotechnology
  • Date submitted
    2016-12-05
  • Date published
    2011-02-01

Development of tecnological shemes of the selective extraction of the complex potash seams under conditions of the starobin deposit

Approaches to selection of technological mining schemes based on selective potash seam extraction are described. Progressive technological mining schemes for potash mining company «Belaruskaliy» and the geological conditions of the IV potash horizon are reviewed. Basic aspects of the geomechanical substantiation of parameters of technological mining schemes for conditions of the new potash horizon in the presence of influence of the overlying horizons are also presented. Guidelines for substantiation of progressive mining methods for the conditions of the IV potash horizon (Third Mine, «Belaruskaliy») are developed on the basis of the modeling of the stress-and-strain state of the rocks.

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O. V. Kovalev, E. R. Koval'skii, E. R. Koval'skii, Yu. G. Sirenko, I. Yu. Tkhorikov (2011) Development of tecnological shemes of the selective extraction of the complex potash seams under conditions of the starobin deposit. Journal of Mining Institute. Vol 190. p. 16.
Mine survey
  • Date submitted
    2016-12-06
  • Date published
    2011-02-01

Some approaches to evaluate the stability of underground structures subjected to dynamic loads from earthquakes

The scheme of approach of evaluation of the stability of underground structures with account for seismic activity of rock strata is introduced. Some aspects of estimation of stability of underground structures under dynamic loads are also present. Methods of choosing the safe parameters of underground mining with account for seismic and tectonic activity of rocks are shown.

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E. R. Koval'skii, S. P. Mozer, O. V. Mikhailenko, S. A. Sidorenko (2011) Some approaches to evaluate the stability of underground structures subjected to dynamic loads from earthquakes. Journal of Mining Institute. Vol 190. p. 330.
Mining
  • Date submitted
    2016-12-19
  • Date published
    2010-02-01

The improvement of selective extraction of thick potash seams mined with room and pillar mining method

Technological scheme of selective extraction of a complex thick potash seam on the basis of cutting machine «Bucyrus Model 25 M0» is proposed. Stable pillars’ width and room dimensions are calculated. Economical effect is also presented.

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Yu. G. Sirenko, M. Yu. Brychkov, E. R. Koval'skii (2010) The improvement of selective extraction of thick potash seams mined with room and pillar mining method. Journal of Mining Institute. Vol 186. p. 79.