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M. A. Karasev
M. A. Karasev
Saint Petersburg State Mining Institute (Technical University)
Saint Petersburg State Mining Institute (Technical University)
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Articles

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.
Geomechanics
  • Date submitted
    2016-12-05
  • Date published
    2011-02-01

Geomechanical analysis of underground pillar station with step by step excavation

Numerical modeling of cast iron lining stress and strain state of pylon deep underground station is done. Due to complex geometry of underground station, step by step excavation and lining installation numerical modeling was done in three dimensional space.

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P. A. Demenkov, M. A. Karasev, D. A. Potemkin (2011) Geomechanical analysis of underground pillar station with step by step excavation. Journal of Mining Institute. Vol 190. p. 220.