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M. A. Buslova
M. A. Buslova
Saint-Petersburg Mining University
Saint-Petersburg Mining University

Articles

Geotechnical Engineering and Engineering Geology
  • Date submitted
    2022-08-24
  • Date accepted
    2023-02-15
  • Online publication date
    2023-06-26
  • Date published
    2023-08-28

Modelling of the stress-strain state of block rock mass of ore deposits during development by caving mining systems

Article preview

The article is devoted to the analysis of approaches to modeling the stress-strain state of a block rock mass in the vicinity of a single mine workings and in the area of rock cantilever influence during the development of the Khibiny apatite-nepheline deposits. The analysis of the existing in international engineering practice ideas about tectonic disturbances as a geomechanical element and the experience of predicting the stress-strain state of a block rock mass was carried out. On the basis of the analysis, the formulation of the basic modeling tasks is carried out and its main results are presented. Methodological recommendations for solving similar problems were developed.

How to cite: Protosenya A.G., Belyakov N.A., Bouslova M.A. Modelling of the stress-strain state of block rock mass of ore deposits during development by caving mining systems // Journal of Mining Institute. 2023. Vol. 262. p. 619-627. EDN EGDXKM
Mining
  • Date submitted
    2019-07-13
  • Date accepted
    2019-08-31
  • Date published
    2019-12-25

Method for predicting the stress-strain state of the vertical shaft lining at the drift landing section in saliferous rocks

Article preview

The article proposes a method for predicting the stress-strain state of the vertical shaft lining in saliferous rocks at the drift landing section. The paper considers the development of geomechanical processes in the saliferous rock in the landing area, the support is viewed as a two-layer medium: the inner layer is concrete, the outer layer is compensation material. With this in view, the paper solves the problem of continuum mechanics in a spatial setting, taking into account the long-term deformation of salts and the compressibility of the compensation layer. Long-term deformation of saliferous rocks is described using the viscoplastic model of salt deformation into the numerical model, and the crushable foam model to simulate the deformation of the compensation layer. This approach considers all stages of the deformation of the compensation layer material and the development of long-term deformations of saliferous rocks, which makes it possible to increase the reliability of the forecast of the stress-strain state of the vertical shaft lining.

How to cite: Karasev M.A., Buslova M.A., Vilner M.A., Nguyen T.T. Method for predicting the stress-strain state of the vertical shaft lining at the drift landing section in saliferous rocks // Journal of Mining Institute. 2019. Vol. 240. p. 628. DOI: 10.31897/PMI.2019.6.628