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S. I. Fomin
S. I. Fomin
Saint Petersburg State Mining Institute (Technical University)
Saint Petersburg State Mining Institute (Technical University)
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Articles

Mining
  • Date submitted
    2016-10-11
  • Date published
    2015-06-01

Opencast mine parameters sensitivity analysis at preliminary study of a mining project

The article describes sensitivity analysis, aimed at variables dependence detection: to what extent open cast mine ultimate efficiency or performance will be affected when one of the key input variables is changed. The stronger the dependence effect, the higher the project implementation risk. The sensitivity analysis objective is demonstrated – principle factors identification – critical variables, capable of having a serious influence on the project implementation results, and impact verification of progressive (single) factorial changes. Sensitivity analysis in its content is a single-factor analysis. Output, as a basic performance indicator of an open cast mine, characterizes mine development intensity and is determined by mining-engineering and economic factors. It is proved that the impact degree from various parameters on the open cast mine output is characterized by elasticity ratio. The project indicators sensitivity analysis, which was carried out, allowed to establish the impact degree that various parameters have on the open cast mine output, which takes place in a high-angle ore deposit, characterized by elasticity ratio.

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S. I. Fomin, E. I. Bazarova (2015) Opencast mine parameters sensitivity analysis at preliminary study of a mining project. Journal of Mining Institute. Vol 216. p. 76.
Geotechnology for development of solid mining fields
  • Date submitted
    2016-10-25
  • Date published
    2014-01-01

Mining units quantity determination to achieve the established open cast output and averaging ore requirements

The balancing stripping ratio and ore production methods include simulation in order to reduce the prestripping waste and maintain a suitable space between each bench.  The reliability analysis method of mining technological system in mine design is discussed in this paper. The probabilistic approach used here takes into consideration the uncertainty associated with estimation of most economic, mining and geological variables. This paper concerns the rational distribution of reserves which can be mined and waste advancing down the open cast site at steep pitch deposit.

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S. I. Fomin, V. A. Shevelev, M. A. Marinin (2014) Mining units quantity determination to achieve the established open cast output and averaging ore requirements. Journal of Mining Institute. Vol 207. p. 70.
Geotechnology for development of solid mining fields
  • Date submitted
    2016-10-25
  • Date published
    2014-01-01

Open cast geological conditions analysis and the mining units formation in ore losses and dilution determining

The opencast geological conditions analysis and the mining units formation in ore losses and dilution determining is given in dynamic type.  The optimum height of immixed rocks triangle on minimum economic damage from losses and dilution criterion is determined. Minimum damage of an enterprise from losses and dilution of one ton of ore that provides minimum producing cost of ore mining is accepted as a criterion of optimum correlation of technological standards of rate of contact areas and standards of losses and dilution of ore.

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S. I. Fomin, P. B. Kava, M. A. Marinin (2014) Open cast geological conditions analysis and the mining units formation in ore losses and dilution determining. Journal of Mining Institute. Vol 207. p. 74.
  • Date submitted
    2016-10-30
  • Date published
    2013-06-01

Technology of overburden rock bench development by using a dragline with accommodation of waste rock in the goaf

Horizontal or gently dipping (less than 10 ), mineral deposits, to which the majority of sedimentary deposits, such as oil shale, coal, peat, clay, limestone etc. belongs to, with relatively thick sediment overburden advisable to practice using transtoptless overburden removal technology, that is using a powerful stripping equipment – draglines. The main advantage of this technology is the placement of overburden directly into quarries goaf, significantly reducing the rented for the waste dumps disposing areas, and reduce the costs of mining-reclamation works.

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S. I. Fomin, D. A. Vedrova (2013) Technology of overburden rock bench development by using a dragline with accommodation of waste rock in the goaf. Journal of Mining Institute. Vol 205. p. 47.
Modern methods and systems for indication and monitoring of environmental components
  • Date submitted
    2016-11-03
  • Date published
    2013-04-01

The ecological negative influence reduction ways on mining regions

Coal mining can result in a number of adverse effects on the environment. Open  cast coal mines leaves areas of land that are no longer usable and leaves a scarred landscape with no scenic value. Rehabilitation can mitigate some of these concerns. Mine tailing dumps produce acid mine drainage which can seep into waterways and aquifers with consequences on ecological and human health. Subsidence of land surfaces due to collapse of mine tunnels can also occur. During the mining operation methane, a potent greenhouse gas and a constituent of fire damp, can be released. Wherever it occurs in the world, surface mining of coal completely eliminates existing vegetation, destroys the genetic soil profile, displaces or destroys wildlife and habitat, degrades air quality, alters current land uses, and to some extent permanently changes the general topography of the area mined.

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S. I. Fomin, A. A. Faul' (2013) The ecological negative influence reduction ways on mining regions. Journal of Mining Institute. Vol 203. p. 215.
Mining
  • Date submitted
    2016-11-11
  • Date published
    2016-05-01

Foundations for technical solutions in organizing excavation of open ore pits

To study stochastic mining technical systems of opencast mines, where parallel to clearly defined values random and indefinite factors operate, probabilistic and statistical techniques are mostly used nowadays. Formally, the task of producing a design solution may, under the conditions of indeterminacy be transformed into an equivalent deterministic problem formulated for a risky situation. Uncertainty in the initial mining, geological and technical-economic information available during the design stage may result in changing the principal output characteristics of the opencast mine and undermine its operational efficiency during its exploitation. Lowering the possible economic losses is then possible via designing a stable technological  system. To minimize the degree of indeterminacy one first of all needs to identify the area of potential risk, define the probability of its emergence and assess its potential consequences. In case such consequences may be precluded, a clearer more complete understanding of the problem would promote a better thought through reaction to potential risk in the course of implementing design solutions.

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S. I. Fomin (2016) Foundations for technical solutions in organizing excavation of open ore pits. Journal of Mining Institute. Vol 221. p. 644. DOI: 10.18454/pmi.2016.5.644
Present-day problems of geomechanics, mining practice and innovation technologies in mining engineering
  • Date submitted
    2016-11-17
  • Date published
    2012-03-01

The method of contact zone ore-waste rock optimum development

The equation  to calculate economic damage from losses and dilution  of minerals is given  in dynamic type. The optimum height of immixed rocks triangle on minimum economic damage from losses and dilution criterion is determined. The equation for determination of the optimum safety berm width when forming the final edge of an open pit is presented.

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V. V. Kvitka, S. I. Fomin, P. B. Kava (2012) The method of contact zone ore-waste rock optimum development. Journal of Mining Institute. Vol 197. p. 165.
Environmental protection
  • Date submitted
    2016-11-24
  • Date published
    2012-01-01

Features land recultivation, disturbed as a result of activities of dzhidinsky mining treatment complex

Converting disturbed as a result of industrial activity land in  a  state in-suitable  for use in the national economy, to prevent their negative impacts on the surrounding  landscape  complexes, the protection of these complexes, optimization of the combination of man-made and natural landscapes is achieved  revegetation. Recultivation of the tailings left behind after work Dzhidinsky mining treatment complex will ensure reduction of negative impacts on the environment and human   health.

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S. I. Fomin, E. L. Ubugunov, V. A. Shevelev (2012) Features land recultivation, disturbed as a result of activities of dzhidinsky mining treatment complex. Journal of Mining Institute. Vol 195. p. 174.
Geotechnology
  • Date submitted
    2016-12-05
  • Date published
    2011-02-01

Open cast technological system with in-pit fully mobile crushing reliability avaluation

The mining-transport equipment in technological schemes with application of the mobile crushing equipment represents difficult mining system with consecutive and parallel connection of separate technological elements. Reliability of system is defined on the basis of reliability of its components.

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S. I. Fomin, A. A. Faul', A. I. Ponomarev (2011) Open cast technological system with in-pit fully mobile crushing reliability avaluation. Journal of Mining Institute. Vol 190. p. 51.