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G. P. Paramonov
G. P. Paramonov
Saint Petersburg State Mining Institute (Technical University)
Saint Petersburg State Mining Institute (Technical University)
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Articles

Mining
  • Date submitted
    2016-10-07
  • Date published
    2016-04-01

Improving the retention of minerals in the course of separating monolith from bedrock with the use of gas generator cartridges

Results are presented on the effect of firing rate on pressure pulse in charge camera and fracture stress during spalling. Results are presented of comparative calculations using the equations of autocatalytic reactions of firing rates and escape of reaction products for the system of sodium chlorate - polythene (propylene) in pipe shape. Dependences are obtained of firing rate on concentration of gas generating mixture, its density, components size distribution and cartridge case size. Experimental and computational data were used to consider the conditions of firing turning into explosion for compositions based on sodium chlorate and hydrocarbons in layered and powdered systems. The relation is retrieved between the technological parameters of mining activities (blast hole to blast hole distance, blast hole diameter, depth of cartridge placement) and specific cartridge consumption along the spalling line with gas generators going off.

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G. P. Paramonov, V. N. Kovalevskii, Peter Mozer (2016) Improving the retention of minerals in the course of separating monolith from bedrock with the use of gas generator cartridges. Journal of Mining Institute. Vol 220. p. 532. DOI: 10.18454/pmi.2016.4.532
Mining geomechanics
  • Date submitted
    2016-11-01
  • Date published
    2013-05-01

Assessment of cracked area to its destruction in the production of blasting

The method of calculating the net hole charges, based on a combination of fracture zones. The mechanisms of energy transfer and change of stress, depending on the material filling the cracks in the explosive destruction of the fractured   rocks.

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G. P. Paramonov, A. V. Fedoseev, Yu. S. Gaponov (2013) Assessment of cracked area to its destruction in the production of blasting. Journal of Mining Institute. Vol 204. p. 294.
Development of solid mineral deposits
  • Date submitted
    2016-12-07
  • Date published
    2011-01-01

Distribution of products of destruction of granite files

The article considers the problem of size distribution of grain-size composition of the blasted rock mass, rock fragments blasted rock mass and rock blockiness. The logarithmic-normal distribution law is laid down for all blasted granite mass products. It was proved, that logarithmic variance of logarithmic normal distribution law of the fractured rock mass fragments’ distribution is a structural invariant on the level of statistical universe of the block and fragments.

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G. P. Paramonov, Yu. I. Vinogradov, A. A. Kamenskii (2011) Distribution of products of destruction of granite files. Journal of Mining Institute. Vol 189. p. 146.
Mining
  • Date submitted
    2018-08-28
  • Date published
    2018-08-26

PECULIARITIES OF MANUFACTURING AND APPLICATION OF MIXED EXPLOSIVES OF ANFO TYPE AT MINING ENTERPRISES OF MONGOLIA

The article describes problems of blasting operations carried out at an industrial scale using ammonia-nitrate explosives. Based on experimental studies conducted by the authors, it was determined that for use in mining enterprises in Mongolia, primarily in coal mines, the most rational and effective explosives are mixed ones based on ammonium nitrate in the solid state with various liquid as well as solid dispersed fuels additives - ANFO mixtures. The temperature boundaries for the phase transitions of ammonium nitrate in open areas for the period of three months for different humidity values have been determined. The indicators of oil absorption are identified depending on the cycle of phase transitions for ammonium nitrate.

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V. A. Belin, G. P. Paramonov, Zh. Zhim'yan (2018) PECULIARITIES OF MANUFACTURING AND APPLICATION OF MIXED EXPLOSIVES OF ANFO TYPE AT MINING ENTERPRISES OF MONGOLIA. Journal of Mining Institute. Vol 232. p. 364. DOI: 10.31897/pmi.2018.4.364