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S. A. Tolstunov
S. A. Tolstunov
IAEHNS
IAEHNS

Articles

Mining
  • Date submitted
    2018-01-04
  • Date accepted
    2018-03-08
  • Date published
    2018-06-25

Influence of mining-geological conditions and technogenic factors on blastholes stability during open mining of apatite-nepheline ores

Article preview

The paper presents the results of borehole stability research and considers possible causes of emergencies. The features of the blast hole drilling process are analyzed taking into account the properties of the rock. Based on the distribution of speed of drill fines removal from the well, an algorithm for selecting drilling modes is proposed. The nature of change in the size of the holess over time has been analyzed. This paper investigates the influence of rock fracturing and its water content on borehole stability. Possible options for eliminating the man-made impact on the massif near holes and options for fixing the hole walls with soft shells are suggested. The experimental data on the installation of shells for the conditions of open mining of apatite-nepheline ores are given. The operability and effectiveness of the technology is proved.

How to cite: Overchenko M.N., Tolstunov S.A., Mozer S.P. Influence of mining-geological conditions and technogenic factors on blastholes stability during open mining of apatite-nepheline ores // Journal of Mining Institute. 2018. Vol. 231. p. 239. DOI: 10.25515/PMI.2018.3.239
Geotechnology issues
  • Date submitted
    2012-12-19
  • Date accepted
    2013-02-18
  • Date published
    2013-06-01

Determination of the effectiveness of the use of shock machines for hard rock mining

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The paper deals with the application of air and hydraulic hammer tools for the destruction of hard rock in the mode of continuous operation. The regularities of the effectiveness of demolition of rock, depending on the shape and angle of the executive body to the surface are deter-mined. There are recommendations for use the executive bodies of shock mining machines in the article.

How to cite: Tolstunov S.A., Polovinko A.V. Determination of the effectiveness of the use of shock machines for hard rock mining // Journal of Mining Institute. 2013. Vol. 205. p. 36.

Effect of speed advance strike face to the environmental consequences of mining

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Status of the marginal zone of the reservoir developed largely determines the conditions of interaction of mechanized roof supports of the complex and surrounding rocks, and also defines direct link with deposition of surface and gas evolution in the face cleansing. In this paper we consider the influence of strike face speed subsidence at the surface and condition of the marginal zone of the reservoir.

How to cite: Tolstunov S.A., Montikov A.V. Effect of speed advance strike face to the environmental consequences of mining // Journal of Mining Institute. 2013. Vol. 203. p. 112.
Present-day problems of geomechanics, mining practice and innovation technologies in mining engineering
  • Date submitted
    2011-09-07
  • Date accepted
    2011-11-04
  • Date published
    2012-03-01

Legitimacies of flushing method formation by mechanically in the conditions of long-term frozen grounds

Article preview

On the basis of the experimental data received at erection mass of a file by throwing car with the bottom emission of breed, in the conditions of negative temperatures laws  of distribution and a trajectory of flight of pieces of breed of the various sizes are established.

How to cite: Tolstunov S.A., Montikov A.V. Legitimacies of flushing method formation by mechanically in the conditions of long-term frozen grounds // Journal of Mining Institute. 2012. Vol. 197. p. 138.
Geomechanics
  • Date submitted
    2010-08-30
  • Date accepted
    2010-10-14
  • Date published
    2011-02-01

Influence of a condition of a regional zone of a layer on the mechanism of occurrence of explosions of methane on collieries

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On the basis of consideration of processes of the is intense-deformed condition of a regional zone of a layer it is established that in the in a complex- mechanized clearing faces probably occurrence of the weakened zones. Within these zones inevitably occurrence of superfluous guantity of the methane accompanied by exsplosions of gas and a dust.

How to cite: Tolstunov S.A. Influence of a condition of a regional zone of a layer on the mechanism of occurrence of explosions of methane on collieries // Journal of Mining Institute. 2011. Vol. 190. p. 249.
Geotechnology
  • Date submitted
    2008-07-09
  • Date accepted
    2008-09-08
  • Date published
    2009-01-01

Increase of efficiency and safety of mining works at management of mountain pressure by filling of the excavated space

Article preview

Use of traditional technologies by development of deposits of the minerals having hard layers of a roof and ground, becomes complicated difficulties of management of mountain pressure. In these conditions have gained distribution the technologies providing оставление of sights for maintenance of the basic roof. To leave a pillar sights conducts to significant losses of a mineral. Use of a bookmark instead of sights gives a gain of stocks of a mineral, raises efficiency and safety of mountain works. In work data about effective areas of descent and transport dry stowing materials in mountain developments are cited.

How to cite: Tolstunov S.A. Increase of efficiency and safety of mining works at management of mountain pressure by filling of the excavated space // Journal of Mining Institute. 2009. Vol. 180. p. 7-11.
Safety in mining industry
  • Date submitted
    2006-10-18
  • Date accepted
    2006-12-08
  • Date published
    2007-04-01

Increase of efficiency and safety of mining works at coal stripping by large splinter

Article preview

Underground development of deposits with the use of coal plow machines for mine destruction is a long-term prospect due to full automation of the working process. A serious disadvantage of mechanical destruction is a large energy consumption for separation. The author's development shows the possibility of creating coal-plow machines with a new principle of ore separation based on the detachment of coarse clastic ore. The principle is developed in SPMI and allows to reduce energy consumption for ore breaking in comparison with the outdated domestic and world prototype.

How to cite: Tolstunov S.A., Mozer S.P. Increase of efficiency and safety of mining works at coal stripping by large splinter // Journal of Mining Institute. 2007. Vol. 172. p. 186-189.
Cultural and Educational Traditions in the History of Mining Institute and Higher School
  • Date submitted
    2004-10-18
  • Date accepted
    2004-11-07
  • Date published
    2005-05-01

The influence of mechanics on the development of mining engineering up to the beginning of the twentieth century

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The article deals with the development of mechanics as a science in its historical development up to the beginning of XX century. The peculiarity of the historical development of mechanics is due to the development of technology. At the initial stage till the end of XVIII - beginning of XIX centuries technique was ahead of mechanics development, and then with the development of differential and integral calculus mechanics begins to be ahead of technique and provides its further development. The article reexamines the phases of development of technique and mechanics, while noting the trends in the development of individual sections of mechanics. Due to the emerging needs of mining, both simple and compound machines (pumps, winders, blowers, etc.) arise and are improved. With their appearance arises the need for their maintenance and repair. Special attention is paid to the contribution of Russian scientists and inventors to the progress of engineering and mechanics.

How to cite: Gospodarikov A.P., Tolstunov S.A. The influence of mechanics on the development of mining engineering up to the beginning of the twentieth century // Journal of Mining Institute. 2005. Vol. 163. p. 38-48.
Cultural and Educational Traditions in the History of Mining Institute and Higher School
  • Date submitted
    2004-10-15
  • Date accepted
    2004-11-12
  • Date published
    2005-05-01

The role of scientific societies in the development of mathematics and mining sciences

Article preview

This paper deals with the formation of various scientific societies, their influence and role for the development of fundamental and natural science disciplines. Some aspects of the development of such a fundamental science as mathematics, starting from the moment of its origin and up to the present time, are considered in sufficient detail.

How to cite: Gospodarikov A.P., Tolstunov S.A. The role of scientific societies in the development of mathematics and mining sciences // Journal of Mining Institute. 2005. Vol. 163. p. 49-60.
Modern problems of geomechanics and geotechnology
  • Date submitted
    2003-06-07
  • Date accepted
    2003-07-30
  • Date published
    2004-01-01

Influence of depth on the stability of brine chambers, laid on the dome-type fields

Article preview

The issues of laying of chambers on the brine fields of great depths are considered. The factors that have a favorable impact on the stability of underground dissolution chambers have been revealed. It is proposed to develop the reserves of dome-type deposits from depths of more than 2500 m.

How to cite: Tolstunov S.A., Mozer S.P. Influence of depth on the stability of brine chambers, laid on the dome-type fields // Journal of Mining Institute. 2004. Vol. 156. p. 127-129.
Mining
  • Date submitted
    1994-09-09
  • Date accepted
    1994-11-30
  • Date published
    1995-03-01

Перспективы применения гибкой технологии отработки россыпных месторождений многолетнемерзлых пород

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Рассмотрены вопросы перспективного применения пневмобаллонной крепи в гибких технологических схемах отра­ботки пластов многолетнемерзлых пород буровзрывным способом. Даны рекомендации по определению оптимальных параметров очистки забоев.

How to cite: Tolstunov S.A., Montikov A.V. // Journal of Mining Institute. 1995. Vol. 142. p. 79.
Without section
  • Date submitted
    1989-09-30
  • Date accepted
    1989-11-10
  • Date published
    1990-03-01

Проявления горного давления при использовании гибкой технологии для отработки пластов многолетнемерзлых пород

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Отработка россыпных месторождений подземным способом в условиях много­ летней мерзлоты осуществляется камерными и камерно-лавными системами разра­ ботки ...

How to cite: Tolstunov S.A., Modestov Y.A. // Journal of Mining Institute. 1990. Vol. 123. p. 20.
Without section
  • Date submitted
    1989-09-15
  • Date accepted
    1989-11-05
  • Date published
    1990-03-01

Шахтные испытания штанговых крепей на россыпных месторождениях многолетнемерзлых пород

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Разработка россыпных месторождений подземным способом в районах многолетнемерзлых пород осуществляется в большинстве случаев камерно-лавными системами разработки ...

How to cite: Tolstunov S.A., Montikov A.V. // Journal of Mining Institute. 1990. Vol. 123. p. 53.
Without section
  • Date submitted
    1979-08-06
  • Date accepted
    1979-10-03
  • Date published
    1980-02-01

Расчет околоштрековых целиков

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Шахтными и лабораторными исследованиями методом объемных моделей ус­тановлено, что работа основной кровли в известной мере аналогична работе тонких плит. В общем случае основная кровля в режиме ее установившегося движения представляет собой консольную плиту на упругом основании, кото­рая опирается на массив угля впереди очистного забоя и околоштрековые целики ...

How to cite: Tolstunov S.A. // Journal of Mining Institute. 1980. Vol. 82. p. 60.