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The article considers the influence of rock strength, type of explosive,
diameter and length of the charge in the well subdrill on the quality of rock crushing. It
was found that about 50% or more of the length of the subdrilled well is used irrationally,
and only 50% is used for its intended purpose to destroy the explosive charge in order
to destroy the massif by explosion. To determine the effect of the distance between
charges on the amount of resistance to be overcome along the open-pit bottom,
industrial experiments were carried out at the NMMC and AMMC quarries

  • Web Address
  • DOI
  • Date of creation in the UzSCI system 06-09-2022
  • Read count 175
  • Date of publication 30-06-2022
  • Main LanguageIngliz
  • Pages74-78
English

The article considers the influence of rock strength, type of explosive,
diameter and length of the charge in the well subdrill on the quality of rock crushing. It
was found that about 50% or more of the length of the subdrilled well is used irrationally,
and only 50% is used for its intended purpose to destroy the explosive charge in order
to destroy the massif by explosion. To determine the effect of the distance between
charges on the amount of resistance to be overcome along the open-pit bottom,
industrial experiments were carried out at the NMMC and AMMC quarries

Author name position Name of organisation
1 Umarov Y.F. teacher Almalyk branch of NRTU
2 Kudratov I.A. teacher TSTU
3 Zairov S.. teacher NSMI
4 Makhmudov D.R. teacher TSTU
5 Ochilov S.A. teacher TSTU
Name of reference
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3 S.S. Zairov, D.R. Makhmudov, S.R. Urinov S. Theoretical and experimental studies of explosive destruction of rocks in various forms of a clamped medium. “Mining Journal”. 2018. 46
4 M.F. Drukovanny. “Controlling the effect of the explosion of borehole charges on quarries”. 1980. 224
5 F.Y. Umarov, D.R. Makhmudov, Sh.A. Ochilov. Methodology for studying the reduction of strength, elastic and deformation properties of rocks in landfill conditions. “Mining Bulletin of Uzbekistan”. 2018. 29
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14 Z. Xiang, C.S. Kabir. Simplified transient-IPR modeling in intermittent gas lift and plunger-lift systems. “Journal of petroleum science and engineering”. 2019. 31
15 E. Steinar, Z. Changjiang. Asymptotic stability of the compressible gas-liquid model with well-formation interaction and gravity. “Journal of differential equations” 2014. 3226
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17 S.M. Oldyrev, L.A. Nagorsky. Choice of rational complete set of plant for purification of used oil. “Agricultural machinery and technologies: scientificproduction and information journal”. 2015. 33
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