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V. I. Sivenkov
V. I. Sivenkov

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Articles

Article
  • Date submitted
    2000-06-21
  • Date accepted
    2000-07-22

Assessment of actual energy detonating aquatrinitrotoluene characteristics in long relieving blast charges considering the stability of the physical composition

Article preview

One of the main problems of effective use of water-containing explosives (WCE) in various mining and geological conditions and especially when blasting waterlogged massifs is the stability of aquatrinitrotoluene charges. When mixing a hot oxidizer solution (HOS) in mixing and charging machines with granulated or flaked TNT, the latter, having the density of granules p = 1,48+1,5 g/cm3, cannot be kept suspended in the explosive mixture, since the density of HOS does not exceed 1,4 g/cm3. As a consequence, there is a stratification of water-filled explosives, which leads to a change in the energy and detonation characteristics of explosives, to a deterioration of bottom penetration, to an increase in the yield of oversized material.

How to cite: Gorbonos M.G., Sivenkov V.I., Pochekutov V.I. Assessment of actual energy detonating aquatrinitrotoluene characteristics in long relieving blast charges considering the stability of the physical composition // Journal of Mining Institute. 2001. Vol. 148. Iss. 1. p. 180-183.
Article
  • Date submitted
    1983-07-13
  • Date accepted
    1983-09-20

Conducting drilling and blasting works in cramped conditions

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To conduct the most labor-intensive mining work in the construction of excavations, trenches, site planning is the most widely used drilling and blasting method. However, the use of blasting is often hampered by cramped conditions, when in the immediate vicinity are buildings, structures and other objects.

How to cite: Tarasenko V.P., Sivenkov V.I., Pupkov V.V. Conducting drilling and blasting works in cramped conditions // Journal of Mining Institute. 1984. Vol. 99. p. 85-88.