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N. G. Demchenko
N. G. Demchenko
Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences
Institute of Comprehensive Exploitation of Mineral Resources Russian Academy of Sciences

Articles

Blasting, explosives and means of mechanization of their application
  • Date submitted
    2008-07-16
  • Date accepted
    2008-09-18
  • Date published
    2009-01-01

Methodology for determination of ideal detonation parameters of emulsion idealization capability

Article preview

It is offered non-sensitized emulsion explosive to place in a cylindrical environment of explosive. The conclusion about character of transformation of emulsion can be made of comparison of speed of front of a conic wave with parameters of a settlement shock adiabatic curve emulsion. It is supposed, that in conditions of absence of lateral unloading, explosive transformation of emulsion will be carried out in a mode of an ideal detonation.

How to cite: Demchenko N.G. Methodology for determination of ideal detonation parameters of emulsion idealization capability // Journal of Mining Institute. 2009. Vol. 180. p. 123-124.
Without section
  • Date submitted
    2000-07-13
  • Date accepted
    2000-08-22
  • Date published
    2001-02-01

Experimental simulation of the penetration of chemically active aerosol into destructible material

Article preview

At the previous conference, the authors made a presentation about a very effective way of destroying materials (including rocks) with the help of low-pressure chemically active jet (CJA) impact on them. Further study of the phenomenon led to the formulation of a mathematical problem about the penetration of the CAB in the destructible material. The formulation of this problem was accompanied by consideration of the spherically symmetric thermal conductivity equation with a boundary condition of the first kind and with a threshold criterion for thermal destruction.

How to cite: Viktorov S.D., Demchenko N.G., Kuznetsov A.P. Experimental simulation of the penetration of chemically active aerosol into destructible material // Journal of Mining Institute. 2001. Vol. № 2 148. p. 133-136.
Without section
  • Date submitted
    2000-06-09
  • Date accepted
    2000-07-12
  • Date published
    2001-01-01

Modification of aquatol compositions considering their demixing

Article preview

Long-term practice of using aquatrinitrotoluenes for blasting shows that the main drawbacks of these compositions: tendency to delamination and relatively low water resistance, have not yet been overcome. The delamination of aquatrinitrotoluene components during formation of charges in real conditions leads to reduction of specific heat of explosive transformation of the whole charge on average up to 30 % (tab.1). Currently, emulsion explosives, which do not have these drawbacks, are more widely spread in the practice of blasting works

How to cite: Vakhotin A.A., Viktorov S.D., Demchenko N.G. Modification of aquatol compositions considering their demixing // Journal of Mining Institute. 2001. Vol. № 1 148. p. 178-179.