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R. E. Andreev
R. E. Andreev
G.V. Plekhanov Saint Petersburg State Mining Institute
G.V. Plekhanov Saint Petersburg State Mining Institute

Articles

Blasting, explosives and means of mechanization of their application
  • Date submitted
    2008-07-22
  • Date accepted
    2008-09-22
  • Date published
    2009-01-01

Analytical model of pressure change on the wall of the charge cavity taking into account the flow of detonation products through the axial channel of the profiled face

Article preview

In given work was considered an impulse’s formation process of extended charge explosive with installation a continuous and a special stemming in the hole. Was given the physical model to definite a size of the reflected wave impulse. Also was taken into account an increment radius of cross-section blast hole and expirations of detonation products. Was developed the model consists gas dynamic process in the hole during changing the central canal of the stemming.

How to cite: Mironov Y.A., Andreev R.E., Moldovan D.V. Analytical model of pressure change on the wall of the charge cavity taking into account the flow of detonation products through the axial channel of the profiled face // Journal of Mining Institute. 2009. Vol. 180. p. 171-174.
Blasting, explosives and means of mechanization of their application
  • Date submitted
    2006-09-19
  • Date accepted
    2006-11-23
  • Date published
    2007-03-01

Effectiveness of application of gel-based PVM in engineering

Article preview

Changes in the explosive characteristics of gelpor associated with its aging have been studied. The changes consist in the decrease of energy release of "old" gelpor up to 2 times in comparison with "fresh" one. Recommendations on application of gelpor in engineering are given.

How to cite: Brigadin I.V., Mikhailov N.P., Doroshenko S.I., Semenyak S.Y., Andreev R.E. Effectiveness of application of gel-based PVM in engineering // Journal of Mining Institute. 2007. Vol. 171. p. 150-152.