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S. Yu. Semenyak
S. Yu. Semenyak
G.V. Plekhanov Saint Petersburg Mining Institute
G.V. Plekhanov Saint Petersburg Mining Institute

Articles

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.
Mining. Ecology
  • Date submitted
    2005-06-12
  • Date accepted
    2005-07-02
  • Date published
    2006-01-01

Safety of blasting operations with industrial explosives based on utilized powders

Article preview

The article deals with the issue of the peaceful use of conversion explosives, powders used in mines, shells, torpedoes, aerial bombs, solid and liquid rocket fuel, etc. It does not touch upon other aspects of application of defense industry products in the national economy. Comparisons of the main safety characteristics of blasting operations with the use of conversion explosives: gelpor, granipor and TNT are given. The dependence of the mass fraction of harmful substances in the detonation products of gelpora, granipor and TNT on the temperature at isoentropic expansion is considered.

How to cite: Semenyak S.Y. Safety of blasting operations with industrial explosives based on utilized powders // Journal of Mining Institute. 2006. Vol. № 1 167. p. 100-102.
Development of mineral deposits
  • Date submitted
    2003-07-17
  • Date accepted
    2003-08-20
  • Date published
    2004-02-01

The possibility of using gelpora for explosive preparation of rock mass in the conditions of construction material production quarries

Article preview

The results of comparative full-scale tests of industrial explosives: gelpor GP-2, grammonite 79/21 and ammonite No. 6 ZhV are presented. The comparison was carried out according to the parameters of the air shock wave formed during the explosion of similar mass of concentrated charges of gelpor, grammonite and ammonite.

How to cite: Semenyak S.Y. The possibility of using gelpora for explosive preparation of rock mass in the conditions of construction material production quarries // Journal of Mining Institute. 2004. Vol. № 2 159. p. 70-72.
Mineral resources development
  • Date submitted
    2002-07-09
  • Date accepted
    2002-08-06
  • Date published
    2003-02-01

Use of conversion explosives in quarries in the Northwest region

Article preview

The paper analyzes the use of conversion explosives in the quarry of Kamennogorsk combine of nonmetallic materials. It shows the possibility and efficiency of replacing TNT-containing industrial explosives with conversion powders.

How to cite: Semenyak S.Y. Use of conversion explosives in quarries in the Northwest region // Journal of Mining Institute. 2003. Vol. № 2 155. p. 83-84.