Calculation of dissipation energies and parameters of stress waves at explosion of cylindrical explosive charges in a rock
- 1 — G.V. Plekhanov Saint Petersburg Mining Institute
- 2 — G.V. Plekhanov Saint Petersburg Mining Institute
Abstract
A significant part of energy (up to 70%) in explosive destruction is irreversibly spent on heating of rock particles in the near zone and represents dissipative losses. The consequence of intensive dissipative processes is an increase in temperature and the development of induced microcracking in the medium deformed by the explosion. A significant fraction of energy remains in the explosion cavity in the form of internal energy of detonation products and can also be attributed to dissipative losses. Thus, only a part of the explosion energy is spent on the formation of mechanical disturbances. Therefore, when solving problems about the formation and propagation of stress waves, it is necessary to keep in mind the effects of energy dissipation.
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