| 摘要 |
FIELD: blasting operations, in particular, directional-action charges, applicable for crushing of rocks at open and underground mining operations, as well as for destruction of large-sized objects and waste of metallurgical production. ^ SUBSTANCE: the shaped charge consists pf explosive 1 placed in envelope 2 with shaped recess 3, having an upper part made in the form of hemisphere 4, central conjugated V-shaped recesses 6 and 7. Adjacent additional recesses 6 and 7 are made equidimensional. Hemisphere 4 of upper shaped recess 3 and central V-shaped recesses 5 are made faced by heterogeneous materials of a different density, additional V-shaped recesses 6 and 7 and central V-shaped recesses 5 are made faced by heterogeneous materials of a different density, the density of the material of the facings of hemisphere 4 of upper shaped recess 3 and additional V-shaped recesses 6 and 7 exceeds the density of the material of the facing of the central V-shaped recesses by 2.5 to 15 times. ^ EFFECT: enhanced efficiency of the destructive action of the explosion due to the enhanced power of cumulative jets and reduced cost of destruction due to rational redistribution of energy of the explosive. ^ 3 dwg |
