| 摘要 |
FIELD: blasting, in particular, pinpoint blasting charges, can also be used for crushing of oversizes in openpit and underground minings. SUBSTANCE: shaped charge uses an explosive placed in a shell with a tapered shaped recess made in the form of central, conjugated V-shaped components, and additional plane surfaces, whose sides conjugate with one another, with plane surfaces of the central V-shaped components, and form a non-convex polygon in the base of the shaped recess, whose external and internal adjacent vertices are connected with the vertex of the shaped recess by the ribs of the central V-shaped components and by broken lines, whose links are the conjugation lines of the central V-shaped components, additional plane surfaces, as well as the conjugation lines of the plane surfaces of the central V-shaped components with the additional plane surfaces; the links intersect with one another and form common vertices of the broken lines; the shaped recess is furnished with additional ribs that are coaxial with the conjugation lines of the central V-shaped components and form peripheral V-shaped recesses with the additional plane surfaces, whose vertices coincide with the vertices of the broken lines; the ribs of the central V-shaped components and peripheral V-shaped recesses are connected by the sides of the non-convex polygon lying in the base of the shaped recess, whose vertices are formed by intersection of its sides with the additional ribs. EFFECT: enhanced efficiency of explosion destructive action. |
