Tishenko S. Technological methods development of destruction dynamic optimization by rocks blocking screening of explosive massif.

The theses are devoted to developing of technical methods of optimizing destruction dynamics optimization by block screening of a blasted rock massif by theoretical generalization of rules of blasted sinking and destroying, screened by a blast dynamic wave. The paper reveals a mechanism of forming previous blast dynamic destruction zone at integration of blasthole explosives force-fields at the edge of the blasted rock massif. The paper gives a system of technological methods for drilling and blasting and studies their performance under various mining geological and technical conditions in iron ore pits. The drilling and blasting technological methods system is worked out and mining and geological, mining conditions iron ore opencasts are analyzed in this article.