Frolov A. Energy streams control during explosive failure of diverse strength rocks at the open-pit mines

The thesis work is devoted to development of methods of control the processes of forming, interaction and distribution in time and space energy streams during failure of diverse strength rock by blasthole charges explosion. The scientific principles of development the energy-saving technology of rock failure by explosion are developed that are based on the integrated account of laws of development the force and deformation processes in rocks using controlling of micro-and millisecond delay modes during explosion of blasthole charges systems in groups and between groups to achieve an effective interaction of energy streams during mass explosion of diverse strength rocks. Results of researches allowed to develop methods of the regulated distribution of energy streams during multirow mass explosion and to lay down rational parameters of drilling and blasting during failure of rocks at the open-pit mines.