ISSN 2079-8490

Electronic scientific journal "Scientists notes PNU"

Pacific national university

Leschinsky A. V., Lysak Yu. A. , Plotnikov A. Yu. , Shevkun E. B.

DETERMINING THE MAXIMUM GRID SIZE OF BLAST WELLS

The article solves the problem of determining the maximum size of the grid of explosive wells, taking into account the intensity of weakening of the array in the area of each exploding well. The wave of stress from the explo-sion extends beyond the boundaries of the explosive area, carrying out preliminary destruction of the surroundings of the surrounding square. The maximum grid of wells should be used when loosening overburden rocks, when the maximum size of pieces of blasted rock mass is determined only by the size of the bucket of the excavator

Keywords: wave stresses, pre-fracture the rock, a grid of blast holes