ISSN 2079-8490

Electronic scientific journal "Scientists notes PNU"

Pacific national university

Leschinsky A. V., Shevkun E. B.

DISPERSAL OF CHARGES OF BLAST WELLS BY THE POLYFOAM BODIES OF ROTATION

When determining the ratio of the size of the balls and wells should take into account that the actual diameters of the wells differ from diameter drilling tools as due to the partial collapse of the walls of the well during drilling, and as a result of wear. Scope balls with nominal diameter of well provide the filling fac-tor of the well Kз, close to the minimum, that requires small consumption of polyfoam and improves economic performance.

Keywords: blast wells, dispersal of charges, polyfoam.