Investigation of bearing pressure at different order of block excavation in a floor (for conditions of mining of lower horizons of Kirovsky mine of Apatit Combine)

Abstract

Mining of ore deposits in conditions of increased mining pressure is often associated with dangerous stress concentrations that can cause harmful consequences for production: deformation of workings and separate sections of the ore body, crushing of pillars, self-collapse of ore and other phenomena that increase the danger of work, losses of minerals, labor and cost.