FIELD: mining industry. SUBSTANCE: according to method, monolithic block of side rock is contoured by vertical loosening planes in the form of column by lateral loosening planes into separate blocks located and held in receiving working created by crossing vertical loosening planes. In horizontal cross-section they are formed as trapezium, rectangular or triangular. Free space between separate rock blocks and contour of receiving working is filled with gobbing material. Supporting-guiding column formed from rock blocks is used in function of interchamber pillar at stoping operation by continuous front along strike. EFFECT: high efficiency. 4 cl, 5 dwg
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