FIELD: mining industry; applicable in underground mining of mineral deposits. SUBSTANCE: interdeck space of forms installed in mine working is filled with concrete mix, and added to concrete mix within arch of working is nonexplosive destroying substance in certain ratio. Water-proof material is laid on the boundary of concrete mixes. Besides, marginal part of working is filled with concrete mix with addition of nonexplosive destroying substance NRS-1. EFFECT: higher efficiency. 2 cl, 1 dwg
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