METHOD OF DRIVING MINE WORKINGS Russian patent published in 2019 - IPC E21C41/16 

FIELD: mining.

SUBSTANCE: invention relates to mining industry. Method of driving mine workings during underground development of deposits by systems of horizontal layers with tabbing and ascending excavation of ore bodies, including drilling blast holes, their charging and blasting, broken rock loading and transportation according to invention, arrivals on layers and ventilation breakdowns of each layer are arranged one above another. After development of next layer of ore, run-in or break-up to overlying layer is formed by blasting of mine working roof and location of broken rock on working bed. Loading and transportation of broken rock is performed only in volume required for formation of required height. Explosion of each cut at blasting of roof is performed without formation of cutting cavity on empty space of underlying mine working.

EFFECT: technical result consists in reduction of costs for drilling and blasting operations, loading and transportation of broken rock, as well as exclusion of costs for stowing operations when driving mines.

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