FIELD: mining.
SUBSTANCE: method involves drilling, preparation and development of the thickest bed in descending order to the lowest horizon. Drilling and development of the rest beds is performed in ascending order using capital mine workings of transport and ventilation systems of the developed thick bed. Rock of driving of mine workings is arranged in mine workings of below lying extracted horizons.
EFFECT: reducing the costs for development of minefield; enlarging manufacturing capabilities.
3 dwg
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