METHOD FOR PREPARATION AND MINING OF EXTRACTION DISTRICTS OF MINERAL SHEET DEPOSITS

摘要

FIELD: mining industry, particular, preparation and mining of extraction districts in coal deposits. SUBSTANCE: driven from the main haulage and airway in the seam are two (twin) or three, or four side extraction workings on one or both sides of main working. Driven from side extraction workings are flank airways and mounting room through the distance somewhat larger than the anticipated longwall. Flank air- ways and mounting rooms are connected with each other by connections at distance equalling the length of anticipated longwall. Simultaneously with extraction of mineral, extraction airway is driven, and also flank airway and mounting room for the next pillar. Broken rock, in this case, is located in freeing hollow of previous mounting room and gateside pack. Driving of extraction airway up to the main working is continued and finished, either in the period of dismantling the stoping equipment in the longwall, or in the period of its mounting in mounting room of the next extraction pillar. EFFECT: higher efficiency. 2 cl, 4 dwg