RU95107115A - Method of mining of gently dipping and sloping mineral seams - Google Patents

Abstract

FIELD: mining applicable in development, preparation and getting of gently dipping and sloping coal seams occurring in slopping field of large extension to dip and strike. SUBSTANCE: offered method includes division of mine field to the strike by panels (parts), driving of inclined workings in the middle of panel in mineral seam at angle to extraction drifts , belt and service inclines, and getting of seam by pillar-and-board and long-face systems in inclined workings. Mine (sloping) field of large extent to the strike and to the dip is divided, both, to the strike and to the dip by parts with the help of driving service inclines and extraction drifts. In this case, service inclines on the side of rear flank are driven in the upper part of field from the main drifts, which divide the field to the dip into parts, and on the side of the front flank, they are driven in the lower part of the filed from extraction drifts, dividing the field to the dip by parts to field lower boundary. Seam is won by long pillars and breakage faces in the lower part of the field, first, of intermediate inclines, and then, service inclines in field upper part, at the beginning of service inclines, and then, intermediate inclines. In mining of coal seams extending to under alluvium, and mineral deposits by opencast and underground methods, intermediate inclines are driven to the field lower boundary, and service inclines located on the side of rear flank in field upper part are driven, either, from the day surface, or from the open pit floor. EFFECT: higher efficiency.

Claims (1)

The invention relates to mining and can be used for opening, preparing and mining flat and inclined seams of coal located in sloping fields of great length along strike and dip. In the method of developing shallow and inclined strata of minerals, including dividing the mine field along the strike on the panel (parts), conducted in the middle of the panel along the stratum of the mineral at an angle to the excavation drifts (HW) of inclined workings (HB), conveyor and auxiliary slopes and mining the stratum by pillars with the transition of lavas NV, the mine (sloping) field of great length along strike and dip is divided both along strike and dip into parts (H) by conducting additional HB (slopes) and VS, nye HB from the rear Lang carried on top of the field (RFI) from the main roadways to separating field on to B to fall, from the front Lang - the bottom B fields from VSH separating field of drop on B, up to the lower boundary of the field. The development of the formation is carried out by long columns with the transition to the bottom faces in the lower H field, first of intermediate HBs, and then of additional HBs in the high-frequency field, at the beginning of additional HBs, and then intermediate HBs. When developing coal seams going under sediment and mineral deposits using the open-underground method, intermediate HBs, conducted to the lower boundary of the field, and additional HBs located on the rear flank side in the high-frequency field are carried out either from the day surface or from the quarry soil.