CUT-AND-FILL METHOD FOR THICK STEEP FIRE-HAZARDOUS SEAMS MINING

摘要

Use: in the mining industry in the processing of flammable powerful steep seams stowing. SUMMARY OF THE INVENTION: flexible overlap-assembled separately from the soil layer in the upper half of the floor to form a U-shaped loop of a flexible overlap the entire upper half of the floor, with a recess under the flexible carbon overlap with vogidrotehnologii explosion in the upper substage lead ahead in soil reservoir, feeding, flexible packing material to overlap closer to the center portion of the formation on its mosh- NOSTA and in the lower half of the coal under the floor recess overlapping flexible lead ahead of the middle portion of the formation of its capacity, and intermarried works as follows in each substage is, at least one layer along the strike stope. 6 yl.