FIELD: mining; applicable in underground working of weak kimberlite ores. SUBSTANCE: method includes ore mining by layer cross-cuts, driving of filling-and-airway workings, ore extraction in layer cross-cuts, ore haulage in layer and work involved in filling of worked-out cross-cuts. Driven in next layer is stope drift and filling-and-airway drifts and panel boundary. Ore is mined from stope drift at acute angle to its long axis by mining machine in cross-cut at angle of 2-15 deg to horizon up to filling-and-airway drift, and mined ore is delivered by conveyors to stope drift, and then, through stope drift, to ore chute. When mining machine goes to next layer cross-cut, filling operations are effected in worked-out cross-cut, for which purpose, supplied from bypassing raise by conveyors is filling material in form of crushed rock of definite granulometric composition to fill a part of space of layer cross-cut. Material is filled and subjected to vibration to attain its maximum compaction. Then, solidifying slurry is injected into fill pores left after compaction. Said operations are repeated until worked-out cross-cut is fully filled with filling crushed rock, and fill is solidified by injection of solidifying slurry. After ore extraction from all layer cross-cuts, stoping machine are used for ore mining from pillars between filled layer cross-cuts. Worked-out space after pillar extraction is filled with said filling material and solidified with said solidifying slurry with use of said procedure in filling of worked-out spaces of layer cross- cuts. After mining of layer, development and filling-and-airway drifts are filled with crushed rock with help of their conveyors for its transportation. Filling and compaction of crushed rock and injection of it with solidifying slurry are performed by use of procedures in filling and solidifying of fill in layer cross-cuts as described above. Driven above development and filling-and-airway drifts filled with filling material are development and filling-and-airway drifts by mining machines for extraction of a new layer with transportation of extracted ore during driving of said drifts by conveyors used in mining of previous layer. After driving of said layer drifts, lifting conveyors are reinstalled and secured in roof of made drifts for mining of new layer. EFFECT: higher efficiency of mining and reduced expenditures in filling operations. 4 dwg
