METHOD FOR RILL CUT MINING OF THICK STEEPLY DIPPING BEDS WITH FILLING Russian patent published in 1996 - IPC

FIELD: mining. SUBSTANCE: method for rill cut mining of thick steeply drilling beds with filling includes dividing the bed into inclined slices and their extraction in descending or ascending manner of each slice by short strips along the strike and filling. Formed in fill mass of extracted slice are drifts and inclines for working the adjacent inclined slice by displacing similar drifts in adjacent slices through the value of half of cross-section to the dip or to the rise of the bed. Stopes in the adjacent slices are formed by alternating on different districts of extraction field by changing the direction of extraction of short strips in adjacent slices to opposite one. Besides, prior to filling, supports with anchoring devices are laid in each strip on its floor. EFFECT: higher efficiency. 2 cl, 22 dwg