METHOD OF DEVELOPMENT OF THICK SLOPING POTASSIUM BED WITH ROCK SALT INTERBED Russian patent published in 2011 - IPC E21C41/20 

FIELD: mining.

SUBSTANCE: method includes cutting bed development by chambers by rising sequential cuts by layers and transportation of mineral resource by vehicle. Bed development in chamber is performed by layers along the whole bed thickness, at ascending sequence by short cuts beginning from the bottom layer. Layer cuts are performed at maximum value according to cutting machine executing mechanism. At performing the cuts of rock salt interbed broken-up salt is located after the cutting machine on the chamber ground in a form of a layer, the maximum thickness of which is calculated from expression. Rock salt broken at chamber beginning is located in earlier developed chamber at a distance equal to cutting machine length. Rock salt, located after the cutting machine on developed chamber ground, is smoothed and tramped down with the aid of vehicle. Layer cuts are performed by reciprocating movements of the cutting machine.

EFFECT: invention allows increasing of selective method cost effectiveness, workers labour capacity and decreasing of power consumption connected with rock salt transportation.

4 cl, 3 dwg