APPLICATION OF A DEVELOPMENT SYSTEM WITH A DIAGONAL ARRANGEMENT OF PRODUCING STOPES IN THE POTASH ORE EXTRACTION

Abstract

The improvement of the room mining system for the extraction of potash salts is cur-rently very relevant, as it allows solving a number of tasks – from improving the safety of min-ing operations to improving the quality of the extracted ore. The use of producing stopes ori-ented in the direction of the fold axes of the working seams allows reducing the dilution of ore by minimizing the cases of pruning of the rock salt overlying seams, as well as increase the productivity of combine systems by increasing the length of the producing stopes and a smooth-er junction of the stopes and the extraction drift. The article considers the application of an im-proved development system on the 4th western block of the 4th-5th north-western panel of the BKPRU-4 mine take of Uralkali PJSC.