DETERMINATION OF YIELD OF FRACTIONAL MATERIAL BY DESTRUCTION OF MARTITE ORE BY WATER JETS DEPENDING ON THE DIRECTION OF THEIR CUTTING

The introduction of mining hydro mechanization technologies in the conditions of the Krivoy Rog iron ore basin is a topical issue. The development of deposits of flooded rich iron ores by classical methods unsuitable for this is accompanied by a large number of losses of ore raw materials or the impossibility of mining the deposit. The use of borehole hydraulic mining technology will allow the use of water flows from drainage wells or a sump for the safe, non-explosive destruction of the massif. The purpose of the article is to highlight the results of the experiments performed on the destruction of martite ores by the method of borehole hydraulic destruction by their stratification. Determination of the dependences of the output of the ore fraction on the pressure of the water jet and the direction of their cutting.