Determination of yield of fractional material bydestruction of martiteore by water jets depending on the direction of their cutting

Purpose. Highlight the main results of experiments performed on destruction martite ores by method borehole hydraulic their layering. Since, as a result analysis literary sources, it was established that some deposits Kryvyi Rihiron ore basin are suitable for hydro monitor excavation.Consideration introducing technologies hydromechanization mining operations in conditions is topical issue. The methods. Using experimental installations conduct layers ores, gradually increasing water pressure and determine qualitative fractional yield raw materials. Mathematical processing obtained construction dependencies based experiments. Findings. Showing sequence experiment, creation summary tables with illustrated graphs study determining material during jets. originality. Experiments have shown fraction using fracture depends both stratification ores. Ores break down along layer more prone to overgrinding, into cross less likely to. Therefore, output fractions values can be controlled. Practical implementation. development floodingdeposits rich iron classical, unsuitable methods accompanied large number losses materials or impossibility developing deposit, because an alternative classical drilling blasting massif rock proposed technology hydromechanization.The use will allow flows from drainage wells sump safe, non-explosive massif. This increase safety operations, well reduce seismic impact workings before start stope extraction.