RESEARCH ON RELATIONSHIP BETWEEN ORE DLUTION AND RECOVERY IN ORE DRAWING IN SUBLEVEL CAVING MINING

This paper analyses the relationship between ore dilution and recovery in ore drawing in sublevel caving mining without bottom pillars, and concludes that every sublevel ore recovery after drawing is neerly same. Research shows that main cause of ore dilution in sublevel caving mining is tlnrational cut-off grade drawing. Non-dilution ore drawing is most ideal drawing mede.