A commercial-scale trial of gold extraction from stripped barren ore by heap leaching process;

The ore depletion reasons analysise of sub-level caving method;

Through founding the mathematics model in which the profit is aim function and depletive rate is independent variable, the effect of ore depletion on mine's economic benefit is analyzed quantitatively In order to control and decrease the ore depletion, the technology of geology and mining should be strengthened, and also with the field managemen

The article analgzes the reasons of influening dilution in the course of design,mining and ore drawing, put forward some measures of decreasing ore dilution of shallowhole shrinkage metho