FORECAST OF ORE RECOVERY AND DILLUTION DURING ORE DRAWING FROM A BLOCK FOR LEVEL FORECED CAVING MINING

For caving mining, must optimize the ore drawing regime and structure parameters of a block with the aid of forecasting ore recovery and dillution during ore drawing from the block under different ore drawing regimes and structure parameters of the block. In combination of physical simulating with random simulating of ore drawing can reproduce practical ore drawing better. Newly proposed ore drawing regime of a block with lowering peaks to several altituds sometimes is economic optimum and does not ask to open and close drawpoints by the most times. During optimization of an ore drawing regime and structure paramenters of a block, ought to carry on ore drawing simulating and economic calcultating by natural and social conditions of the block.