By changing this parameter individually while the deposit-related parameters such as ore distribution ore slope and ore thickness and mine-related parameters such as the mining method the mine. Https Www Ijstr Org Final Print Sep2015 Optimization Of Blasting Design Parameters On Open Pit Bench A Case Study Of Nchanga Open Pits Pdf.
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Bench parameters in mining. Pdf Assessment Of Powder Factor In Surface Bench. In hard rock mining blasting is the most productive excavation technique applied to fragment insitu rock to the required size for efficient loading and crushing. The bench height is a mine-related parameter that can be studied using a simple geometrical model of the deposit.
Table 1 is the calculation of the mining cutoff grade for a copper project with the following parameters. 30 ktd 33000 st pd of ore mined for 20years 300000000 capital cost include replacement capital 100 mining cost per ton of ore 095 mining cost per ton of waste 300 processing cost per ton of ore 100 general and administrative GA cost per ton of ore 075 freight smelter and refining FSR cost per kilogram of copper 85 overall copper. In order to blast the insitu rock to the desired.
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