An empirical relation to calculate the proper burden in blast design of open pit mines based on modification of the Konya relation

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► We formulate the burden parameter in Chadormalu iron ore mine.
► The base of this equation is a modification of the relation proposed by Konya.
► Designing and optimizing blasting in the southern mass of Chadormalu mine using this relation.
► We generalize the obtained equation to other open pits in Iran.