METHODS FOR INCREASING HOLE DEPTH AT A CONSTANT MINING SECTION
O.SH. Yormatov3 d -20KI group students of the Almalyk branch of the Tashkent State Technical University, Almalyk, UzbekistanU.T. Toshtemirovdoctor of philosophy in technical sciences, Almalyk branch of the Tashkent State Technical University, Almalyk, Uzbekistan
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<em>In the world, most of the work in coal and ore deposits is carried out by drilling and blasting. In the practice of mining, practically the only method of crushing rocks is the method of blasthole and borehole charges, which should be given special attention to increase the efficiency of blasting operations.</em>
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