Effective Range of Internal Dumping in Opencast Mining in Steep Mineral Deposits
G. G. SAKANTSEV1, V. I. CHESKIDOV2
1Institute of Mining, Ural Branch, Russian Academy of Sciences, ul. Mamina-Sibiryaka 58, Ekaterinburg, 620219 Russia
2Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: deep open pit mine, mined-out void, internal dump, access roadways
Abstract
Under discussion are the issues of driving secondary access roadways without pushing ultimate pitwall limits in steep deposits with internal dumping. The calculation scheme and correlation analysis of key elements of the resource-saving technology are presented. Regressional relationships are obtained for length of an open pit mine bottom, specific weight of internal dumping and the open pit mine parameters. The article specifies the effective range of the developed technology.
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