RUBBLE CONCRETE FILLING IN UNDERGROUND MINES OF RUSSIAN FAR NORTH
Yu. N. Shaposhnik, S. A. Neverov, A. A. Neverov
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Enclosing rocks, rubble concrete filling, laying technology, laboratory tests, strength, mining system, parameters
Abstract
The technology of laying rubble concrete filling masses is considered. The properties of artificial pillars have been determined depending on the enclosing rocks extracted during the excavation of mine workings at the Veduginskoye and Perevalnoye deposits. Based on the results of numerical modeling of stress-strain state of the rock mass during the development of chamber mining system with ore breaking from sublevel workings and formation of rubble concrete pillars, main design features of the technology of ore deposit extraction are determined. Safe parameters of the mining system with a combined backfill for the development of the Veduginskoye field are recommended, taking into account the depth of stoping.
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