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Fundamental and applied issues of mining

2019 year, number 1

STUDY OF PHYSICAL PROPERTIES AND ROCK FAILURE CHARACTER OF ZHDANOVSKY DEPOSIT (JSC KOLA MMC) IN CONDITIONS OF UNIAXIAL AND TRIAXIAL COMPRESSION

A. V. Zemtsovsky, N. N. Kuznetsov, A. K. Pak
Mining Institute, Kola Science Center, Russian Academy of Sciences, Apatity, Russia
Keywords: Ждановское месторождение, хрупкость, упругая энергия, динамическое разрушение, лабораторные испытания, горные породы, Zhdanovsky deposit, brittleness, elastic energy, dynamic fracture, laboratory tests, rocks

Abstract

The study results of rock properties of Zhdanovsky copper-nickel deposit are presented in the article. The deposit is located in Pechenga district of the Murmansk region. The main purpose of the work was to determine the nature of the elastic energy accumulation in the rock samples studied and to assess their proneness to dynamic uncontrolled failure. Based on the performed experimental studies, the mechanical properties and energy parameters of the samples under uniaxial and triaxial compression conditions were determined. The analysis of the results has shown that the studied rocks belong to the hard rocks which are prone to dynamic failure. It is one of the conditions for classifying the deposits as rockburst hazardous.