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Fundamental and applied issues of mining

2019 year, number 2

MODIFICATION OF THE BRITLENESS CRITERIA TAKING INTO ACCOUNT MODULI OF ELASTICITY AND WEAKENING (AFTER TARASOV) IN TERMS OF ANGULAR COEFFICIENTS

P. A. Tsoi1,2, O. M. Usol'tseva1
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk State Technical University, Novosibirsk, Russia
Keywords: Горные породы, коэффициент хрупкости, модуль упругости, модуль спада, Hard rocks, brittleness coefficient, modulus of elasticity, modulus of weakening

Abstract

This paper presents a modification of the Tarasov’s criterion for the brittleness degree considered in terms of angular coefficients inferred from the stress-strain diagram.