Features of Failure of Brittle Rock Specimens under Uniaxial Compression, Considering Characteristics of Grains
V. P. EFIMOV
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
Keywords: прочность, трещиностойкость, разрушение горных пород, структурный параметр, минеральное зерно, strength, fracture resistance, rock failure, structural parameter, mineral grain
Subsection: ROCK FAILURE
Abstract
The uniaxial compression testing of brittle rock specimens show that the specimens fail in the form of a columnar fracture along the axis of loading. The test data are compared with the characteristic quantities of tensile strength. Failure of the specimens is modeled with regard to features of grains, which allows assessment of tensile/compressive strength ratio.
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