DETERMINATION OF JOINT ROUGHNESS COEFFICIENT FOR ROCK SPECIMENS FORMED UNDER UNIAXIAL COMPRESSION
P. A. Tsoi, O. M. Usoltseva
Chinakal Institute of Mining, Siberian Branch Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Joint roughness coefficient, uniaxial compression, rocks, discontinuity profiles, 3D-scanning
Abstract
Demonstration results of calculating joint roughness coefficient (JRC) for rock specimens are presented depending on the position of the discontinuity profile under uniaxial load conditions. To obtain these results, shear failure surfaces of test specimens were scanned. Using additional software processing, the surfaces were cut into multiple profiles in the direction of load applied. Depending on the shear cut, the JRC was calculated for each profile, its average value was determined for the entire discontinuity surface, which was recommended for estimating roughness.
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