Change in deformation modulus and strength of meta-siltstone depending on specimen size

Geodynamics and Stress State of the Earth's Interior 2017

Tsoy, P.A.^1,2 ; Usoltseva, O.M.^1 ; Persidskaya, O.A.^1 ; Semenov, V.N.^1 ; Sivolap, B.B.^1

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia^1

Novosibirsk State Technical University, Novosibirsk, Russia^2

关键词: Deformation modulus;    Empirical relationships;    Mohr-Coulomb;    Rock materials;    Specimen sizes;    Strength behavior;    Ultimate strength;    Uni-axial compression;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/134/1/012066/pdf
DOI  :  10.1088/1755-1315/134/1/012066

来源: IOP

【 摘 要 】

The meta-siltstone samples of two scales are subjected to uniaxial compression and split tensile strength testing. The empirical relationships between the specimen size, deformation modulus and ultimate strength are determined. The strength behavior of the studied rock material was described using the Mohr-Coulomb envelopes.