Effects of structure on deformation and strength characteristics of transversely isotropic man-made geomaterials

All-Russian Conference on Challenges for Development in Mining Science and Mining Industry devoted to the 85th anniversary of Academician Mikhail Kurlenya

Usoltseva, O.M.^1 ; Tsoi, P.A.^1,2 ; Semenov, V.N.^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 and strength;    Elastic characteristic;    Hoek Brown failure criterion;    Hoek-brown criterion;    Strength and deformation characteristics;    Strength parameters;    Theoretical modeling;    Transversely isotropic;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/53/1/012009/pdf
DOI  :  10.1088/1755-1315/53/1/012009

来源: IOP

【 摘 要 】

The laboratory tests on uniaxial and triaxial (Karman scheme) compression of bedded specimens (made of equivalent man-made geomaterial, meta-siltstone and shale) has allowed deriving relations between the strength and deformation characteristics and the bedding angle of the specimens. The elasticity and strength are assessed in accordance with the theoretical model by Salamon-Tien and the Hoek-Brown failure criterion. For the bedded geomedia (man-made geomaterial), the Salamon-Tien model yields a satisfactory estimate of the elastic characteristics (elasticity modulus, Poisson's ratio). Based on the use of the Hoek-Brown criterion, the authors have derived a strength parameter independent of the lateral pressure.