Inclusion of inhomogeneous deformation and strength characteristics in the problem on zonal disintegration of rocks

Geodynamics and Stress State of the Earth's Interior 2017

Chanyshev, A.I.^1,2 ; Belousova, O.E.^1

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

Novosibirsk State University of Economics and Management, Novosibirsk, Russia^2

关键词: Heterogeneous rock mass;    Inhomogeneous deformation;    Rock disintegrations;    Stress and deformation;    Tension and compression;    Ultimate strength;    Underground excavation;    Zonal disintegration;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/134/1/012011/pdf
DOI  :  10.1088/1755-1315/134/1/012011

来源: IOP

【 摘 要 】

The authors determine stress and deformation in a heterogeneous rock mass at the preset displacement and Cauchy stress vector at the boundary of an underground excavation. The influence of coordinates on Young's modulus, shear modulus and ultimate strength is shown. It is found that regions of tension and compression alternate at the excavation boundary - i.e. zonal rock disintegration phenomenon is observed.