Integrated studies into characteristics of physical fields using discontinuous geomedium models under external loading

Geodynamics and Stress State of the Earth's Interior 2017

Usoltseva, O.M.^1 ; Vostrikov, V.I.^1 ; Tsoy, 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 stages;    Dynamics of evolution;    External loading;    Fracture zone;    Laboratory studies;    Microseismicity;    Physical field;    Simultaneous measurement;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/134/1/012068/pdf
DOI  :  10.1088/1755-1315/134/1/012068

来源: IOP

【 摘 要 】

The article presents the laboratory study of deformation in artificial layered geomaterial samples down to failure with the simultaneous measurement of stresses, strains, micro-strains and signals of microseismic emission. The analysis of the synchronized experimental data made it possible to determine features of change in the microseismicity parameters and micro-strain fields in the samples depending on the deformation stage, and also to reveal the dynamics of evolution of microfailures and the main fracture zone.