Author(s)

V. N. Oparin, O. M. Usoltseva^*, P. A. Tsoi, V. N. Semenov

Institute of Mining, Russian Academy of Sciences, Siberian Branch, Novosibirsk, Russia.

The aim of this study was to analyze distribution and development of stress-stress state in structured rock specimens subject to uniaxial and biaxial loading to failure using digital speckle correlation method. Within the experimental analysis of wave processes in the block-hierarchy structure of geomedia (uniaxial and biaxial compression and shearing of prismatic geomaterial specimens), the authors revealed the fact of initiation of low-frequency micro-deformation processes under slow (quasi-static) disturbances. The estimation of the deformation-wave behavior of geomaterials as the “summed” contributions made by elements of the scanned surfaces with different-oriented (in-phase and anti-phase) oscillations has been performed using the energy approach that is based on the scanning function R, analogous to the “center of mass” in the classical mechanics.

Laboratory Experiment, Digital Speckle Correlation Method, Rock Mass, Hierarchical Block Structure, Microstrains, Deformation-Wave Processes

Oparin, V. , Usoltseva, O. , Tsoi, P. and Semenov, V. (2014) Evolution of Stress-Strain State in the Structural Heterogeneities Geomaterials under Uniaxial and Biaxial Loading. Journal of Applied Mathematics and Physics, 2, 1039-1046. doi: 10.4236/jamp.2014.212118.