Laboratory studies of geomechanical properties of deep-level rocks
Abstract
The article describes the lab-scale tests of the deformation and strength characteristics of rocks extracted from great depths. Samples of high-grade ore, cupriferous ore, disseminated ore, hornfel and limestone were subjected to tension, uniaxial compression and triaxial compression, and the failure envelopes were plotted. The change in the value of cohesion determined from Mohr’s envelopes in tension and uniaxial compression as well as in tension and triaxial compression is analyzed. The values of relative changes in cohesion and in uniaxial and triaxial compression strengths obey strong correlation.
- Publication:
-
IOP Conference Series: Earth and Environmental Science
- Pub Date:
- April 2019
- DOI:
- 10.1088/1755-1315/262/1/012081
- Bibcode:
- 2019E&ES..262a2081U