Mechanical Responses of a Deeply Buried Granite Exposed to Multilevel Uniaxial and Triaxial Cyclic Stresses: Insights into Deformation Behavior, Energy Dissipation, and Hysteresis

This article presents the results for cyclic uni/triaxial tests on deeply seated granite samples drilled from a −915 m deep tunnel in Sanshandao (SSD) gold mine. The monotonic and were carried out to observe mechanical responses of under different loading regimes. disparities concerning strain evolution compressive strength considering uniaxial triaxial are presented. Deformation behaviour, dissipated energy, hysteresis documented evaluated. Quantitative correlations between stress levels revealed. amount energy transformation during is determined. impacts confining pressure level ultimate strain, dissipation, stress-strain phase shift subjected paths strategies summarised, corresponding interpretations given clarify differences behaviour encountered distinct methods.