Effect of loading direction on the critical characteristic strength and energy evolution of quartz mica schist and microscale mechanisms

In this study, micro and uniaxial compression tests were performed on two types of quartz mica schist. The effect of schistosity orientation on their mechanical properties was discussed in terms of the critical characteristic strength (CCS) and energy. Furthermore, the microscale mechanism of the mechanical properties of schistose rocks was revealed. In view of the good correspondence between the energy evolution curves and stages of rock...