Study on mechanical properties and fracture modes of sandstone with cracks under triaxial compression

This study examines the mechanical properties and fracture modes of sandstone with single double cracks under varying confining pressures through triaxial compression tests. The stress–strain curves, parameters, both intact cracked are analyzed based on experimental results. finds that presence has a significant impact sandstone, greater damage observed an increase in number cracks. peak strength strain rock sample crack angle. mode is influenced by angle pressure. When small, combination shear tensile failure, while large results failure. Moreover, as pressure increases, degree to also increases.