Triaxial Compression Test in Rock | Geoengineer
Figure 1: The principal stresses applied in a cylindrical rock sample in triaxial testing (σ1> σ2= σ3) The confining pressure is determined and remains constant during a test. The sample is initially loaded isotropically until the principal stresses are equal to the predetermined confining pressure. Then, the axial stress, σ 1, increases at ...