Long-term triaxial testing of Opalinus Clay, P-orientation, sandy facies

This data set describes a long-term (> 4 yr) rock mechanics experiment of Opalinus Clay (sandy facies) using a triaxial apparatus. The sample is consolidated and fully saturated. The bedding orientation is parallel to the main axis of the sample (P-orientation). Confining stress, axial stress and pore pressure are changed multiple times in order to investigate dilatancy, pressure diffusion coefficients and Young's modulus.