Comprehensive Dilation Angle Model for Strain-Softening and Brittle Rocks

Abstract

Abstract Triaxial compression tests are conducted to determine the dilation behavior of five different rocks, namely, shaly sandstone, fine-grained sandstone (weak), coarse-grained sandstone (weak), fine-grained sandstone (strong), and granite. After ... Practical Applications The examination of rock dilation and deformation possesses substantial practical implications in rock engineering. Most popular failure criteria, like Mohr–Coulomb and Hoek–Brown, assume the constant dilation angle when rock mass ...