The Generalized Mohr-Coulomb Failure Criterion

With the construction of supertall buildings such as high earth dams, linear envelope Mohr-Coulomb (M-C) failure criterion fitted to lower confined pressure would significantly underestimate loading capacity foundations, causing a huge increase in amount earthwork. Given that M-C has dominated stability analysis geotechnical structures, it is proposed this study remain invariant form but cohesion c and frictional factor f be related coefficient intermediate principal stress b, called Generalized (GMC) criterion. In other words, are both functions written c(b) f(b). simplest way, GMC for soils, true three-dimensional criterion, can established by using piece conventional triaxial apparatus. The non-smooth strength surface like its version. However, we prove from tests characteristic theory tensors surfaces space should per se b = 0 or 1. Comparisons with prominent criteria indicate fits test data best.