Bearing Capacity of Ring Foundations on Anisotropic and Heterogenous Clays: FEA, NGI-ADP, and MARS

Abstract Axisymmetric solutions for the bearing capacity of ring foundation resting on anisotropic and heterogenous clays are presented in this paper using finite element analysis (FEA). The NGI-ADP model PLAXIS FEA, a widely used soil model, is adopted to study stability responses foundations, with special consideration given effects increasing undrained shear strength depth. Numerical results formulated terms dimensionless number (bearing ratio) that function three input parameters: namely, ratio inner outer radius, gradient ratio, ratio. influence each parameter investigated design charts failure mechanisms, they scored by relative importance indexes multivariate adaptive regression splines (MARS) model—a machine learning approach. A highly accurate equation generated from MARS proposed as an effective tool engineering practitioners.