Numerical Analysis of Piled-Raft Foundations on Multi-Layer Soil Considering Settlement and Swelling

Numerical modelling can simulate the interaction between structural elements and soil continuum in a piled-raft foundation. The present work utilized two-dimensional finite element Plaxis 2D software to investigate settlement, swelling, behavior of foundations during settlement swelling on various profiles under load combinations geometry conditions. field laboratory testing have been performed determine parameters necessary for numerical modelling. Mohr–Coulomb model is soil, as this requires very few input parameters, which important practical geotechnical soil. From study, it was observed that, soft has less stiffness, un-piled raft not sufficient resists higher loads exceeds limits settlement. Piled increases carrying capacity lower layer stiffness where pile rests, decreasing significant Further, effects (L/d) (s/d) Krs are also discussed, detailed numerically different scenarios. expansive simulated with an application positive volumetric strain. above-mentioned parametric study similarly implemented heaving foundation