Similitude law for shallow foundation on cohesionless soils using 2D finite element analysis

Abstract

This paper investigated the similitude law for strip footing resting on cohesionless soils. 2D finite element analyses were employed to estimate the ultimate unit bearing pressure of strip footing in three different conditions: laboratory model test under 1-g, centrifuge test under n-g, and full scale test under 1-g. The Hardening Soil model was used for cohesionless soil to account for the increase in shear strength and stiffness with depth. Based on the numerical results, the axial unit bearing pressure-settlement curves were collected. The ultimate unit bearing pressures and settlements for three simulations were compared, and stress scale ratio and geometric scale ratio were drawn such that ultimate unit bearing pressure in full scale test could be estimated from laboratory test results.

Elastoplastic constitutive model for granular soil based on hyperbolic failure surface

“…This example represents numerical simulation of a strip footing resting on cohesionless soil taken from the literature [53].…”