ABSTRACT
It is proven that the sandy soils exhibit the non-linear trend in the shear stress-normal stress space. This study discusses the assessment of the UBC of surface strip footing on sandy soils concerning size effect and relative density subjected to centric vertical and uniform surcharge loads. The RPFEM, based on the shear strength property of Toyoura sand, is employed in analyses. The findings are consonant with the centrifuge tests in the published references. The results are compared with the existing guidelines, and the modified UBC formula is proposed.
