The bearing capacity of a single pile in granular soil was analyzed piles under vertical loads in the study of the mechanism of shaft friction. The effect of the deformation modulus on the bearing capacity of the single pile in granular materials, and especially in sand, was examined. By using the FLAC program for the finite element analysis it was possible to predict quite accurately the load capacity and load deformation behavior of the pile, for both rigid and deformable piles. The specific results have shown that bearing capacity of the pile changes from 860 to 1025 tones while the field-loading test reached the point 900 tones. The influence of the load on development of stress and displacement fields around the pile was examined as well. A review of current theories for piles in granular soils, practical methods for calculating the bearing capacity and the numerical analysis presented in the paper enable a quick estimation of the bearing capacity of a single pile in granular soils.
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