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analysed under more practical, in-situ conditions. The properties as well as the penetration process were kept identical to the experimental set-up. However, a finer mesh was developed to establish the convergence of the results obtained from utilizing the coarse mesh for this case. It was found that the fine mesh predicted a higher value of changes in both the effective radial stress and the pore pressure close to the pile, when compared to the coarse mesh. This was attributed to the fact that the fine mesh was able to capture the response more accurately due to more elements around locations of high gradients. The final residual effective stress values were higher than that in-situ by an average of at the end of the driving and about 4.0 Cu at the end of final consolidation. This indicates an increase in the undrained shear strength of the soil around a driven pile, a beneficial factor reported by several previous inves-tigators. The entire finite deformation FE algorithm was introduced into an existing FE Fortran program called CRISP (Gunn and Britto, 1984) and is capable of analysing general problems of three-dimensional, two-dimensional plane strain or axisymmetry.
DOI link for analysed under more practical, in-situ conditions. The properties as well as the penetration process were kept identical to the experimental set-up. However, a finer mesh was developed to establish the convergence of the results obtained from utilizing the coarse mesh for this case. It was found that the fine mesh predicted a higher value of changes in both the effective radial stress and the pore pressure close to the pile, when compared to the coarse mesh. This was attributed to the fact that the fine mesh was able to capture the response more accurately due to more elements around locations of high gradients. The final residual effective stress values were higher than that in-situ by an average of at the end of the driving and about 4.0 Cu at the end of final consolidation. This indicates an increase in the undrained shear strength of the soil around a driven pile, a beneficial factor reported by several previous inves-tigators. The entire finite deformation FE algorithm was introduced into an existing FE Fortran program called CRISP (Gunn and Britto, 1984) and is capable of analysing general problems of three-dimensional, two-dimensional plane strain or axisymmetry.
analysed under more practical, in-situ conditions. The properties as well as the penetration process were kept identical to the experimental set-up. However, a finer mesh was developed to establish the convergence of the results obtained from utilizing the coarse mesh for this case. It was found that the fine mesh predicted a higher value of changes in both the effective radial stress and the pore pressure close to the pile, when compared to the coarse mesh. This was attributed to the fact that the fine mesh was able to capture the response more accurately due to more elements around locations of high gradients. The final residual effective stress values were higher than that in-situ by an average of at the end of the driving and about 4.0 Cu at the end of final consolidation. This indicates an increase in the undrained shear strength of the soil around a driven pile, a beneficial factor reported by several previous inves-tigators. The entire finite deformation FE algorithm was introduced into an existing FE Fortran program called CRISP (Gunn and Britto, 1984) and is capable of analysing general problems of three-dimensional, two-dimensional plane strain or axisymmetry.
ABSTRACT