Excess pore water pressure of soil before and during pile installation with finite element and finite difference approach

Consolidation being a function of stress, strain, and time, pore water pressure distribution should be mathematically analysed using differential equations and finite element solutions. Additionally, it is currently uncommon to compare soil pore water pressure utilising finite difference and 3D finite element analysis, as well as to compare pore water pressure before and during pile construction. By comparing the finite difference and 3D finite element approaches, this study intended to advance prior research and obtain knowledge of the behaviour of soil against pore water pressure during the consolidation phase prior to pile installation till the pile installation process. The maximum soil excess pore water pressure is reduced by the finite element technique while maintaining the same excess pore water pressure distribution as the exact and Crank-Nicolson methods. The maximum pore water pressure is decreased as a result of soil stiffness. The maximum excess pore water pressure only decreased after soil consolidation in the second and third years, while the form of the distribution of soil excess pore water pressure remains unchanged during pile construction.