Vertical vibration of an end bearing pile interacting with the radially inhomogeneous saturated soil

This study aims at portraying the vertical vibration characteristics of an end bearing pile interacting with the saturated soil that is of distinctly inhomogeneous behavior in the radial direction due to the construction disturbance. The pile is considered a one-dimensional bar. The saturated soil is considered by the Biot's twophase linear theory and its radial inhomogeneity is simulated by the gradual variation of soil properties radially in a linear way. In practical terms, it is partitioned into a number of vertical ring-shaped zones in the radial direction with the soil properties approximately remain the same within the same soil zone. The pile-soil dynamic interaction is then obtained by solving the governing equations of each soil zone and is substituted into the governing equation of the pile to derive the analytical solution for the dynamic impedance at the pile head. The present solution is validated by comparing with other solutions. Meanwhile, it is employed to investigate the effect of the construction disturbance on the vertical vibration of the pile for different pile-soil parameters.

Automated summary

This study focuses on portraying the vertical vibration characteristics of an end bearing pile interacting with saturated soil of distinctly inhomogeneous behavior, with a particular emphasis on the effect of construction disturbance on the pile vibration.