Abstract: (11982 Views)
A finite-difference based continuum numerical model is developed for the pile-soil dynamic response
during pile driving. The model is capable of simulating the wave propagation analysis along the pile shaft and
through the soil media. The pile-soil media, loading and boundary conditions are such that axisymmetric
assumption seems to be an optimized choice to substantially reduce the analysis time and effort. The
hydrostatic effect of water is also considered on the effective stresses throughout the soil media and at the pilesoil
interface. The developed model is used for signal matching analysis of a well-documented driven pile. The
results showed very good agreement with field measurements. It is found that the effect of radiation damping
significantly changes the pile-soil stiffness due to the hammer blow. The pile tip response shows substantial
increase in soil stiffness below and around the pile tip due to driving efforts.
Type of Study:
Research Paper |