Volume 6, Issue 3 (September 2008)
IJCE 2008, 6(3): 174-183 |
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Feizee Masouleh S, Fakharian K. Verification of Signal Matching Analysis of Pile Driving Using a Finite Difference Based Continuum Numerical Method. IJCE 2008; 6 (3) :174-183
URL: http://ijce.iust.ac.ir/article-1-177-en.html
URL: http://ijce.iust.ac.ir/article-1-177-en.html
Abstract: (12070 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.
Keywords: pile driving analysis, stress wave propagation, continuum numerical model, finite difference method, signal matching analysis, viscous damping, radiation damping
Type of Study: Research Paper |
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