Pre-formed piles are normally installed into the ground using high energy impact or vibratory hammers. Part of the energy is absorbed in advancing the pile, and much of the remaining energy is transmitted into the ground in the form of outgoing vibrational waves. The current study is towards developing a computational procedure to model the outgoing waves, to calibrate the waves against existing site measurements, and then to expand the model by including simple structural forms so as to estimate structure response, including dynamic soil-structure interaction. This paper reports the stage of the work which generates ground vibrations and some calibration against site data. For impact hammers, the analysis has to be tackled in three phases, of hammer/pile impact, pile/soil interface effects, and finally the transient outgoing P, S and R waves. For vibro-driving a different procedure is required. A two stage approach makes an estimate of rigid body oscillation of the pile within a localised soil framework, and then the boundary disturbance is applied to an analysis of the wider soil area for computation of the sinusoidal wave disturbances. Two case studies are presented.
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