TOE RESISTANCE DURING PILE VIBRATORY PENETRATION

The purpose of this article is to compare the behavior of soil observed in a laboratory experiment, which simulates the vibratory driving of a pile with results of the Vibrive II model. In the laboratory experiments, a model sheet-pile was driven in dry sand using a vibrator. The toe and shaft resistance were measured continuously during driving. These values are compared with the static resistance of the soil evaluated using a cone penetration test (CPT). The Vibrive II model predicts the penetration speed of a pile during vibratory driving. The behavior of the soil is simulated with a visco-elasto-plastic model. The toe and shaft resistances calculated using this model are compared with the measured values from the laboratory experiment. Based on this comparison, recommendations are made for improvement of the Vibrive II model.