Simple model for prediction of vibratory driving and experimental data analysis of vibro-driven probes an sheetpiles

During the first part of the &s;Vibrofonçage&s; French national project, experimental data has been given by the CSTC from the HYPERVIB project and by ARBED from the SIPDIS project. Two type of models has been proposed. At first, a simple model assuming the pile is a rigid body, gives an easy graphic analysis and simple criteria for refusal prediction. However, more sophisticated model are necessary for experimental data analysis. Based on classical solutions for dynamic test of piles, a 1D finite elements model is described. Characteristics of vibro driving analysis are pointed out. Examples are given from SIPDIS data. General conclusions give advice on experimental data analysis and evaluation of dynamic soil resistance.