Vibrodriveability analysis on sandy soils

This thesis aims to put some light on this installation method. This phenomenon will be modelled using Allwave-PDP. A fully developed software from Allnamics, with proven reliability and 40 years of experience. First chapter will describe the theoretical background on which vibratory analysis and simulations will be performed. Based on Stress wave theory and method of characteristics, measured stress waves will propagate through the pile interacting with the soil. Understanding this vibrated soil behavior will increase predictions accuracy. Secondly, this thesis will target the unknowns, presenting, mainly, soil parameters. To define those parameters, formulas and correlations will be provided along with the influence that they could have within method of characteristics models. So far, unpredicted response to vibrodriving and unstable vibrator performances leave vibratory driving analysis without a clear reference framework from which improve predictions. Based on previous chapter, a parametric analysis will be performed, along with a new methodology, to anticipate this irregular vibratory response. Finally, this methodology will be tested with two real cases in order to confront it. As conclusion, this thesis will propose guidelines for vibrodriving and recommendations for further researches.