A new analytical solution for horizontal vibration of floating pile in saturated soil based on FSSP method

Abstract

This paper presents a novel analytical model based on a fictitious saturated soil pile (FSSP) model, Biot's theory, and the Novak plane strain model for analyzing the horizontal vibration of a floating pile in saturated soil. First, the horizontal displacement of the saturated soil and horizontal resistance to the pile were determined using the separation variable method and potential functions. Next, the horizontal vibration response of the pile was obtained by deriving differential equations specific to the FSSP, considering its complete contact with the solid pile. The analytical model was then validated by reducing the proposed solution and comparing it with solutions presented in the literature. Finally, the effects of various soil parameters, such as the FSSP length, damping ratio, elastic modulus, and porosity, on the horizontal vibration response of the floating pile were analyzed.