Analytical model of large-diameter viscoelastic floating pile and application in pile low-strain integrity testing

Meng, Kun and Su, Huifeng 2022. Analytical model of large-diameter viscoelastic floating pile and application in pile low-strain integrity testing. Soil Dynamics and Earthquake Engineering 158 , 107296. 10.1016/j.soildyn.2022.107296

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Abstract

Based on a three-dimensional fictitious soil pile model, a rigorous analytical model of a large-diameter viscoelastic floating pile is developed by considering the material damping of the pile and the soil. Subsequently, closed-form solutions of the pile dynamic response of this analytical problem are derived. The rationality and accuracy of the proposed model and its relevant theoretical solutions are verified by comparison with the results of previous studies. Finally, parametric analyses are further conducted to investigate the effects of the radial direction position, length of the fictitious soil pile, material damping coefficient of the pile, and soil-to-pile stiffness ratios on the dynamic response of the pile. Based on the obtained results, an appropriate method to eliminate high-frequency interferences and evaluate the material damping coefficient of a pile in actual pile low-strain integrity testing is established. Furthermore, the proposed methodology affords legible theoretical insights into the wave propagation in large-diameter viscoelastic floating piles.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	Elsevier
ISSN:	0267-7261
Date of Acceptance:	5 April 2022
Last Modified:	23 Jun 2023 13:41
URI:	https://orca.cardiff.ac.uk/id/eprint/160534

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