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Geomechanics and Engineering Volume 32, Number 1, January10 2023 , pages 021-34 DOI: https://doi.org/10.12989/gae.2023.32.1.021 |
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Single piles under cyclic lateral loads - Full scale tests and numerical modelling |
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Hocine Haouari and Ali Bouafia
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| Abstract | ||
| In order to analyze the effect of the cyclic lateral loading on the response of a pile-soil system, a full-scale single steel pile was subjected to one-way cyclic loading. The test pile was driven into a bi-layered soil consisting of a normally consolidated saturated clay overlying a silty sandy layer, the site being submerged by water up to one meter above the mudline in order to reproduce the conditions of an offshore pile foundation. The aim of this paper is to present the main results of interpretation of the cyclic lateral tests in terms of pile deflections, bending moment, and cyclic P-Y curves. From these latter an absolute secant reaction modulus EAS,N was derived and a simple calculation model of the test single pile is proposed based on this modulus. Two applications of the proposed model are carried out, one with a 2D finite element modelling, and the second with a load transfer curves-based method. | ||
| Key Words | ||
| absolute secant modulus of lateral reaction; bi-layered soil; cyclic lateral loading; full-scale test; P-Y curves; single pile | ||
| Address | ||
| Hocine Haouari and Ali Bouafia: Laboratory NEIGE, Department of civil engineering, Faculty of Technology, University of Blida, Route de Soumâa, P.O.Box 270, R.P Blida, 09000, Blida, Algeria | ||