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Erschienen in:
2023 | OriginalPaper | Buchkapitel
P-Y Curves for Piles in Sand Based on the SPT Test–Parametric Study and Practical Recommendations
verfasst von : Abdesselem Laouedj, Ali Bouafia
Erschienen in: 5th International Conference on New Developments in Soil Mechanics and Geotechnical Engineering
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Abstract
ULS and SLS limit state design of pile foundations under lateral loads is often undertaken on the basis of the P-Y curves concept. Since more than half a century, the methods of P-Y curves have been subject of an extensive research work worldwide. Nowadays, the P-Y curves parameters, namely the reaction modulus and the soil lateral resistance, are derived by correlation with geotechnical parameters measured by laboratory test or in-situ tests like the cone penetration test. The contribution of the standard penetration test SPT to the direct construction of P-Y curves is however not demonstrated in the literature. The paper aims at presenting an original semi-empirical method of construction of the P-Y curves along the pile directly based on the N-value measured by the SPT. On the basis of a detailed parametric study it was highlighted some key factors affecting the pile load–deflection behavior.