A Numerical Investigation to Determine the p–y Curves of Laterally Loaded Piles

This paper focuses on a numerical approach to finding the p–y curves for laterally loaded piles. The Drucker–Prager plastic model is employed and implemented within a finite element MATLAB code. The pre- and post-processing code for Gmsh and related numerical tools are established...

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Autores principales:	Kexin Yin, Lianghui Li, Eugenia Di Filippo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	laterally loaded pile <i>p–y</i> curve soil-pile interface Drucker–Prager model Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/971ed633da9c448a82ac0348f801107f
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id	oai:doaj.org-article:971ed633da9c448a82ac0348f801107f
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spelling	oai:doaj.org-article:971ed633da9c448a82ac0348f801107f2021-11-11T18:19:12ZA Numerical Investigation to Determine the <i>p</i>–<i>y</i> Curves of Laterally Loaded Piles10.3390/math92127832227-7390https://doaj.org/article/971ed633da9c448a82ac0348f801107f2021-11-01T00:00:00Zhttps://www.mdpi.com/2227-7390/9/21/2783https://doaj.org/toc/2227-7390This paper focuses on a numerical approach to finding the <i>p–y</i> curves for laterally loaded piles. The Drucker–Prager plastic model is employed and implemented within a finite element MATLAB code. The pre- and post-processing code for Gmsh and related numerical tools are established as well. The <i>p–y</i> curve results from this new approach have been validated and compared to the typical design equations of API (American Petroleum Institute) and Matlock. The validation reveals that the code leads to lower <i>p–y</i> curves than the API and Matlock equations when the horizontal displacement is less than 0.35 times the diameter of the pile (<i>B</i>). A sensitivity analysis of the number of elements and the interface thickness is presented. The results indicate that the obtained <i>p–y</i> curves are independent of the two factors. Finally, the influence of clay content on the <i>p–y</i> behavior is investigated by the implemented MATLAB code. When <i>y</i> < 0.15<i>B</i>, the same lateral capacity values are resulted at clay contents of 27.5% and 55%, and they are higher than the ones for 0% clay content. The <i>p–y</i> curves show a decreasing trend with increasing clay content after <i>y</i> > 0.15<i>B</i>.Kexin YinLianghui LiEugenia Di FilippoMDPI AGarticlelaterally loaded pile<i>p–y</i> curvesoil-pile interfaceDrucker–Prager modelMathematicsQA1-939ENMathematics, Vol 9, Iss 2783, p 2783 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	laterally loaded pile <i>p–y</i> curve soil-pile interface Drucker–Prager model Mathematics QA1-939
spellingShingle	laterally loaded pile <i>p–y</i> curve soil-pile interface Drucker–Prager model Mathematics QA1-939 Kexin Yin Lianghui Li Eugenia Di Filippo A Numerical Investigation to Determine the <i>p</i>–<i>y</i> Curves of Laterally Loaded Piles
description	This paper focuses on a numerical approach to finding the <i>p–y</i> curves for laterally loaded piles. The Drucker–Prager plastic model is employed and implemented within a finite element MATLAB code. The pre- and post-processing code for Gmsh and related numerical tools are established as well. The <i>p–y</i> curve results from this new approach have been validated and compared to the typical design equations of API (American Petroleum Institute) and Matlock. The validation reveals that the code leads to lower <i>p–y</i> curves than the API and Matlock equations when the horizontal displacement is less than 0.35 times the diameter of the pile (<i>B</i>). A sensitivity analysis of the number of elements and the interface thickness is presented. The results indicate that the obtained <i>p–y</i> curves are independent of the two factors. Finally, the influence of clay content on the <i>p–y</i> behavior is investigated by the implemented MATLAB code. When <i>y</i> < 0.15<i>B</i>, the same lateral capacity values are resulted at clay contents of 27.5% and 55%, and they are higher than the ones for 0% clay content. The <i>p–y</i> curves show a decreasing trend with increasing clay content after <i>y</i> > 0.15<i>B</i>.
format	article
author	Kexin Yin Lianghui Li Eugenia Di Filippo
author_facet	Kexin Yin Lianghui Li Eugenia Di Filippo
author_sort	Kexin Yin
title	A Numerical Investigation to Determine the <i>p</i>–<i>y</i> Curves of Laterally Loaded Piles
title_short	A Numerical Investigation to Determine the <i>p</i>–<i>y</i> Curves of Laterally Loaded Piles
title_full	A Numerical Investigation to Determine the <i>p</i>–<i>y</i> Curves of Laterally Loaded Piles
title_fullStr	A Numerical Investigation to Determine the <i>p</i>–<i>y</i> Curves of Laterally Loaded Piles
title_full_unstemmed	A Numerical Investigation to Determine the <i>p</i>–<i>y</i> Curves of Laterally Loaded Piles
title_sort	numerical investigation to determine the <i>p</i>–<i>y</i> curves of laterally loaded piles
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/971ed633da9c448a82ac0348f801107f
work_keys_str_mv	AT kexinyin anumericalinvestigationtodeterminetheipiiyicurvesoflaterallyloadedpiles AT lianghuili anumericalinvestigationtodeterminetheipiiyicurvesoflaterallyloadedpiles AT eugeniadifilippo anumericalinvestigationtodeterminetheipiiyicurvesoflaterallyloadedpiles AT kexinyin numericalinvestigationtodeterminetheipiiyicurvesoflaterallyloadedpiles AT lianghuili numericalinvestigationtodeterminetheipiiyicurvesoflaterallyloadedpiles AT eugeniadifilippo numericalinvestigationtodeterminetheipiiyicurvesoflaterallyloadedpiles
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A Numerical Investigation to Determine the <i>p</i>–<i>y</i> Curves of Laterally Loaded Piles

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