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Analytical Solution for Axially Loaded Piles in Two-Layer Soil

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Analytical Solution for Axially Loaded Piles in Two-Layer Soil. / Anoyatis, George; Mylonakis, George.

In: Journal of Engineering Mechanics, Vol. 146, No. 3, 04020003, 01.03.2020.

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Anoyatis, George ; Mylonakis, George. / Analytical Solution for Axially Loaded Piles in Two-Layer Soil. In: Journal of Engineering Mechanics. 2020 ; Vol. 146, No. 3.

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@article{8e83b612c3c045f6841b967664bc2a55,
title = "Analytical Solution for Axially Loaded Piles in Two-Layer Soil",
abstract = "An analytical elastic continuum model is developed for the settlement of end-bearing piles in a two-layer soil over a rigid stratum. The model has its roots in the point-load solution of Westergaard, which was later extended by Tajimi to deep foundations and lies on the assumption of a vanishing soil stress or displacement component. For piles in homogeneous soils, such solutions were elaborated on by Nogami and Novak. Contrary to these solutions, the proposed generalized formulation can handle layered soils using, for the first time, two sets of eigenfunctions (static {"}modes{"}) that are different for the soil and the pile. Stresses and displacements are determined in the form of Fourier series with coupled coefficients obtained by solving a system of algebraic equations of rank equal to the number of modes considered. This is in contrast with existing models, where the Fourier coefficients are obtained individually. Pile-head stiffnesses obtained from this model are verified against results from rigorous finite-element analyses and other solutions. Results for pile settlement, pile stresses, side friction, and Winkler moduli are presented.",
keywords = "Analytical model, Elasticity, End-bearing piles, Layered soil, Soil-pile interaction",
author = "George Anoyatis and George Mylonakis",
year = "2020",
month = "3",
day = "1",
doi = "10.1061/(ASCE)EM.1943-7889.0001724",
language = "English",
volume = "146",
journal = "Journal of Engineering Mechanics",
issn = "0733-9399",
publisher = "American Society of Civil Engineers (ASCE)",
number = "3",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Analytical Solution for Axially Loaded Piles in Two-Layer Soil

AU - Anoyatis, George

AU - Mylonakis, George

PY - 2020/3/1

Y1 - 2020/3/1

N2 - An analytical elastic continuum model is developed for the settlement of end-bearing piles in a two-layer soil over a rigid stratum. The model has its roots in the point-load solution of Westergaard, which was later extended by Tajimi to deep foundations and lies on the assumption of a vanishing soil stress or displacement component. For piles in homogeneous soils, such solutions were elaborated on by Nogami and Novak. Contrary to these solutions, the proposed generalized formulation can handle layered soils using, for the first time, two sets of eigenfunctions (static "modes") that are different for the soil and the pile. Stresses and displacements are determined in the form of Fourier series with coupled coefficients obtained by solving a system of algebraic equations of rank equal to the number of modes considered. This is in contrast with existing models, where the Fourier coefficients are obtained individually. Pile-head stiffnesses obtained from this model are verified against results from rigorous finite-element analyses and other solutions. Results for pile settlement, pile stresses, side friction, and Winkler moduli are presented.

AB - An analytical elastic continuum model is developed for the settlement of end-bearing piles in a two-layer soil over a rigid stratum. The model has its roots in the point-load solution of Westergaard, which was later extended by Tajimi to deep foundations and lies on the assumption of a vanishing soil stress or displacement component. For piles in homogeneous soils, such solutions were elaborated on by Nogami and Novak. Contrary to these solutions, the proposed generalized formulation can handle layered soils using, for the first time, two sets of eigenfunctions (static "modes") that are different for the soil and the pile. Stresses and displacements are determined in the form of Fourier series with coupled coefficients obtained by solving a system of algebraic equations of rank equal to the number of modes considered. This is in contrast with existing models, where the Fourier coefficients are obtained individually. Pile-head stiffnesses obtained from this model are verified against results from rigorous finite-element analyses and other solutions. Results for pile settlement, pile stresses, side friction, and Winkler moduli are presented.

KW - Analytical model

KW - Elasticity

KW - End-bearing piles

KW - Layered soil

KW - Soil-pile interaction

UR - http://www.scopus.com/inward/record.url?scp=85077966569&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)EM.1943-7889.0001724

DO - 10.1061/(ASCE)EM.1943-7889.0001724

M3 - Article

AN - SCOPUS:85077966569

VL - 146

JO - Journal of Engineering Mechanics

JF - Journal of Engineering Mechanics

SN - 0733-9399

IS - 3

M1 - 04020003

ER -