Revisiting the effect of foundation embedment on elastic settlement: A new approach

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Title: Revisiting the effect of foundation embedment on elastic settlement: A new approach
Authors: Díaz Castañeda, Esteban | Tomás, Roberto
Research Group/s: Ingeniería del Terreno y sus Estructuras (InTerEs)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: Foundations | Soil/structure interaction | Settlement | Elasticity | Finite-element modelling | Statistical analysis
Knowledge Area: Ingeniería del Terreno
Issue Date: Oct-2014
Publisher: Elsevier
Citation: Computers and Geotechnics. 2014, 62: 283-292. doi:10.1016/j.compgeo.2014.08.002
Abstract: The effect of foundation embedment on settlement calculation is a widely researched topic in which there is no scientific consensus regarding the magnitude of settlement reduction. In this paper, a non-linear three dimensional Finite Element analysis has been performed with the aim of evaluating the aforementioned effect. For this purpose, 1800 models were run considering different variables, such as the depth and dimensions of the foundation and the Young’s modulus and Poisson’s ratio of the soil. The settlements from models with foundations at surface level and at depth were then compared and the relationship between them established. The statistical analysis of this data allowed two new expressions, with a mean maximum error of 1.80%, for the embedment influence factor of a foundation to be proposed and these to be compared with commonly used corrections. The proposed equations were validated by comparing the settlements calculated with the proposed influence factors and the true settlements measured in several real foundations. From the comprehensive study of all modelled cases, an improved approach, when compared to those proposed by other authors, for the calculation of the true elastic settlements of an embedded foundation is proposed.
Sponsor: This study was undertaken as part of the UNED "Máster en Teoría y Aplicación Práctica del Método de los Elementos Finitos y Simulación" and was funded by the Spanish Government under project TEC2011-28201-C02 and the University of Alicante (VIGROB-157). Terratest Rosehill supported part of this research.
URI: http://hdl.handle.net/10045/46368
ISSN: 0266-352X (Print) | 1873-7633 (Online)
DOI: 10.1016/j.compgeo.2014.08.002
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2014 Elsevier Ltd.
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.compgeo.2014.08.002
Appears in Collections:INV - INTERES - Artículos de Revistas

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