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ORIGINAL RESEARCH article
Front. Built Environ.
Sec. Geotechnical Engineering
Volume 10 - 2024 |
doi: 10.3389/fbuil.2024.1454266
This article is part of the Research Topic Recent Advances in Numerical Modelling for Soil and Soil-Structure Interactions View all 4 articles
Numerical investigation of pile foundation systems employing an enhanced embedded finite element
Provisionally accepted- Graz University of Technology, Graz, Austria
The design of large-scale pile foundation systems is routinely assisted by finite element simulations. To a large extent, both the modeling and the computational effort of such analyses are governed by the adopted pile modeling technique. The traditional approach to this problem fully resolves the pile and soil domain employing solid elements, resulting in considerable meshing constraints and high simulation runtimes that may be regarded as unbearable for many practical purposes. As an attractive alternative to circumvent these obstacles, embedded FE models have become increasingly popular in solving this modeling task, mainly due to their flexible meshing procedure and significantly enhanced runtime efficiency. In a preceding contribution, the authors have proposed an extended formulation that provides a rigorous framework to capture soil-structure interaction effects at the physical soil-pile contacts. As a key feature, the implemented combined soil-pile coupling scheme explicitly accounts for endpoint interaction. However, validation studies have been constrained to single pile analyses to date. The present work expands this validation scope to large-scale boundary value problems involving multiple piles and investigates the model performance based on three different case studies. The results are compared to both, measurements and numerical benchmark solutions and provide exclusive insight into the numerical fidelity of the developed embedded FE model, with a view to increasing its potential for take-up in engineering practice.
Keywords: Embedded finite element, pile, Foundation, Integral bridge, High-rise building
Received: 24 Jun 2024; Accepted: 09 Sep 2024.
Copyright: © 2024 Granitzer, Felic, Leo, Stastny and Tschuchnigg. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Andreas-Nizar Granitzer, Graz University of Technology, Graz, Austria
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