Assessing the Scale Effect on Bearing Capacity of Undrained Subsoil: Implications for Seismic Resilience of Shallow Foundations
This research investigates the influence of the scale effect on the bearing capacity of fine-grained subsoil under undrained conditions. The analyses were conducted based on laboratory tests of silty clay. Uniformly compacted samples were subjected to an unconfined compression test. The research was...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456783/ https://www.ncbi.nlm.nih.gov/pubmed/37629921 http://dx.doi.org/10.3390/ma16165631 |
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author | Zięba, Zofia Krokowska, Małgorzata Wyjadłowski, Marek Kozubal, Janusz Vitalis Kania, Tomasz Mońka, Jakub |
author_facet | Zięba, Zofia Krokowska, Małgorzata Wyjadłowski, Marek Kozubal, Janusz Vitalis Kania, Tomasz Mońka, Jakub |
author_sort | Zięba, Zofia |
collection | PubMed |
description | This research investigates the influence of the scale effect on the bearing capacity of fine-grained subsoil under undrained conditions. The analyses were conducted based on laboratory tests of silty clay. Uniformly compacted samples were subjected to an unconfined compression test. The research was performed on cylindrical specimens. Three different variants of the diameter D (38 mm, 70 mm, 100 mm) and the corresponding height H = 2D were analyzed. Based on the tests results, the unconfined compression strength q(u) was determined, and from this, the undrained shear strength c(u) was calculated. The obtained results showed a clear decrease in c(u) with increasing sample size. However, in the existing reference documents, there are no specific guidelines for calculations of bearing capacity with consideration of sample size effect on the soil shear strength. Therefore, this study utilized the laboratory soil test data to calculate the bearing capacity of undrained subsoil, taking into account the seismic impacts, with a particular focus on spread foundations. |
format | Online Article Text |
id | pubmed-10456783 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104567832023-08-26 Assessing the Scale Effect on Bearing Capacity of Undrained Subsoil: Implications for Seismic Resilience of Shallow Foundations Zięba, Zofia Krokowska, Małgorzata Wyjadłowski, Marek Kozubal, Janusz Vitalis Kania, Tomasz Mońka, Jakub Materials (Basel) Article This research investigates the influence of the scale effect on the bearing capacity of fine-grained subsoil under undrained conditions. The analyses were conducted based on laboratory tests of silty clay. Uniformly compacted samples were subjected to an unconfined compression test. The research was performed on cylindrical specimens. Three different variants of the diameter D (38 mm, 70 mm, 100 mm) and the corresponding height H = 2D were analyzed. Based on the tests results, the unconfined compression strength q(u) was determined, and from this, the undrained shear strength c(u) was calculated. The obtained results showed a clear decrease in c(u) with increasing sample size. However, in the existing reference documents, there are no specific guidelines for calculations of bearing capacity with consideration of sample size effect on the soil shear strength. Therefore, this study utilized the laboratory soil test data to calculate the bearing capacity of undrained subsoil, taking into account the seismic impacts, with a particular focus on spread foundations. MDPI 2023-08-15 /pmc/articles/PMC10456783/ /pubmed/37629921 http://dx.doi.org/10.3390/ma16165631 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zięba, Zofia Krokowska, Małgorzata Wyjadłowski, Marek Kozubal, Janusz Vitalis Kania, Tomasz Mońka, Jakub Assessing the Scale Effect on Bearing Capacity of Undrained Subsoil: Implications for Seismic Resilience of Shallow Foundations |
title | Assessing the Scale Effect on Bearing Capacity of Undrained Subsoil: Implications for Seismic Resilience of Shallow Foundations |
title_full | Assessing the Scale Effect on Bearing Capacity of Undrained Subsoil: Implications for Seismic Resilience of Shallow Foundations |
title_fullStr | Assessing the Scale Effect on Bearing Capacity of Undrained Subsoil: Implications for Seismic Resilience of Shallow Foundations |
title_full_unstemmed | Assessing the Scale Effect on Bearing Capacity of Undrained Subsoil: Implications for Seismic Resilience of Shallow Foundations |
title_short | Assessing the Scale Effect on Bearing Capacity of Undrained Subsoil: Implications for Seismic Resilience of Shallow Foundations |
title_sort | assessing the scale effect on bearing capacity of undrained subsoil: implications for seismic resilience of shallow foundations |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456783/ https://www.ncbi.nlm.nih.gov/pubmed/37629921 http://dx.doi.org/10.3390/ma16165631 |
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