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Effects of breccia and water contents on the mechanical properties of fault-core-zone materials
Determining the mechanical properties of fault-core-zone materials is challenging because of the low strength of such materials, which affects field sampling, specimen preparation, and laboratory testing. We overcame this problem by preparing and testing mechanical properties of 132 artificial fault...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056520/ https://www.ncbi.nlm.nih.gov/pubmed/35490176 http://dx.doi.org/10.1038/s41598-022-10995-2 |
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author | Yun, Hyun-Seok Moon, Seong-Woo Seo, Yong-Seok |
author_facet | Yun, Hyun-Seok Moon, Seong-Woo Seo, Yong-Seok |
author_sort | Yun, Hyun-Seok |
collection | PubMed |
description | Determining the mechanical properties of fault-core-zone materials is challenging because of the low strength of such materials, which affects field sampling, specimen preparation, and laboratory testing. We overcame this problem by preparing and testing mechanical properties of 132 artificial fault-core-zone specimens consisting of mixtures of breccia, sand, clay, and water. The unconfined compressive strength (UCS), elastic modulus (E), and penetration resistance value (PRV) of these fault-core-zone materials were measured, and the effects of breccia content and water content on mechanical properties were assessed. Results show that UCS is inversely proportional to breccia content and water content, and that E is inversely proportional to water content. Furthermore, the inverse relationship of UCS with water content varies with breccia content. UCS is proportional to both PRV and E, and the relationship for each varies with breccia content. High coefficients of determination (R(2) = 0.62–0.88) between the parameters suggest that breccia content, water content, and PRV are potentially useful parameters for estimating the mechanical properties of fault core zones. |
format | Online Article Text |
id | pubmed-9056520 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-90565202022-05-02 Effects of breccia and water contents on the mechanical properties of fault-core-zone materials Yun, Hyun-Seok Moon, Seong-Woo Seo, Yong-Seok Sci Rep Article Determining the mechanical properties of fault-core-zone materials is challenging because of the low strength of such materials, which affects field sampling, specimen preparation, and laboratory testing. We overcame this problem by preparing and testing mechanical properties of 132 artificial fault-core-zone specimens consisting of mixtures of breccia, sand, clay, and water. The unconfined compressive strength (UCS), elastic modulus (E), and penetration resistance value (PRV) of these fault-core-zone materials were measured, and the effects of breccia content and water content on mechanical properties were assessed. Results show that UCS is inversely proportional to breccia content and water content, and that E is inversely proportional to water content. Furthermore, the inverse relationship of UCS with water content varies with breccia content. UCS is proportional to both PRV and E, and the relationship for each varies with breccia content. High coefficients of determination (R(2) = 0.62–0.88) between the parameters suggest that breccia content, water content, and PRV are potentially useful parameters for estimating the mechanical properties of fault core zones. Nature Publishing Group UK 2022-04-30 /pmc/articles/PMC9056520/ /pubmed/35490176 http://dx.doi.org/10.1038/s41598-022-10995-2 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Yun, Hyun-Seok Moon, Seong-Woo Seo, Yong-Seok Effects of breccia and water contents on the mechanical properties of fault-core-zone materials |
title | Effects of breccia and water contents on the mechanical properties of fault-core-zone materials |
title_full | Effects of breccia and water contents on the mechanical properties of fault-core-zone materials |
title_fullStr | Effects of breccia and water contents on the mechanical properties of fault-core-zone materials |
title_full_unstemmed | Effects of breccia and water contents on the mechanical properties of fault-core-zone materials |
title_short | Effects of breccia and water contents on the mechanical properties of fault-core-zone materials |
title_sort | effects of breccia and water contents on the mechanical properties of fault-core-zone materials |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9056520/ https://www.ncbi.nlm.nih.gov/pubmed/35490176 http://dx.doi.org/10.1038/s41598-022-10995-2 |
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