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Study on creep characteristics and component model of saline soil in hexi corridor
Accurate mastery of the creep characteristics of unsaturated saline soil is extremely important for the long-term stability and safe operation of all types of buildings. In this paper, the research object focused on the saline soil of the Zhangye area, Hexi corridor. The indoor triaxial CU creep tes...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10593926/ https://www.ncbi.nlm.nih.gov/pubmed/37872206 http://dx.doi.org/10.1038/s41598-023-42548-6 |
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author | Yu, Yun-yan Luo, Chong-liang Cui, Wen-hao Tao, Jing-yan Zhang, Ting-hua |
author_facet | Yu, Yun-yan Luo, Chong-liang Cui, Wen-hao Tao, Jing-yan Zhang, Ting-hua |
author_sort | Yu, Yun-yan |
collection | PubMed |
description | Accurate mastery of the creep characteristics of unsaturated saline soil is extremely important for the long-term stability and safe operation of all types of buildings. In this paper, the research object focused on the saline soil of the Zhangye area, Hexi corridor. The indoor triaxial CU creep test was carried out by means of graded loading to study the creep characteristics of saline soil under different salt content and loading stress. The Merchant and Burgers models were used to predict the creep behavior of the saline soils, and the predicted results were compared with the experimental values. The results showed that the triaxial creep curve of saline soil developed in stage III. Namely, transient creep stage, deceleration creep stage and steady-state creep stage. The creep deformation increases with the increase of salt content and loading stress. The stress–strain isochronous curve has non-linear growth, and the cluster of curves develops from dense to sparse after increasing to long-term strength (100∼150 kPa). The parameters of the Merchant and Burgers model vary with salt content and loading stress, and the creep curve predicted by the Burgers model is closer to the test value. |
format | Online Article Text |
id | pubmed-10593926 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-105939262023-10-25 Study on creep characteristics and component model of saline soil in hexi corridor Yu, Yun-yan Luo, Chong-liang Cui, Wen-hao Tao, Jing-yan Zhang, Ting-hua Sci Rep Article Accurate mastery of the creep characteristics of unsaturated saline soil is extremely important for the long-term stability and safe operation of all types of buildings. In this paper, the research object focused on the saline soil of the Zhangye area, Hexi corridor. The indoor triaxial CU creep test was carried out by means of graded loading to study the creep characteristics of saline soil under different salt content and loading stress. The Merchant and Burgers models were used to predict the creep behavior of the saline soils, and the predicted results were compared with the experimental values. The results showed that the triaxial creep curve of saline soil developed in stage III. Namely, transient creep stage, deceleration creep stage and steady-state creep stage. The creep deformation increases with the increase of salt content and loading stress. The stress–strain isochronous curve has non-linear growth, and the cluster of curves develops from dense to sparse after increasing to long-term strength (100∼150 kPa). The parameters of the Merchant and Burgers model vary with salt content and loading stress, and the creep curve predicted by the Burgers model is closer to the test value. Nature Publishing Group UK 2023-10-23 /pmc/articles/PMC10593926/ /pubmed/37872206 http://dx.doi.org/10.1038/s41598-023-42548-6 Text en © The Author(s) 2023 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 Yu, Yun-yan Luo, Chong-liang Cui, Wen-hao Tao, Jing-yan Zhang, Ting-hua Study on creep characteristics and component model of saline soil in hexi corridor |
title | Study on creep characteristics and component model of saline soil in hexi corridor |
title_full | Study on creep characteristics and component model of saline soil in hexi corridor |
title_fullStr | Study on creep characteristics and component model of saline soil in hexi corridor |
title_full_unstemmed | Study on creep characteristics and component model of saline soil in hexi corridor |
title_short | Study on creep characteristics and component model of saline soil in hexi corridor |
title_sort | study on creep characteristics and component model of saline soil in hexi corridor |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10593926/ https://www.ncbi.nlm.nih.gov/pubmed/37872206 http://dx.doi.org/10.1038/s41598-023-42548-6 |
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