Study on creep characteristics and component model of saline soil in hexi corridor
Abstract 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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-42548-6 |
| _version_ | 1797560021193588736 |
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| author | Yun-yan Yu Chong-liang Luo Wen-hao Cui Jing-yan Tao Ting-hua Zhang |
| author_facet | Yun-yan Yu Chong-liang Luo Wen-hao Cui Jing-yan Tao Ting-hua Zhang |
| author_sort | Yun-yan Yu |
| collection | DOAJ |
| description | Abstract 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. |
| first_indexed | 2024-03-10T17:53:31Z |
| format | Article |
| id | doaj.art-15f55623bcc4499e85ec3205d22266a6 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-10T17:53:31Z |
| publishDate | 2023-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-15f55623bcc4499e85ec3205d22266a62023-11-20T09:15:05ZengNature PortfolioScientific Reports2045-23222023-10-0113111110.1038/s41598-023-42548-6Study on creep characteristics and component model of saline soil in hexi corridorYun-yan Yu0Chong-liang Luo1Wen-hao Cui2Jing-yan Tao3Ting-hua Zhang4School of Civil Engineering, Lanzhou Jiaotong UniversitySchool of Civil Engineering, Tianshui Normal UniversitySchool of Civil Engineering, Lanzhou Jiaotong UniversitySchool of Civil Engineering, Lanzhou Jiaotong UniversitySchool of Civil Engineering, Lanzhou Jiaotong UniversityAbstract 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.https://doi.org/10.1038/s41598-023-42548-6 |
| spellingShingle | Yun-yan Yu Chong-liang Luo Wen-hao Cui Jing-yan Tao Ting-hua Zhang Study on creep characteristics and component model of saline soil in hexi corridor Scientific Reports |
| 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 |
| url | https://doi.org/10.1038/s41598-023-42548-6 |
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