Study on soil freezing characteristic curve during a freezing-thawing process
Soil freezing characteristic curve (SFCC) defines the relationship between unfrozen water content and subzero temperature. The SFCC is widely applied to estimate the soil properties. The current study explored the effects of initial water content, dry density, soil type and desalination on the SFCC...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Earth Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.1007342/full |
| _version_ | 1797956162041151488 |
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| author | Jun Bi Zhijian Wu Yu Lu Haiyan Wen Yingmin Zhang Yunxia Shen Tingting Wei Guoxu Wang |
| author_facet | Jun Bi Zhijian Wu Yu Lu Haiyan Wen Yingmin Zhang Yunxia Shen Tingting Wei Guoxu Wang |
| author_sort | Jun Bi |
| collection | DOAJ |
| description | Soil freezing characteristic curve (SFCC) defines the relationship between unfrozen water content and subzero temperature. The SFCC is widely applied to estimate the soil properties. The current study explored the effects of initial water content, dry density, soil type and desalination on the SFCC during a freezing-thawing process. It showed that the initial water content, soil type and desalination had great impacts on SFCC, while the dry density had an insignificant effect on SFCC. Hysteresis behavior was observed for all the soil samples. The hysteresis behavior was obvious in the temperature range of -5°C < T < 0, but not obvious in the temperature range of T ≤ -10 °C. A new equation containing freezing/thawing point was proposed to model the SFCC. The new model and four SFCC models were evaluated with measured data in this study. It showed that the new model performed best among these models. The new model accurately mimics the SFCC and is continuous near the freezing/thawing point and 0 °C. It can be easily incorporated into numerical algorithms for coupled heat and mass transfer in cold regions. |
| first_indexed | 2024-04-10T23:45:44Z |
| format | Article |
| id | doaj.art-48423325b4b84e758e5b971003f8c1ff |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-10T23:45:44Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-48423325b4b84e758e5b971003f8c1ff2023-01-11T04:31:25ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-01-011010.3389/feart.2022.10073421007342Study on soil freezing characteristic curve during a freezing-thawing processJun Bi0Zhijian Wu1Yu Lu2Haiyan Wen3Yingmin Zhang4Yunxia Shen5Tingting Wei6Guoxu Wang7College of Transportation Engineering, Nanjing Tech University, Nanjing, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing, ChinaState Key Laboratory of Seed Innovation and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, ChinaCCCC First Harbor Consultants Co., Ltd, Tianjin, ChinaSchool of Cultural Heritage, Northwest University, Xi’an, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing, ChinaSoil freezing characteristic curve (SFCC) defines the relationship between unfrozen water content and subzero temperature. The SFCC is widely applied to estimate the soil properties. The current study explored the effects of initial water content, dry density, soil type and desalination on the SFCC during a freezing-thawing process. It showed that the initial water content, soil type and desalination had great impacts on SFCC, while the dry density had an insignificant effect on SFCC. Hysteresis behavior was observed for all the soil samples. The hysteresis behavior was obvious in the temperature range of -5°C < T < 0, but not obvious in the temperature range of T ≤ -10 °C. A new equation containing freezing/thawing point was proposed to model the SFCC. The new model and four SFCC models were evaluated with measured data in this study. It showed that the new model performed best among these models. The new model accurately mimics the SFCC and is continuous near the freezing/thawing point and 0 °C. It can be easily incorporated into numerical algorithms for coupled heat and mass transfer in cold regions.https://www.frontiersin.org/articles/10.3389/feart.2022.1007342/fullunfrozen water contentsoil freezing characteristic curvefreezing-thawing processhysteresis behaviorfreezing point |
| spellingShingle | Jun Bi Zhijian Wu Yu Lu Haiyan Wen Yingmin Zhang Yunxia Shen Tingting Wei Guoxu Wang Study on soil freezing characteristic curve during a freezing-thawing process Frontiers in Earth Science unfrozen water content soil freezing characteristic curve freezing-thawing process hysteresis behavior freezing point |
| title | Study on soil freezing characteristic curve during a freezing-thawing process |
| title_full | Study on soil freezing characteristic curve during a freezing-thawing process |
| title_fullStr | Study on soil freezing characteristic curve during a freezing-thawing process |
| title_full_unstemmed | Study on soil freezing characteristic curve during a freezing-thawing process |
| title_short | Study on soil freezing characteristic curve during a freezing-thawing process |
| title_sort | study on soil freezing characteristic curve during a freezing thawing process |
| topic | unfrozen water content soil freezing characteristic curve freezing-thawing process hysteresis behavior freezing point |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.1007342/full |
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