Calculating the Soil Freezing Characteristic Curve of Saline Soil With Equivalent State of Bulk Solution
Abstract The relationship between unfrozen water content and temperature, called as soil freezing characteristic curve (SFCC), is of importance for hydrologic, engineering, environmental issues related to frozen soil. The SFCC of saline soil is essentially a result of phase equilibrium of pore solut...
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| Format: | Article |
| Language: | English |
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Wiley
2024-08-01
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| Series: | Water Resources Research |
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| Online Access: | https://doi.org/10.1029/2024WR037539 |
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| author | Lihong Cui Zean Xiao Junfeng Chen Qinbo Yuan Xuehua Zhao Jing Xue |
| author_facet | Lihong Cui Zean Xiao Junfeng Chen Qinbo Yuan Xuehua Zhao Jing Xue |
| author_sort | Lihong Cui |
| collection | DOAJ |
| description | Abstract The relationship between unfrozen water content and temperature, called as soil freezing characteristic curve (SFCC), is of importance for hydrologic, engineering, environmental issues related to frozen soil. The SFCC of saline soil is essentially a result of phase equilibrium of pore solution, which is similar but not identical to that of bulk solution. However, there is still a vacancy of study on the phase equilibrium of pore solution in frozen soil. In this study, image transformation was used to establish the relationship of phase equilibrium between bulk solution and pore solution, with four introduced parameters. Then, the new model of SFCC for saline soil was proposed based on the equivalent state of bulk solution with Pitzer model and SFCC of nonsaline soil. The model was validated by the experimental data from published articles and showed good performance in calculating SFCC of saline soils regardless of soil type, phase transition path, and soil initial water‐salt condition, and some advantages when compared to other three models. All the four introduced parameters have clear physical meanings and their relationships with soil type and initial salt concentration were discussed. Finally, the evolution of phase diagram from bulk solution to pore solution at icing stage was figured out. Further studies are needed for their relationship at salt crystallization stage. Shifting the research perspective from unfrozen water content to pore solution, this study gives a new approach to research of freezing characteristic of saline soil and could promote hydrological and engineering research in cold regions. |
| format | Article |
| id | doaj-art-4dedff0c047246a0a32385ab49c4bc0f |
| institution | DOAJ |
| issn | 0043-1397 1944-7973 |
| language | English |
| publishDate | 2024-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Water Resources Research |
| spelling | doaj-art-4dedff0c047246a0a32385ab49c4bc0f2025-08-20T02:58:21ZengWileyWater Resources Research0043-13971944-79732024-08-01608n/an/a10.1029/2024WR037539Calculating the Soil Freezing Characteristic Curve of Saline Soil With Equivalent State of Bulk SolutionLihong Cui0Zean Xiao1Junfeng Chen2Qinbo Yuan3Xuehua Zhao4Jing Xue5College of Water Resources and Engineering, Taiyuan University of Technology Taiyuan ChinaCollege of Civil Engineering, Taiyuan University of Technology Taiyuan ChinaCollege of Water Resources and Engineering, Taiyuan University of Technology Taiyuan ChinaTPECO Ecological Engineering Technology Taiyuan ChinaCollege of Water Resources and Engineering, Taiyuan University of Technology Taiyuan ChinaCollege of Water Resources and Engineering, Taiyuan University of Technology Taiyuan ChinaAbstract The relationship between unfrozen water content and temperature, called as soil freezing characteristic curve (SFCC), is of importance for hydrologic, engineering, environmental issues related to frozen soil. The SFCC of saline soil is essentially a result of phase equilibrium of pore solution, which is similar but not identical to that of bulk solution. However, there is still a vacancy of study on the phase equilibrium of pore solution in frozen soil. In this study, image transformation was used to establish the relationship of phase equilibrium between bulk solution and pore solution, with four introduced parameters. Then, the new model of SFCC for saline soil was proposed based on the equivalent state of bulk solution with Pitzer model and SFCC of nonsaline soil. The model was validated by the experimental data from published articles and showed good performance in calculating SFCC of saline soils regardless of soil type, phase transition path, and soil initial water‐salt condition, and some advantages when compared to other three models. All the four introduced parameters have clear physical meanings and their relationships with soil type and initial salt concentration were discussed. Finally, the evolution of phase diagram from bulk solution to pore solution at icing stage was figured out. Further studies are needed for their relationship at salt crystallization stage. Shifting the research perspective from unfrozen water content to pore solution, this study gives a new approach to research of freezing characteristic of saline soil and could promote hydrological and engineering research in cold regions.https://doi.org/10.1029/2024WR037539unfrozen water contentsaline soilphase equilibriumtwo phase transition stagesequivalent bulk solution |
| spellingShingle | Lihong Cui Zean Xiao Junfeng Chen Qinbo Yuan Xuehua Zhao Jing Xue Calculating the Soil Freezing Characteristic Curve of Saline Soil With Equivalent State of Bulk Solution Water Resources Research unfrozen water content saline soil phase equilibrium two phase transition stages equivalent bulk solution |
| title | Calculating the Soil Freezing Characteristic Curve of Saline Soil With Equivalent State of Bulk Solution |
| title_full | Calculating the Soil Freezing Characteristic Curve of Saline Soil With Equivalent State of Bulk Solution |
| title_fullStr | Calculating the Soil Freezing Characteristic Curve of Saline Soil With Equivalent State of Bulk Solution |
| title_full_unstemmed | Calculating the Soil Freezing Characteristic Curve of Saline Soil With Equivalent State of Bulk Solution |
| title_short | Calculating the Soil Freezing Characteristic Curve of Saline Soil With Equivalent State of Bulk Solution |
| title_sort | calculating the soil freezing characteristic curve of saline soil with equivalent state of bulk solution |
| topic | unfrozen water content saline soil phase equilibrium two phase transition stages equivalent bulk solution |
| url | https://doi.org/10.1029/2024WR037539 |
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