Experimental study on the mechanism of ice layer formation in fractured rock masses in cold regions
Abstract The formation and growth of ice layers in fractured rock masses is one of the main causes of frost weathering in bedrock in cold regions. The mechanism of ice layer formation in fractured rock masses was simulated in this study by conducting frost weathering tests on a simulated rock mass w...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-22735-7 |
| _version_ | 1811197954362441728 |
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| author | Liping Wang Zhuxu Dong Ning Li Wenli Wang Yanzhe Tian Shuanhai Xu |
| author_facet | Liping Wang Zhuxu Dong Ning Li Wenli Wang Yanzhe Tian Shuanhai Xu |
| author_sort | Liping Wang |
| collection | DOAJ |
| description | Abstract The formation and growth of ice layers in fractured rock masses is one of the main causes of frost weathering in bedrock in cold regions. The mechanism of ice layer formation in fractured rock masses was simulated in this study by conducting frost weathering tests on a simulated rock mass with a vertical through fracture, which was fabricated by splicing two cement blocks. The test results were used to propose a novel mechanism for ice layer formation in terms of the initial crack-frost effect in which moisture mainly migrates in vapor form. The continuous accumulation and growth of these frosts eventually forms an ice layer that expands the crack, and the fractured rock simulation model undergoes frost-heaving damage. The frost layer on the rock wall in the negative temperature region is similar to the frosting process on the cold surface of thermodynamic studies. The relative humidity (RH) gradient and temperature gradient were shown to be the factors affecting water vapor migration, where the former plays a direct and dominant role, and the temperature gradient has a very limited direct effect on vapor migration. |
| first_indexed | 2024-04-12T01:23:08Z |
| format | Article |
| id | doaj.art-55b97f751786454c8c014a652053031c |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-12T01:23:08Z |
| publishDate | 2022-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-55b97f751786454c8c014a652053031c2022-12-22T03:53:43ZengNature PortfolioScientific Reports2045-23222022-10-0112111010.1038/s41598-022-22735-7Experimental study on the mechanism of ice layer formation in fractured rock masses in cold regionsLiping Wang0Zhuxu Dong1Ning Li2Wenli Wang3Yanzhe Tian4Shuanhai Xu5School of Civil Engineering and Architecture, Xi’an University of TechnologySchool of Civil Engineering and Architecture, Xi’an University of TechnologySchool of Civil Engineering and Architecture, Xi’an University of TechnologySchool of Civil Engineering and Architecture, Xi’an University of TechnologyInstitute of Engineering Geology, CCTEG XI’AN Research InstituteInstitute of Engineering Geology, CCTEG XI’AN Research InstituteAbstract The formation and growth of ice layers in fractured rock masses is one of the main causes of frost weathering in bedrock in cold regions. The mechanism of ice layer formation in fractured rock masses was simulated in this study by conducting frost weathering tests on a simulated rock mass with a vertical through fracture, which was fabricated by splicing two cement blocks. The test results were used to propose a novel mechanism for ice layer formation in terms of the initial crack-frost effect in which moisture mainly migrates in vapor form. The continuous accumulation and growth of these frosts eventually forms an ice layer that expands the crack, and the fractured rock simulation model undergoes frost-heaving damage. The frost layer on the rock wall in the negative temperature region is similar to the frosting process on the cold surface of thermodynamic studies. The relative humidity (RH) gradient and temperature gradient were shown to be the factors affecting water vapor migration, where the former plays a direct and dominant role, and the temperature gradient has a very limited direct effect on vapor migration.https://doi.org/10.1038/s41598-022-22735-7 |
| spellingShingle | Liping Wang Zhuxu Dong Ning Li Wenli Wang Yanzhe Tian Shuanhai Xu Experimental study on the mechanism of ice layer formation in fractured rock masses in cold regions Scientific Reports |
| title | Experimental study on the mechanism of ice layer formation in fractured rock masses in cold regions |
| title_full | Experimental study on the mechanism of ice layer formation in fractured rock masses in cold regions |
| title_fullStr | Experimental study on the mechanism of ice layer formation in fractured rock masses in cold regions |
| title_full_unstemmed | Experimental study on the mechanism of ice layer formation in fractured rock masses in cold regions |
| title_short | Experimental study on the mechanism of ice layer formation in fractured rock masses in cold regions |
| title_sort | experimental study on the mechanism of ice layer formation in fractured rock masses in cold regions |
| url | https://doi.org/10.1038/s41598-022-22735-7 |
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