Study on anti-frost heave effect of new thermal insulation subgrade of highway in seasonally frozen soil regions.
Frost heave is one of the important factors affecting the long-term stability and safe operation of subgrade in seasonally frozen soil regions. To investigate the anti-frost heave effect of foam concrete insulation and composite insulation structure subgrade, a multi-physics fields coupling numerica...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2025-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0318682 |
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| author | Xiaoqiang Mi Wenqiang Zhang Ge Zhang Xinbin Wang |
| author_facet | Xiaoqiang Mi Wenqiang Zhang Ge Zhang Xinbin Wang |
| author_sort | Xiaoqiang Mi |
| collection | DOAJ |
| description | Frost heave is one of the important factors affecting the long-term stability and safe operation of subgrade in seasonally frozen soil regions. To investigate the anti-frost heave effect of foam concrete insulation and composite insulation structure subgrade, a multi-physics fields coupling numerical simulation was employed. From the perspective of hydrothermal process of the subgrade, the ground temperature distribution, maximum freezing depth, ice distribution, and maximum frost heave are systematically analyzed. The results indicate that the foamed concrete insulation layer subgrade exhibits a significant anti-frost heave effect. Meanwhile, to alleviate the sunny-shady slopes effect on subgrade in the seasonally frozen soils regions, the composite insulation structure combining XPS insulation board with foamed concrete insulation was recommended. Moreover, the appropriate anti-frost heave measures for subgrade are proposed, which considering the different frost heave characteristics. The findings can serve as a reference for the prevention and control of frost heave in highway subgrade and for the application of foam concrete insulation layers in seasonal frozen soil regions. |
| format | Article |
| id | doaj-art-b00d9728d3894096b57a37ccef85e996 |
| institution | Kabale University |
| issn | 1932-6203 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-b00d9728d3894096b57a37ccef85e9962025-02-09T05:30:35ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01202e031868210.1371/journal.pone.0318682Study on anti-frost heave effect of new thermal insulation subgrade of highway in seasonally frozen soil regions.Xiaoqiang MiWenqiang ZhangGe ZhangXinbin WangFrost heave is one of the important factors affecting the long-term stability and safe operation of subgrade in seasonally frozen soil regions. To investigate the anti-frost heave effect of foam concrete insulation and composite insulation structure subgrade, a multi-physics fields coupling numerical simulation was employed. From the perspective of hydrothermal process of the subgrade, the ground temperature distribution, maximum freezing depth, ice distribution, and maximum frost heave are systematically analyzed. The results indicate that the foamed concrete insulation layer subgrade exhibits a significant anti-frost heave effect. Meanwhile, to alleviate the sunny-shady slopes effect on subgrade in the seasonally frozen soils regions, the composite insulation structure combining XPS insulation board with foamed concrete insulation was recommended. Moreover, the appropriate anti-frost heave measures for subgrade are proposed, which considering the different frost heave characteristics. The findings can serve as a reference for the prevention and control of frost heave in highway subgrade and for the application of foam concrete insulation layers in seasonal frozen soil regions.https://doi.org/10.1371/journal.pone.0318682 |
| spellingShingle | Xiaoqiang Mi Wenqiang Zhang Ge Zhang Xinbin Wang Study on anti-frost heave effect of new thermal insulation subgrade of highway in seasonally frozen soil regions. PLoS ONE |
| title | Study on anti-frost heave effect of new thermal insulation subgrade of highway in seasonally frozen soil regions. |
| title_full | Study on anti-frost heave effect of new thermal insulation subgrade of highway in seasonally frozen soil regions. |
| title_fullStr | Study on anti-frost heave effect of new thermal insulation subgrade of highway in seasonally frozen soil regions. |
| title_full_unstemmed | Study on anti-frost heave effect of new thermal insulation subgrade of highway in seasonally frozen soil regions. |
| title_short | Study on anti-frost heave effect of new thermal insulation subgrade of highway in seasonally frozen soil regions. |
| title_sort | study on anti frost heave effect of new thermal insulation subgrade of highway in seasonally frozen soil regions |
| url | https://doi.org/10.1371/journal.pone.0318682 |
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