Experimental study of the freeze thaw characteristics of expansive soil slope models with different initial moisture contents
Abstract This paper presents an experimental investigation on the effect of freeze–thaw cycling on expansive soil slopes with different initial moisture contents. Clay soil from Weifang, China, was remolded and selected to build the expansive soil slope for the indoor slope model tests. A total of f...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-02662-9 |
| _version_ | 1818401503806750720 |
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| author | Zhongnian Yang Jianhang Lv Wei Shi Chao Jia Chu Wang Yong Hong Xianzhang Ling |
| author_facet | Zhongnian Yang Jianhang Lv Wei Shi Chao Jia Chu Wang Yong Hong Xianzhang Ling |
| author_sort | Zhongnian Yang |
| collection | DOAJ |
| description | Abstract This paper presents an experimental investigation on the effect of freeze–thaw cycling on expansive soil slopes with different initial moisture contents. Clay soil from Weifang, China, was remolded and selected to build the expansive soil slope for the indoor slope model tests. A total of five freeze–thaw cycles were applied to the three expansive soil slopes with different moisture contents ranging from 20 to 40%. Variations of the crack developments, displacements, soil pressures and moisture contents of the expansive soil slope with different initial moisture contents during the freeze–thaw cycling were reported and discussed. The results indicate that higher moisture contents can slow the development of cracks and that the soil pressure increases with decreasing temperature. The soil pressure of slope decreases after freeze–thaw cycle, and the change amplitude of soil pressure after freeze–thaw is proportional to water content. The slopes with a moisture content of 20% and 30% shrinks during freezing and expands during thawing, which was named ES-FSTE Model, while the slope with a 40% moisture content shows the opposite behavior. During freeze–thaw cycles, moisture migrates to slope surface. As initial moisture contents increase, the soil heat transfer rate and bearing capacity decreases after five freeze–thaw cycling. |
| first_indexed | 2024-12-14T07:53:31Z |
| format | Article |
| id | doaj.art-10ba6535a881492588fcde20fd43c49a |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-14T07:53:31Z |
| publishDate | 2021-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-10ba6535a881492588fcde20fd43c49a2022-12-21T23:10:36ZengNature PortfolioScientific Reports2045-23222021-11-0111111610.1038/s41598-021-02662-9Experimental study of the freeze thaw characteristics of expansive soil slope models with different initial moisture contentsZhongnian Yang0Jianhang Lv1Wei Shi2Chao Jia3Chu Wang4Yong Hong5Xianzhang Ling6Qingdao University of TechnologyQingdao University of TechnologyQingdao University of TechnologyShandong UniversityPennsylvania State UniversityQingdao University of TechnologyQingdao University of TechnologyAbstract This paper presents an experimental investigation on the effect of freeze–thaw cycling on expansive soil slopes with different initial moisture contents. Clay soil from Weifang, China, was remolded and selected to build the expansive soil slope for the indoor slope model tests. A total of five freeze–thaw cycles were applied to the three expansive soil slopes with different moisture contents ranging from 20 to 40%. Variations of the crack developments, displacements, soil pressures and moisture contents of the expansive soil slope with different initial moisture contents during the freeze–thaw cycling were reported and discussed. The results indicate that higher moisture contents can slow the development of cracks and that the soil pressure increases with decreasing temperature. The soil pressure of slope decreases after freeze–thaw cycle, and the change amplitude of soil pressure after freeze–thaw is proportional to water content. The slopes with a moisture content of 20% and 30% shrinks during freezing and expands during thawing, which was named ES-FSTE Model, while the slope with a 40% moisture content shows the opposite behavior. During freeze–thaw cycles, moisture migrates to slope surface. As initial moisture contents increase, the soil heat transfer rate and bearing capacity decreases after five freeze–thaw cycling.https://doi.org/10.1038/s41598-021-02662-9 |
| spellingShingle | Zhongnian Yang Jianhang Lv Wei Shi Chao Jia Chu Wang Yong Hong Xianzhang Ling Experimental study of the freeze thaw characteristics of expansive soil slope models with different initial moisture contents Scientific Reports |
| title | Experimental study of the freeze thaw characteristics of expansive soil slope models with different initial moisture contents |
| title_full | Experimental study of the freeze thaw characteristics of expansive soil slope models with different initial moisture contents |
| title_fullStr | Experimental study of the freeze thaw characteristics of expansive soil slope models with different initial moisture contents |
| title_full_unstemmed | Experimental study of the freeze thaw characteristics of expansive soil slope models with different initial moisture contents |
| title_short | Experimental study of the freeze thaw characteristics of expansive soil slope models with different initial moisture contents |
| title_sort | experimental study of the freeze thaw characteristics of expansive soil slope models with different initial moisture contents |
| url | https://doi.org/10.1038/s41598-021-02662-9 |
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