Compressive Mechanical Properties and Micromechanical Characteristics of Warm and Ice-Rich Frozen Silt
It is recognized experimentally that the compressibility of warm and ice-rich frozen soil is remarkable under loading, which will cause a significant deformation and affect the stability of infrastructure constructed in cold region. In this paper, the real-time computerized tomography tests of warm...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/379560 |
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| author | Yugui Yang Feng Gao Yuanming Lai |
| author_facet | Yugui Yang Feng Gao Yuanming Lai |
| author_sort | Yugui Yang |
| collection | DOAJ |
| description | It is recognized experimentally that the compressibility of warm and ice-rich frozen soil is remarkable under loading, which will cause a significant deformation and affect the stability of infrastructure constructed in cold region. In this paper, the real-time computerized tomography tests of warm and ice-rich frozen silt were carried out. The microstructure characteristics in the process of loading were studied, and the macromechanical behaviors were obtained at the same time. The test results showed that the stress-strain curve of warm and ice-rich frozen silt is sensitive to temperature; the peak stress was greatly enhanced with the decrease of temperature, and the section area increases with the increase of axial strain; the water content mainly decreases with the increase of axial strain at −1°C; the change of water content is not obvious at −2°C in the loading process. The density damage changes little at first and then increases with the further increase of axial strain. |
| format | Article |
| id | doaj-art-da381b25ea5141aaba81067afb7142d8 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-da381b25ea5141aaba81067afb7142d82025-02-03T05:46:18ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/379560379560Compressive Mechanical Properties and Micromechanical Characteristics of Warm and Ice-Rich Frozen SiltYugui Yang0Feng Gao1Yuanming Lai2State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221008, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Jiangsu 221116, ChinaState Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, ChinaIt is recognized experimentally that the compressibility of warm and ice-rich frozen soil is remarkable under loading, which will cause a significant deformation and affect the stability of infrastructure constructed in cold region. In this paper, the real-time computerized tomography tests of warm and ice-rich frozen silt were carried out. The microstructure characteristics in the process of loading were studied, and the macromechanical behaviors were obtained at the same time. The test results showed that the stress-strain curve of warm and ice-rich frozen silt is sensitive to temperature; the peak stress was greatly enhanced with the decrease of temperature, and the section area increases with the increase of axial strain; the water content mainly decreases with the increase of axial strain at −1°C; the change of water content is not obvious at −2°C in the loading process. The density damage changes little at first and then increases with the further increase of axial strain.http://dx.doi.org/10.1155/2015/379560 |
| spellingShingle | Yugui Yang Feng Gao Yuanming Lai Compressive Mechanical Properties and Micromechanical Characteristics of Warm and Ice-Rich Frozen Silt Advances in Materials Science and Engineering |
| title | Compressive Mechanical Properties and Micromechanical Characteristics of Warm and Ice-Rich Frozen Silt |
| title_full | Compressive Mechanical Properties and Micromechanical Characteristics of Warm and Ice-Rich Frozen Silt |
| title_fullStr | Compressive Mechanical Properties and Micromechanical Characteristics of Warm and Ice-Rich Frozen Silt |
| title_full_unstemmed | Compressive Mechanical Properties and Micromechanical Characteristics of Warm and Ice-Rich Frozen Silt |
| title_short | Compressive Mechanical Properties and Micromechanical Characteristics of Warm and Ice-Rich Frozen Silt |
| title_sort | compressive mechanical properties and micromechanical characteristics of warm and ice rich frozen silt |
| url | http://dx.doi.org/10.1155/2015/379560 |
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