Effects of Freezing and Thawing Cycle on Mechanical Properties and Stability of Soft Rock Slope
To explore the variation laws of mechanical parameters of soft rock and the formed slope stability, an experiment was carried out with collected soft rock material specimens and freezing and thawing cycle was designed. Meanwhile, a computational simulation analysis of the freezing-thawing slope stab...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/3173659 |
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| _version_ | 1832565100171493376 |
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| author | Yanlong Chen Peng Wu Qing Yu Guang Xu |
| author_facet | Yanlong Chen Peng Wu Qing Yu Guang Xu |
| author_sort | Yanlong Chen |
| collection | DOAJ |
| description | To explore the variation laws of mechanical parameters of soft rock and the formed slope stability, an experiment was carried out with collected soft rock material specimens and freezing and thawing cycle was designed. Meanwhile, a computational simulation analysis of the freezing-thawing slope stability was implemented. Key factors that influence the strength of frozen rock specimens were analyzed. Results showed that moisture content and the number of freezing-thawing cycles influenced mechanical parameters of soft rock significantly. With the increase of moisture content, cohesion of frozen soft rock specimens presents a quadratic function decrease and the internal friction angle shows a negative exponential decrease. The stability coefficient of soft rock material slope in seasonal freeze soil area declines continuously. With the increase of freezing and thawing cycle, both cohesion and internal friction angle of soft rock decrease exponentially. The higher the moisture content, the quicker the reduction. Such stability coefficient presents a negative exponential reduction. After three freezing and thawing cycles, the slope stability coefficient only changes slightly. Findings were finally verified by the filed database. |
| format | Article |
| id | doaj-art-55f86dc919ae4ee6b57910d7247d03ab |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-55f86dc919ae4ee6b57910d7247d03ab2025-02-03T01:09:25ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/31736593173659Effects of Freezing and Thawing Cycle on Mechanical Properties and Stability of Soft Rock SlopeYanlong Chen0Peng Wu1Qing Yu2Guang Xu3State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology, Xuzhou 221116, ChinaSchool of Mines, China University of Mining & Technology, Xuzhou 221116, ChinaSchool of Resources and Geosciences, China University of Mining & Technology, Xuzhou 221116, ChinaDepartment of Mining Engineering & Metallurgical Engineering, Western Australian School of Mines, Curtin University, Kalgoorlie, WA 6430, AustraliaTo explore the variation laws of mechanical parameters of soft rock and the formed slope stability, an experiment was carried out with collected soft rock material specimens and freezing and thawing cycle was designed. Meanwhile, a computational simulation analysis of the freezing-thawing slope stability was implemented. Key factors that influence the strength of frozen rock specimens were analyzed. Results showed that moisture content and the number of freezing-thawing cycles influenced mechanical parameters of soft rock significantly. With the increase of moisture content, cohesion of frozen soft rock specimens presents a quadratic function decrease and the internal friction angle shows a negative exponential decrease. The stability coefficient of soft rock material slope in seasonal freeze soil area declines continuously. With the increase of freezing and thawing cycle, both cohesion and internal friction angle of soft rock decrease exponentially. The higher the moisture content, the quicker the reduction. Such stability coefficient presents a negative exponential reduction. After three freezing and thawing cycles, the slope stability coefficient only changes slightly. Findings were finally verified by the filed database.http://dx.doi.org/10.1155/2017/3173659 |
| spellingShingle | Yanlong Chen Peng Wu Qing Yu Guang Xu Effects of Freezing and Thawing Cycle on Mechanical Properties and Stability of Soft Rock Slope Advances in Materials Science and Engineering |
| title | Effects of Freezing and Thawing Cycle on Mechanical Properties and Stability of Soft Rock Slope |
| title_full | Effects of Freezing and Thawing Cycle on Mechanical Properties and Stability of Soft Rock Slope |
| title_fullStr | Effects of Freezing and Thawing Cycle on Mechanical Properties and Stability of Soft Rock Slope |
| title_full_unstemmed | Effects of Freezing and Thawing Cycle on Mechanical Properties and Stability of Soft Rock Slope |
| title_short | Effects of Freezing and Thawing Cycle on Mechanical Properties and Stability of Soft Rock Slope |
| title_sort | effects of freezing and thawing cycle on mechanical properties and stability of soft rock slope |
| url | http://dx.doi.org/10.1155/2017/3173659 |
| work_keys_str_mv | AT yanlongchen effectsoffreezingandthawingcycleonmechanicalpropertiesandstabilityofsoftrockslope AT pengwu effectsoffreezingandthawingcycleonmechanicalpropertiesandstabilityofsoftrockslope AT qingyu effectsoffreezingandthawingcycleonmechanicalpropertiesandstabilityofsoftrockslope AT guangxu effectsoffreezingandthawingcycleonmechanicalpropertiesandstabilityofsoftrockslope |