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| DOI | 10.1016/j.heliyon.2024.e27261 |
| Effect of repeated freeze-thaw cycles on mechanical properties of clay | |
| 发表日期 | 2024 |
| EISSN | 2405-8440 |
| 起始页码 | 10 |
| 结束页码 | 5 |
| 卷号 | 10期号:5 |
| 英文摘要 | To investigate the variation in the mechanical properties of clay under freeze-thaw cycles (FTCs), a series of experiments were conducted in the laboratory. Samples with different water contents and dry densities were subjected to FTCs ranging from 0 to 11 times. Then, cohesion, shear strength, internal friction angle and elastic modulus were obtained using triaxial test. The results show that with the increase in the number of FTCs, the shear strength, cohesion and elastic modulus decreased, while the internal friction angle increased slightly. However, the variation in the internal friction angle is not obvious, and the maximum increment is within 4 degrees. The cohesion exhibited the most decrease after the first freeze-thaw action. Besides, under a same number of FTCs, four mechanical properties are significantly affected by water content and dry density. The shear strength, cohesion, elastic modulus and internal friction angle decrease with water content while increasing with dry density. Additionally, the elastic modulus is associated with confining pressure, which increases with confining pressure. This study provides evidence for the variation in mechanical properties of the soils subjected to FTCs and guides the design and construction of the cold regional engineering. |
| 英文关键词 | Freeze-thaw cycles; Clay; Cohesion; Internal friction angle; Elastic modulus |
| 语种 | 英语 |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:001209816400001 |
| 来源期刊 | HELIYON
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/293844 |
| 作者单位 | Northeast Agricultural University - China; Northeast Agricultural University - China; Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | . Effect of repeated freeze-thaw cycles on mechanical properties of clay[J],2024,10(5). |
| APA | (2024).Effect of repeated freeze-thaw cycles on mechanical properties of clay.HELIYON,10(5). |
| MLA | "Effect of repeated freeze-thaw cycles on mechanical properties of clay".HELIYON 10.5(2024). |
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