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DOI	10.1016/j.heliyon.2024.e27261
	Effect of repeated freeze-thaw cycles on mechanical properties of clay
	Jiang, Haiqiang; Han, Hongwei; Liu, Xingchao; Wang, Enliang; Fu, Qiang; Luo, Jing
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/293845
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	Jiang, Haiqiang,Han, Hongwei,Liu, Xingchao,et al. Effect of repeated freeze-thaw cycles on mechanical properties of clay[J],2024,10(5).
APA	Jiang, Haiqiang,Han, Hongwei,Liu, Xingchao,Wang, Enliang,Fu, Qiang,&Luo, Jing.(2024).Effect of repeated freeze-thaw cycles on mechanical properties of clay.HELIYON,10(5).
MLA	Jiang, Haiqiang,et al."Effect of repeated freeze-thaw cycles on mechanical properties of clay".HELIYON 10.5(2024).