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Effect Of Temperature And Confining Pressure On Mechanical Characteristics Of Frozen Gravelly Soil

Submitted2021-10-16
Last Update2022-03-24
TitleEffect Of Temperature And Confining Pressure On Mechanical Characteristics Of Frozen Gravelly Soil
Author(s)Author #1
Author title:Doctor
Name: Junlin He
Org: South China University of Technology
Country: China
Email: hejunlin0118@163.com

Author #2
Author title:Professor
Name: Fujun Niu
Org: South China University of Technology
Country: China
Email: niufj@scut.edu.cn

Author #3
Author title:Doctor
Name: Fei Luo
Org: Sichuan Agricultural University
Country: China
Email: 1447151511@qq.com

Author #4
Author title:Doctor
Name: Haiqiang Jiang
Org: South China University of Technology
Country: China
Email: hqiangjiang@126.com

Other Author(s)
Contact AuthorAuthor #1
Alt Email: 393844486@qq.com
Telephone: +8618380439110
Keywordsrozen gravelly soil; temperature effects; strength characteristics; elastic modulus
AbstractGravelly soil is widely used in cold regions engineering as a filler material, and the research on the strength characteristics is the basis for the design and maintenance of frozen gravelly soil engineering. To investigate the strength characteristics of frozen gravelly soil, a series of tri-axial tests were carried at various negative temperatures and confining pressures. The experimental results demonstrate that the deviatoric stress-axial strain curve of frozen gravelly soil is characterized by three stages. The strength of frozen gravelly soil is significantly affected by confining pressure and temperature, and the strength increases with the decrease in temperature and the increase in confining pressure. The E0 and E0.5 of frozen gravelly soil increase as temperature decreases. In addition, E0 is extremely sensitive to changes in confining pressure, and E0 increases with the increase in confining pressure, while E0.5 changes with less regularity with confining pressure.
Paperview paper 6276.pdf (1125KB)

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