Constitutive modeling for frozen soil considering freezing temperature and cell pressure

Dongseop Lee, Khai Le Dinh, Hyun Jun Choi, Hyobum Lee, Dongku Kim, Hangseok Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The artificial ground freezing can be a highly potential, reliable and environmental friendly alternative to grouting for water-proof and reinforcement under difficult geologic conditions. After freezing, the pore water is converted to the ice phase and acts as a boding agent to increase the strength of frozen soil. Therefore, an additional tensile strength should be considered when dealing with frozen soils. However, a suitable constitutive model to describe the stress-strain relationship considering the tensile strength because the freezing phenomenon is not fully addressed yet. In the present laboratory experiment, a series of frozen soil triaxial tests was conducted. The soil samples were artificially frozen in various freezing temperatures and tested under different confining pressures. Also, in this paper, the novel constitutive model that can take into account the temperature effect on the stress-strain relationship is proposed. The proposed model is validated by the frozen soil triaxial tests results.

Original languageEnglish
Title of host publicationICSMGE 2017 - 19th International Conference on Soil Mechanics and Geotechnical Engineering
Publisher19th ICSMGE Secretariat
Pages431-434
Number of pages4
Publication statusPublished - 2017 Jan 1
Event19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017 - Seoul, Korea, Republic of
Duration: 2017 Sep 172017 Sep 22

Other

Other19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
CountryKorea, Republic of
CitySeoul
Period17/9/1717/9/22

Keywords

  • Artificial freezing technique
  • Constitutive model
  • Frozen soil
  • Subsea tunnel

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Lee, D., Le Dinh, K., Choi, H. J., Lee, H., Kim, D., & Choi, H. (2017). Constitutive modeling for frozen soil considering freezing temperature and cell pressure. In ICSMGE 2017 - 19th International Conference on Soil Mechanics and Geotechnical Engineering (pp. 431-434). 19th ICSMGE Secretariat.