A simple rheological element based creep model for frozen soils

S. Wang, J. Qi, Zhenyu Yin, J. Zhang, W. Ma

Research output: Journal article publicationJournal articleAcademic researchpeer-review

42 Citations (Scopus)

Abstract

Creep of frozen soils is one of the most important issues in cold regions engineering. This paper first reviews the state-of-the-art of creep models for frozen soils. It is found that the elementary rheological models are more feasible in describing the creep of frozen soils. The authors propose a simple model by combining Maxwell, Kelvin and Bingham body, with a parabolic yield criterion. The model is verified by the direct shear creep tests on frozen fine sand, and the calculated creep strains agree in general with test data. A field loading test in Beiluhe site along Qinghai-Tibet railway is modeled on FLAC platform with the proposed model and the simulated settlement of underlying warm and ice-rich permafrost well coincide with the in situ monitored data. © 2014 Elsevier B.V.
Original languageEnglish
Pages (from-to)47-54
Number of pages8
JournalCold Regions Science and Technology
Volume106-107
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes

Keywords

  • Constitutive model
  • Creep
  • Field loading test
  • Frozen soils

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Earth and Planetary Sciences(all)

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