Frost heave in colloidal soils

Stephen Peppin, Apala Majumdar, Robert Style, Graham Sander

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We develop a mathematical model of frost heave in colloidal soils. The theory accounts for heave and consolidation while not requiring a frozen fringe assumption. Two solidification regimes occur: a compaction regime in which the soil consolidates to accommodate the ice lenses, and a heave regime during which liquid is sucked into the consolidated soil from an external reservoir, and the added volume causes the soil to heave. The ice fraction is found to vary inversely with the freezing velocity V, while the rate of heave is independent of V, consistent with field and laboratory observations.

Original languageEnglish
Pages (from-to)1717–1732
Number of pages16
JournalSIAM Journal on Applied Mathematics
Volume71
Issue number5
DOIs
Publication statusPublished - 22 Sep 2011

Keywords

  • colloidal soils
  • frost heave
  • mathematical model
  • colloids
  • Lie–Bäcklund transformation

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