The coefficient of earth pressure at rest

Gholamreza Mesri, T. M. Hayat

Research output: Contribution to journalArticlepeer-review


Laboratory experiments on undisturbed specimens of a large number of soft clay deposits, as well as previous measurements on clays and granular soils, were used to examine and explain the magnitude and behavior of the coefficient of earth pressure at rest, Ko. Empirical equations provide reasonable estimates of Ko for clays and granular soils after secondary-compression aging, after preconsolidation by unloading, and for soft clay deposits that display a preconsolidation pressure σ′p greater than in situ effective vertical stress σ′vo. Proposed empirical equations and methods successfully predict Ko of presheared clays. -from Authors

Original languageEnglish (US)
Pages (from-to)647-666
Number of pages20
JournalCanadian Geotechnical Journal
Issue number4
StatePublished - Jan 1 1993

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology


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