Time dependence of lateral earth pressure

Edward Kavazanjian, James K. Mitchell

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Both theoretical analysis and laboratory test data indicate that for normally consolidated soft clays the coefficient of lateral earth pressure at rest, Ko, gradually increases with time. Physical reasonining suggests that for all soils Ko should asymptotically approach unity. This reasoning implies that for overconsolidated soils with initial values of Ko greater than one, Ko should decrease with time. The time dependence of Ko has significant implications with respect to how the value of Ko measured in laboratory tests relates to in-situ values of Ko.

Original languageEnglish (US)
Pages (from-to)530-533
Number of pages4
JournalJournal of Geotechnical Engineering
Issue number4
StatePublished - Dec 1984
Externally publishedYes

ASJC Scopus subject areas

  • General Environmental Science
  • General Earth and Planetary Sciences


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