Field and laboratory measured values of Ko in Chicago clay

R. J. Finno, J. Benoit, C. K. Chung

Research output: Contribution to journalArticlepeer-review


Horizontal stresses in Chicago glacial clays were measured in situ with a self-boring pressuremeter (SBPM). The lightly overconsolidated, saturated clays contained gravel-sized particles throughout the deposit requiring the use of jetting to insert the SBPM. Values of Ko from the SBPM results were computed using pore pressure data from pneumatic piezometers. The effects of jetting, the presence of gravel, and stress history, on the observed response are discussed. -from Authors

Original languageEnglish (US)
Pages (from-to)331-340
Number of pages10
JournalUnknown Journal
StatePublished - 1990

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)


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