Pore pressure development during non-uniform cyclic loading

Jaw Nan Wang, Edward Kavazanjian

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Results of non-uniform cyclic triaxial tests on Monterey #0 sand are presented. Two series of tests are performed in which the number and magnitude of stress cycles are unchanged but the order in which the cycles are applied varies. Results of these tests show that pore pressure generation depends upon the order as well as the magnitude of the non-uniform stress cycles. To account for this dependence, a pore pressure generation model which accounts for the influence of cyclic shear stress ratio upon the shape of the pore pressure generation curve is developed. Pore pressures calculated using the stress ratio dependent model show good agreement with laboratory test results except when some of the applied stress cycles are below the threshold stress level causing liquefaction in uniform cyclic loading.

Original languageEnglish (US)
Pages (from-to)1-14
Number of pages14
JournalSoils and Foundations
Issue number2
StatePublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology


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