Oedometer Creep Tests of a Partially Saturated Kaolinite Clay

  • Piotr Kierzkowski
Part of the Springer Proceedings in Physics book series (SPPHY, volume 112)


In the following paper an influence of several state parameters on one dimensional time-dependent material behaviour of an unsaturated soil is presented. For identification of parameter values, laboratory experiments were performed. Standard oedometric compression tests were carried out to investigate stress-strain-time relationships. Apart from the degree of saturation the initial void ratio vary as parameters. For measuring the matrix suction a tensiometer is mounted inside the specimen. A detailed description of the equipment used and the test procedures are given in the paper. The tests reported here were carried out with a kaolinite to determine parameter values, depending on different state variables. The characteristic behaviour of unsaturated samples observed during consolidation and creeping is shown in a series of figures. Parameters like Cc, Cs and Cα are used in constitutive model that can simulate both consolidation processes as well as creep phenomenon for partially saturated clay in a single consistent analysis.

Key Words

kaolinite oedometer creep partially saturated clay suction 


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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Piotr Kierzkowski
    • 1
  1. 1.Division of Soil Mechanics and Foundation EngineeringTechnical University of KaiserslauternKaiserslauternGermany

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