Influence of anisotropic small strain stiffness on the deformation behavior of geotechnical structures

Bert Schädlich, Helmut F. Schweiger

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Constitutive models based on the multilaminate framework naturally account for strain-induced anisotropy, but inherent anisotropy needs additional considerations. A recently introduced feature is the capability of the model to take into account anisotropic elasticity in the small strain range. The implications of taking into account anisotropy of small strain stiffness for the analysis of geotechnical problems is addressed in this paper by solving two relatively simple benchmark problems: a deep excavation and a strip footing. It follows from these studies that, if displacements and thus strains remain moderate (which is often the case for these types of problems), the influence of small strain stiffness anisotropy is more pronounced compared with problems where relatively large strains occur. However, the influence of stiffness anisotropy can be approximately accounted for by using the average of the axial stiffnesses.

Original languageEnglish
Pages (from-to)861-868
Number of pages8
JournalInternational Journal of Geomechanics
Volume13
Issue number6
DOIs
Publication statusPublished - 26 Nov 2013

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stiffness
anisotropy
footing
elasticity
elasticity (mechanics)
excavation

Keywords

  • Anisotropic small strain stiffness
  • Multilaminate model

ASJC Scopus subject areas

  • Soil Science

Cite this

Influence of anisotropic small strain stiffness on the deformation behavior of geotechnical structures. / Schädlich, Bert; Schweiger, Helmut F.

In: International Journal of Geomechanics, Vol. 13, No. 6, 26.11.2013, p. 861-868.

Research output: Contribution to journalArticleResearchpeer-review

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