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Coupled solid‐fluid FE‐analysis of geotechnical problems involving partially saturated soils
Author(s) -
Hofmann Matthias,
Pertl Michael,
Hofstetter Günter
Publication year - 2010
Publication title -
gamm‐mitteilungen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.239
H-Index - 18
eISSN - 1522-2608
pISSN - 0936-7195
DOI - 10.1002/gamm.201010003
Subject(s) - soil water , geotechnical engineering , effective stress , constitutive equation , pore water pressure , capillary action , stress (linguistics) , clay soil , geology , petroleum engineering , environmental science , soil science , materials science , finite element method , thermodynamics , composite material , physics , linguistics , philosophy
A numerical model for coupled solid‐fluid FE‐analyses of geotechnical problems involving partially saturated soils is described. As constitutive model for partially saturated soil serves the Barcelona Basic Model, which is formulated in terms of net stress and capillary pressure. Different stress update algorithms are compared for this model regarding the accuracy and efficiency. The application of the numerical model is demonstrated by numerical simulations of the impoundment of an earth dam and of the injection of compressed air into water saturated soil (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)