An experimental and numerical study on the influence of inherent and induced anisotropy of a fine-grained soil
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Publication date
2026
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01A - Journal article
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Acta Geotechnica
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Volume
21
Issue / Number
4
Pages / Duration
1923-1949
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Springer
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Abstract
This study investigates the inherent and induced anisotropy of reconstituted kaolin samples through a series of triaxial tests in both extension and compression under various preloading conditions. Triaxial specimens were extracted from pre-consolidated cylinders either in the vertical or horizontal direction to assess anisotropic behaviour. Additionally, different preshearing steps were applied to examine their influence on inherent anisotropy. Numerical simulations using the modified Cam Clay model and the anisotropic visco-hypoplastic model failed to capture the effects of inherent anisotropy. To address this limitation, the latter model was extended by incorporating a cross-isotropic elastic stiffness formulation. By increasing the number of parameters and model complexity, this study systematically evaluates which parameters and mathematical formulations are essential for accurately describing the stiffness anisotropy of reconstituted fine-grained soils.
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1861-1125
1861-1133
1861-1133
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Publication status
Published
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peer-reviewed
Open access category
Hybrid
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Citation
Tafili, M., Gehring, S., Knittel, L., Wichtmann, T., & Stutz, H. H. (2026). An experimental and numerical study on the influence of inherent and induced anisotropy of a fine-grained soil. Acta Geotechnica, 21(4), 1923–1949. https://doi.org/10.1007/s11440-025-02913-3