| Issue |
E3S Web of Conf.
Volume 544, 2024
8th International Symposium on Deformation Characteristics of Geomaterials (IS-Porto 2023)
|
|
|---|---|---|
| Article Number | 14003 | |
| Number of page(s) | 5 | |
| Section | Behaviour, Characterization and Modelling of Various Geomaterials and Interfaces - Sensitive and Liquefiable Soils: Tailings and Other Highly Brittle Strain-Softening Soils | |
| DOI | https://doi.org/10.1051/e3sconf/202454414003 | |
| Published online | 02 July 2024 | |
Undrained shear strength of soils with fine fraction content derived from compression and extension loading triaxial tests
1 GEOTEKO Geotechnical Consultants Ltd, 14/16 Wałbrzyska St, 02-739 Warsaw, Poland
2 KGHM Polska Miedź S.A, Hydrotechnical Division, 52 Polkowicka St, 59-305 Rudna, Poland
* Corresponding author: wojciech.tyminski@geoteko.com.pl
In the stability analysis of dams or deep excavations a calculation scheme of soil response is assumed that considers the rotation of main stresses. In the case of tailings dams constructed of granular material with fine fraction content (FC <0.075 mm), an additional factor is to be considered i.e. liquefaction phenomenon. Soil response to undrained shearing in compression loading (increase of vertical stress) and extension loading (increase of horizontal stress) differs significantly, giving various strength values. The paper presents the results of triaxial tests carried out on soils with fine fraction content. The tests were performed under compression loading and extension loading conditions. The test results’analysis was performed, considering grain size impact and main stresses application method at the shearing stage.
Key words: compression and extension loading triaxial tests / tailings / fine fraction
© The Authors, published by EDP Sciences, 2024
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