Strength and Dilatancy of Intact and Reconstituted Sands from Atlantic Shores Offshore Wind Farm Development




Strength and Dilatancy of Intact and Reconstituted Sands from Atlantic Shores Offshore Wind Farm Development


Intact and disturbed samples of very dense sand acquired from the foundation zone sediments at Atlantic Shores offshore wind farm development were subjected to an experimental study consisting of laboratory drained triaxial compression tests performed under isotropic and K0 consolidation conditions. Triaxial specimens obtained from disturbed sand samples were reconstituted at the same dry density as the initial dry density of intact specimens. Experimental results are presented and discussed in terms of measured stress-strain response and associated strength and dilatancy parameters. Measured shear wave velocity from bender element tests performed on the triaxial specimens was used to evaluate intact sample quality by comparison with the in-situ shear wave velocity measured from seismic cone penetration tests, as well as to assess similarity between intact and reconstituted specimens. The study provides valuable insight into the ability of current laboratory testing practice involving reconstituted sand specimens to provide strength and dilatancy parameters representative for in-situ soil conditions.



Aurelian Trandafir; J. G. Fraser; Selina Kaur; Deanne Hargrave


5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025)



3 - Constitutive models and soil behaviour modelling



https://doi.org/10.53243/ISFOG2025-201