Numerical analysis of the axially loaded piles in sand by considering soil-pile interaction
Numerical analysis of the axially loaded piles in sand by considering soil-pile interaction
Numerical simulation of shaft resistance in axially loaded piles has been a key subject in geotechnical designs. In this study, the application of a numerical modelling approach so-called Hybrid-Winkler-Interface (HWI) for simulating pile behaviour in sands under axial load is studied. The HWI is a hybrid formulation including beam elements, Winkler springs and a layer of solid thin-layer interface element formulated in a bounding surface and critical state soil mechanics framework. The HWI input parameters have physical meanings, and they can be calibrated using standard shear tests. The approach can simulate complex behaviours in soil-pile interaction systems including: hardening/softening, compaction/dilation, accumulative contraction, and stress degradation. In this study, the frictional resistance of soil-pile systems embedded in sands with different densities and surface roughness under axial loads with different amplitudes are numerically simulated by considering advanced soil-pile interface effects. The numerical predictions are verified against available observations published in the literature.
Miad Saberi; W. Byron Byrne; H. J. Burd
10th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE2023)
9. Shallow and deep foundations
https://doi.org/10.53243/NUMGE2023-230
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