Options
Numerical study of the installation of piles combining the zipper and CEL methods
Publikationstyp
Conference Paper
Date Issued
2025-06
Sprache
English
Start Page
5376
End Page
5391
Citation
10th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2025
Publisher DOI
Publisher
Institute of Structural Analysis and Antiseismic Research National Technical University of Athens
ISBN of container
978-6-1858-2706-9
978-6-1858-2704-5
Simulating the installation effects of piles in numerical finite element models is often neglected due to the complexities of modeling large soil displacements under dynamic loads. This study presents a novel combined modelling approach that integrates two distinct numerical techniques: the zipper method for vibratory driving and the Coupled Eulerian-Lagrangian (CEL) approach for impact driving. This comprehensive simulation captures the complete installation process of a king pile (I-profile). Three-dimensional finite element models in Abaqus are employed to simulate the initial vibratory phase, followed by a seamless transfer of stress states and solution-dependent variables to the CEL model with nearly similar geometry for impact driving simulation. The numerical results reveal significant installation-induced changes in soil state, including void ratio distribution and effective stress patterns, consistent with existing literature. Subsequent static load tests indicate that considering both vibratory and impact driving phases results in notably different predictions of axial capacity. Specifically, simulations that include the vibratory phase show a 14% increase in skin friction and a 13% increase in compressive resistance compared to those that neglect it. This study proposes a promising numerical framework for modeling complex pile installation processes and their effects on soil-structure interaction. The findings provide valuable insights for designing efficient pile foundation systems.
Subjects
numerical analysis
CEL
zipper method
pile installation
pile-soil interaction
DDC Class
690: Building, Construction