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Vibratory pile driving in water-saturated sand: Back-analysis of model tests using a hydro-mechanically coupled CEL method

Staubach, Patrick ; Machaček, Jan ; Skowronek, Josefine ; Wichtmann, Torsten (2022):
Vibratory pile driving in water-saturated sand: Back-analysis of model tests using a hydro-mechanically coupled CEL method. (Publisher's Version)
In: Soils and Foundations, 61 (1), pp. 144-159. Elsevier, ISSN 0038-0806,
DOI: 10.26083/tuprints-00020460,
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Item Type: Article
Origin: Secondary publication service
Status: Publisher's Version
Title: Vibratory pile driving in water-saturated sand: Back-analysis of model tests using a hydro-mechanically coupled CEL method
Language: English
Abstract:

The development of a hydro-mechanically coupled Coupled-Eulerian–Lagrangian (CEL) method and its application to the back-analysis of vibratory pile driving model tests in water-saturated sand is presented. The predicted pile penetration using this approach is in good agreement with the results of the model tests as well as with fully Lagrangian simulations. In terms of pore water pressure, however, the results of the CEL simulation show a slightly worse accordance with the model tests compared to the Lagrangian simulation. Some shortcomings of the hydro-mechanically coupled CEL method in case of frictional contact problems and pore fluids with high bulk modulus are discussed. Lastly, the CEL method is applied to the simulation of vibratory driving of open-profile piles under partially drained conditions to study installation-induced changes in the soil state. It is concluded that the proposed method is capable of realistically reproducing the most important mechanisms in the soil during the driving process despite its addressed shortcomings.

Journal or Publication Title: Soils and Foundations
Volume of the journal: 61
Issue Number: 1
Publisher: Elsevier
Classification DDC: 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften
Divisions: 13 Department of Civil and Environmental Engineering Sciences > Institute of Geotechnics
Date Deposited: 10 Feb 2022 13:22
Last Modified: 10 Feb 2022 13:22
DOI: 10.26083/tuprints-00020460
URL / URN: https://doi.org/10.1016/j.sandf.2020.11.005
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-204602
Additional Information:

Keywords: Vibratory pile driving, Coupled-Eulerian–Lagrangian, Hydro-mechanically coupled, Hypoplasticity, Relative acceleration, Large deformation

URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20460
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