Numerical simulation of the installation process of full displacement piles |
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| Institution: | 1. Chair of Soil Mechanics and Geotechnical Engineering, Technische Universität Berlin, Secr. TIB1-B7, Gustav-Meyer-Allee 25, D-13355 Berlin, Germany;2. Department of Geotechnical Engineering, Ostbayerische Technische Hochschule Regensburg, Prüfeninger Str. 58, D-93049 Regensburg, Germany;3. Institute of Continuum Mechanics, Gottfried Wilhelm Leibniz Universität Hannover, Appelstr. 11, D-30167 Hannover, Germany;1. Unit Geoengineering, Deltares, The Netherlands;2. Faculty of Civil Engineering and Geosciences, Delft University of Technology, Deltares, Delft, The Netherlands;3. Faculty of Civil Engineering and Geosciences, Delft University of Technology and Manager Research & Projects, PLAXIS BV, Delft, The Netherlands;1. Hamburg University of Technology, Institute of Geotechnical Engineering and Construction Management, Harburger Schloßstraße 20, D-21079 Hamburg, Germany;2. IMPaC Offshore Engineering, Hohe Bleichen 5, D-20354 Hamburg, Germany |
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| Abstract: | Numerical simulations of the installation process of full displacement piles are presented. A Coupled Eulerian–Lagrangian approach is used to simulate the installation process. The influence of different ratios between the rotational and the penetration velocity are analyzed. A hypoplastic constitutive model is used to match the soils behavior realistically. The reaction forces of the drilling tool are determined. Furthermore, the influence of the surrounding soil is investigated. The displacements nearby the drilling tool are analyzed as well as changes of the stress state and the bulk density. The numerical results are used to explain the effects in the soil, that were observed during in situ measurements. |
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