1. Numerical modeling of disconnected piles-raft foundation under static loading in clayey soil.
- Author
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Alkaby, Sajjad R. and Karkush, Mahdi
- Subjects
- *
DEAD loads (Mechanics) , *CLAY soils , *BUILDING foundations , *FINITE element method , *SANDY soils , *COMPOSITE columns - Abstract
There has been a rising interest in evaluating piled-raft foundations in order to account for the integrated impact of rafts and piles in order to provide a more efficient solution during the past several decades. The raft is separated from the piles by a cushion of sandy soil or gravel, and this method is called the Disconnected piled raft foundation (DCPRF). The load is redistributed between the raft and the piles via the cushion. This study used PLAXIS-3D finite element analysis software to investigate the maximum settlement and axial force on the pile head. Verification with the Messe-Torhaus building, Frankfurt, the effects of cushion, cushion thickness, and geogrid were investigated. The study showed the ratio between the connected piled raft foundation (CPRF) and disconnected piled raft foundation (DCPRF) for the maximum settlement is 9.5%, while the axial force on the head of the pile decreased by 40% of that in CPRF. The maximum settlement decreased with increasing the number of geogrid layers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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