Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Influence of raft rigidity for piled rafts resting on stratified subsoil
Raft rigidity is one of the governing factors that control the performance of piled rafts; it influences the interactions of the raft with the piles and the soil. By employing extensive three-dimensional Finite Element Analyses, the effects of raft stiffness on the absolute and differential settlements of piled rafts were investigated with the aim of achieving optimal design with limited number of piles. An appropriate constitutive model was applied to simulate the soil behavior, whose parameters were calibrated using pile load test measurements. While raft thickness is found to have minor effects on the settlements of piled rafts with closely spaced piles, a range of raft-soil stiffness ratios between 0.03 and 0.08 are found to minimize settlements for the case of widely spaced piles. Rigid rafts with raft-soil-stiffness ratios higher than 0.1 are recommended to be avoided for not enhancing the performance of the foundation.
Influence of raft rigidity for piled rafts resting on stratified subsoil
Raft rigidity is one of the governing factors that control the performance of piled rafts; it influences the interactions of the raft with the piles and the soil. By employing extensive three-dimensional Finite Element Analyses, the effects of raft stiffness on the absolute and differential settlements of piled rafts were investigated with the aim of achieving optimal design with limited number of piles. An appropriate constitutive model was applied to simulate the soil behavior, whose parameters were calibrated using pile load test measurements. While raft thickness is found to have minor effects on the settlements of piled rafts with closely spaced piles, a range of raft-soil stiffness ratios between 0.03 and 0.08 are found to minimize settlements for the case of widely spaced piles. Rigid rafts with raft-soil-stiffness ratios higher than 0.1 are recommended to be avoided for not enhancing the performance of the foundation.
Influence of raft rigidity for piled rafts resting on stratified subsoil
Gebregziabher, Henok Fikre (Autor:in) / Achmus, Martin (Autor:in)
International Journal of Geotechnical Engineering ; 16 ; 532-539
28.05.2022
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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