Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical analysis of the deep soil failure mechanism for perimeter pile groups
In this paper, the lateral limiting pressure offered by the deep flow-around' soil failure mechanism for perimeter (ring) pile groups in undrained soil is explored using two-dimensional finite-element (FE) modelling. A parametric study investigates the role of group configuration, pile-soil adhesion, group size, pile spacing and load direction on group capacity and corresponding soil failure mechanisms. The FE output shows that the plan group configuration (square or circular) has a negligible influence on lateral capacity for closely spaced perimeter pile groups. When compared to full' square pile groups with the same number of piles, the present results suggest that for practical pile spacing (3 two pile diameters), perimeter groups do not necessarily increase capacity efficiency, particularly if the piles are smooth. Nevertheless, perimeter groups are shown to be characterised by both the invariance of their capacity to the direction of loading and their highly uniform load-sharing between piles, which are beneficial features to optimise design.
Numerical analysis of the deep soil failure mechanism for perimeter pile groups
In this paper, the lateral limiting pressure offered by the deep flow-around' soil failure mechanism for perimeter (ring) pile groups in undrained soil is explored using two-dimensional finite-element (FE) modelling. A parametric study investigates the role of group configuration, pile-soil adhesion, group size, pile spacing and load direction on group capacity and corresponding soil failure mechanisms. The FE output shows that the plan group configuration (square or circular) has a negligible influence on lateral capacity for closely spaced perimeter pile groups. When compared to full' square pile groups with the same number of piles, the present results suggest that for practical pile spacing (3 two pile diameters), perimeter groups do not necessarily increase capacity efficiency, particularly if the piles are smooth. Nevertheless, perimeter groups are shown to be characterised by both the invariance of their capacity to the direction of loading and their highly uniform load-sharing between piles, which are beneficial features to optimise design.
Numerical analysis of the deep soil failure mechanism for perimeter pile groups
Watford, M. (Autor:in) / Templeman, J. (Autor:in) / Orazalin, Z. (Autor:in) / Zhou, H. (Autor:in) / Franza, Andrea (Autor:in) / Sheil, B. (Autor:in)
01.03.2022
Watford , M , Templeman , J , Orazalin , Z , Zhou , H , Franza , A & Sheil , B 2022 , ' Numerical analysis of the deep soil failure mechanism for perimeter pile groups ' , Geotechnique Letters , vol. 12 , no. 1 , pp. 27-34 . https://doi.org/10.1680/jgele.21.00080
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Numerical modelling of perimeter pile groups in clay
| British Library Online Contents | 2013
Numerical modelling of perimeter pile groups in clay
| Online Contents | 2013