A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Scour effects on lateral responses of pile groups in clays
Abstract In contrast to single piles, pile groups experience more capacity loss by scour due to not only geotechnical group effect but also hydraulic group effect. However, existing standards only include design considerations for scoured single piles, and scour effects on lateral responses of pile groups are not fully appreciated. This study proposes a practical method to analyze lateral responses of pile groups in soft clays affected by local scour. The proposed method was verified against the results of 3D continuum finite element (FE) models, in which the baseline no-scour 3D FE model was established based on a reported full-scale load test. Parametric analyses were conducted to investigate the effects of scour-hole dimensions and pile group configurations on the lateral responses of pile groups in soft clays. The suitability of applying the methods specified in the various standards for a scoured single isolated pile to a scoured pile group was assessed by comparing them with the proposed method and 3D FE analyses. The results also highlighted the importance of the hydraulic group effect in the evaluation of lateral behavior of scoured pile groups. This research recommends a rectangular pile group shape with greater pile spacing in the foundation design against scour.
Scour effects on lateral responses of pile groups in clays
Abstract In contrast to single piles, pile groups experience more capacity loss by scour due to not only geotechnical group effect but also hydraulic group effect. However, existing standards only include design considerations for scoured single piles, and scour effects on lateral responses of pile groups are not fully appreciated. This study proposes a practical method to analyze lateral responses of pile groups in soft clays affected by local scour. The proposed method was verified against the results of 3D continuum finite element (FE) models, in which the baseline no-scour 3D FE model was established based on a reported full-scale load test. Parametric analyses were conducted to investigate the effects of scour-hole dimensions and pile group configurations on the lateral responses of pile groups in soft clays. The suitability of applying the methods specified in the various standards for a scoured single isolated pile to a scoured pile group was assessed by comparing them with the proposed method and 3D FE analyses. The results also highlighted the importance of the hydraulic group effect in the evaluation of lateral behavior of scoured pile groups. This research recommends a rectangular pile group shape with greater pile spacing in the foundation design against scour.
Scour effects on lateral responses of pile groups in clays
Jiang, Wenyu (author) / Lin, Cheng (author)
2022-05-28
Article (Journal)
Electronic Resource
English
| British Library Conference Proceedings | 2000
Lateral load behaviour of pile and pile groups in soft clays
| British Library Conference Proceedings | 2003
Clear-Water Scour at Pile Groups
| British Library Online Contents | 2013
Clear-Water Scour at Pile Groups
| Online Contents | 2013