Numerical analysis on the mechanical response of grouted connection for pile-bucket foundation

Li, Lichen; Liu, Hao; Jiang, Guosheng; Liu, Zhuo; El Naggar, M. Hesham; Wu, Wenbing

doi:10.1016/j.oceaneng.2023.115790

Cited by 7 publications

(2 citation statements)

References 30 publications

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“…Li et al [13] studied the influence of grouting connections on the load-bearing characteristics of pile-bucket composite foundations. Wang et al [5] and Li et al [14] explored the impact of mixed foundation on horizontal load-bearing capacity through model tests, asserting that a pile-bucket composite foundation significantly improved lateral forces and enhanced the mobilization efficiency of shallow soil resistance.…”

Section: Introductionmentioning

confidence: 99%

The Horizontal Bearing Characteristics and Microscopic Soil Deformation Mechanism of Pile-Bucket Composite Foundation in Sand

Zhang,

Yu,

Zhu

et al. 2024

Applied Sciences

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The pile-bucket composite foundation represents an innovative foundation form that surpasses the horizontal bearing performance of both single bucket-shaped foundations and pile foundations. The intricate interplay between piles and buckets introduces the complexity of the factors influencing the bearing performance of composite foundations under horizontal loads. In this paper, the indoor model tests were conducted to investigate the effects of relative density and pile-to-barrel diameter ratio on the horizontal bearing capacity and surrounding soil pressure of the pile-bucket composite foundation. A sensitivity analysis on the bearing characteristics of the pile-bucket foundation was performed using ABAQUS/CAE 2020 software. The results reveal a consistent variation in load–displacement curves across diverse diameter ratios of piles to buckets. The pile-bucket diameter ratio significantly impacts the horizontal bearing characteristics of the composite foundation. Reducing the pile-bucket diameter ratio improves the horizontal bearing capacity of the composite foundation. When the diameter ratio of piles to buckets diminishes to ≤0.317, the influence of this ratio on bearing performance becomes markedly pronounced. The displacement range of the surface soil decreases with an increase in relative density, while the influence depth of the surrounding soil of the composite foundation significantly decreases as the pile-to-barrel diameter ratio decreases.

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Section: Introductionmentioning

confidence: 99%

The Horizontal Bearing Characteristics and Microscopic Soil Deformation Mechanism of Pile-Bucket Composite Foundation in Sand

Zhang,

Yu,

Zhu

et al. 2024

Applied Sciences

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“…In the same year, Hong et al [22] performed centrifugal model tests on semi-rigid piles in soft clay soils and investigated the cumulative deformation characteristics of monopiles under horizontal cyclic loading, concluding that the variation in the horizontal displacement of the pile top with the load amplitude and the number of cycles was primarily caused by the cumulative deformation of the soil surrounding the pile induced by horizontal cyclic loading. Recently, numerous scholars have conducted studies on the effects of the pile diameter and bucket diameter on the horizontal bearing capacity of pile-bucket composite foundations [23][24][25]. Yuan et al [26] consider that the bucket diameter has a greater effect on the p-y curve and horizontal bearing capacity of composite piles compared with the bucket height, while Zhang et al [27] consider that the ratio of pile and bucket diameters has a significant effect on the horizontal bearing characteristics.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Mechanical Behavior of Skirt–Pile Foundations in Saturated Clay under Horizontal Load

Fan,

Duan,

Wang

et al. 2024

Applied Sciences

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Skirt–pile foundations have gained widespread attention in the field of offshore engineering due to their ease of installation and high bearing capacity. In this study, the ultimate bearing capacity, pile bending moment distribution and development, cumulative deformation characteristics, and cyclic stiffness development of skirt–pile foundations were investigated using physical model tests. The experimental results indicate that the ultimate bearing capacity and deformation resistance of the foundation can effectively be improved by increasing the skirt diameter. The cumulative deformation of the skirt–piles exhibited rapid development during the initial stages of cyclic loading, eventually stabilizing. Under long-term cyclic loading, the existence of the skirt can share the bending moment, which then affects the internal force distribution of the pile foundation along the axis. The pile foundation’s cyclic stiffness reduces as the loading cycles increase and increases as the skirt diameter and length grow. Meanwhile, the horizontal cyclic stiffness decreases as the number of cycles increases, stabilizing after 3000 cycles. This study can not only deepen the understanding of the deformation laws of skirt–pile foundations in clay soil but also offers some references for the design of offshore pile foundations.

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Effect of soil stiffness on end bearing resistance of foundations in clay from large deformation numerical modelling

Zhou,

Zhang,

Osman

2024

Computers and Geotechnics

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Numerical analysis on the mechanical response of grouted connection for pile-bucket foundation

Cited by 7 publications

References 30 publications

The Horizontal Bearing Characteristics and Microscopic Soil Deformation Mechanism of Pile-Bucket Composite Foundation in Sand

The Horizontal Bearing Characteristics and Microscopic Soil Deformation Mechanism of Pile-Bucket Composite Foundation in Sand

Experimental Study on Mechanical Behavior of Skirt–Pile Foundations in Saturated Clay under Horizontal Load

Effect of soil stiffness on end bearing resistance of foundations in clay from large deformation numerical modelling

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