Oblique Uplift Bearing Characteristics of Rigid Anchor Piles in Dense Sand

HUANG Ting; LUO Chengwei; JIAO Ao; DAI Guoliang

doi:10.13204/j.gyjzG22011905

Volume 53 Issue 3

Mar. 2023

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HUANG Ting, LUO Chengwei, JIAO Ao, DAI Guoliang. Oblique Uplift Bearing Characteristics of Rigid Anchor Piles in Dense Sand[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(3): 180-187. doi: 10.13204/j.gyjzG22011905

Citation:

HUANG Ting, LUO Chengwei, JIAO Ao, DAI Guoliang. Oblique Uplift Bearing Characteristics of Rigid Anchor Piles in Dense Sand[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(3): 180-187. doi: 10.13204/j.gyjzG22011905

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Oblique Uplift Bearing Characteristics of Rigid Anchor Piles in Dense Sand

doi: 10.13204/j.gyjzG22011905

1. College of Harbor, Coastal and Offshore Engineering, Hohai University, Nanjing 210024, China;
2. School of Civil Engineering, Southeast University, Nanjing 211189, China

Received Date: 2022-01-19

Abstract

Abstract

As one of the important foundation types of mooring systems in marine structures, rigid anchor piles often bear oblique upward pulling loads, and the mechanism of oblique uplift resistance is more complex than that of flexible piles. Through numerical simulations and theoretical analysis, the influence of loading modes and pile-soil interface friction coefficients on the oblique uplift capacity of anchor piles was studied. Based on the finite element numerical model, the failure envelope surfaces of anchor piles in different loading modes and friction coefficients were obtained, and it was found that the oblique uplift capacity of anchor piles was significantly influenced by loading modes. Due to the limitation of Mohr-Coulomb Constitutive Model, it was difficult for numerical models to accurately simulate the vertical uplift properties of anchor piles with rough appearances. With the increase of friction coefficients, the vertical uplift capacity of anchor piles increased because of the development of fracture toward soil around piles. The horizontal bearing capacity of anchor piles was relatively accurate calculated by the S-shaped distribution hypothesis of soil resistance. Finally, an envelope model of rigid anchor piles was constructed considering the friction coefficients of pile-soil interfaces.
- rigid pile,
- oblique uplift,
- dense sand,
- bearing characteristic,
- calculation of the bearing capacity,
- numerical simulation

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References(24)

References

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