A simplified method for investigating the bending behavior of piles supporting embankments on soft ground

Diao, Yu; Guo, Yuhao; Jia, Zhenyang; Zheng, Gang; Pan, Weiqiang; Shang, Dongfan; Zhang, Ying

doi:10.1007/s11709-023-0952-3

Cited by 2 publications

(1 citation statement)

References 28 publications

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“…Researchers proposed various methods for the design of walls under static and seismic conditions [11][12][13][14][15][16][17]. Singh and Chatterjee [13] focused on free embedded cantilever walls (FECWs) and incorporated parameters such as the internal friction angle, wall-soil interface friction angle, and surcharge load.…”

Section: Introductionmentioning

confidence: 99%

New Displacement Method for Free Embedded Cantilever Walls in Sand

Hamderi

2024

Applied Sciences

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In the current literature, there is no practical formula to calculate the horizontal displacement of cantilever walls. To fill this gap, in the present study, eight formulae for the estimation of wall displacement were developed based on 431 FE wall model configurations. Each formula considers factors such as the wall height, embedment depth, surcharge load, unit weight, internal friction angle, elastic modulus of the surrounding soil, and flexural rigidity of the wall. The FE model, which was used in the development of the formula, was also validated against a physical laboratory study. In addition, the outputs obtained from the formulae were compared with the results of two laboratory studies and a real site study. Finally, a parametric study was performed to estimate the influence of formula input parameters on wall displacement.

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Section: Introductionmentioning

confidence: 99%

New Displacement Method for Free Embedded Cantilever Walls in Sand

Hamderi

2024

Applied Sciences

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Exploring mechanical performance of non-foamed polyurethane-bonded gravel and its pile bearing characteristics under embankments: an experimental and numerical approach

Hu,

Li,

Tan

2024

Front. Phys.

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Pile supported geogrid-reinforced embankment are widely used to treat soft soil. This paper proposes a novel method for reinforcing foundations using non-foamed polyurethane-bonded gravel (NPBG) porous piles. Through triaxial compression tests, the mechanical properties and strength parameters, such as strength and stiffness, of the polyurethane-bonded gravel material are determined. Finite element numerical simulations are then employed to investigate the bearing characteristics of NPBG porous pile under embankment loads. The experimental results indicate that, under the same confining pressure, the strength and stiffness of the NPBG material are significantly higher than those of plain gravel material, while still retaining large pore characteristics. Increasing the polyurethane content enhances the strength and stiffness of the porous material, but the improvement diminishes as the confining pressure increases. A systematic comparative analysis was conducted on the bearing characteristics of NPBG porous pile versus concrete pile, cement-mixed pile, and gravel pile under embankment in terms of load sharing ratio and settlement deformation. The permeability coefficient and modulus of the pile significantly influence the dissipation rate of excess pore water pressure in the foundation soil. The NPBGP pile exhibited the fastest consolidation speed, effectively controlling total settlement and reducing the proportion of post-construction settlement of the embankment. Compared to concrete pile and cement-mixed pile, the NPBG porous pile has a lower uniform settlement surface height in embankment, making it suitable for low-height embankment accelerated construction projects.

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A simplified method for investigating the bending behavior of piles supporting embankments on soft ground

Cited by 2 publications

References 28 publications

New Displacement Method for Free Embedded Cantilever Walls in Sand

New Displacement Method for Free Embedded Cantilever Walls in Sand

Exploring mechanical performance of non-foamed polyurethane-bonded gravel and its pile bearing characteristics under embankments: an experimental and numerical approach

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