Pile response due to unsupported excavation-induced lateral soil movement

Poulos, H.G.; Chen, L.T.

doi:10.1139/cgj-33-4-670

Cited by 2 publications

(2 citation statements)

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“…The parametric study showed that the shielding effect was governed by the axial load applied on piles. Poulos et al [21] studied pile response due to excavationinduced lateral soil movements using the finite element method and the boundary element method. The authors found that the pile head condition had a major effect on the pile bending movement.…”

Section: Introductionmentioning

confidence: 99%

“…The authors found that the mobilization of shaft resistance along the pile depth highly depends on the relative pile toe position with respect to the excavation level. The above-mentioned studies provide additional insight into the interaction between the excavation and adjacent buildings [19][20][21][22][23][24][25][26][27]. However, the earth pressure acting on the retaining structure adjacent to the CFRLP was not considered in the authors' work.…”

Section: Introductionmentioning

confidence: 99%

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Study on the earth pressure of a foundation pit adjacent to a composite foundation with rigid-flexible and long-short piles

Guo

Jin

et al. 2021

PLoS ONE

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Model tests were performed to investigate the lateral earth pressure acting on the retaining structure adjacent to both natural ground (NG) and composite foundation (CFRLP), which were supported with rigid-flexible and long-short piles. Two testing procedures, namely, applying a load to the foundation and rotating the retaining structure along its toe, were considered. The results indicate that the additional lateral earth pressure acting on the retaining structure adjacent to the CFRLP is less than that of the NG in the depth of the reinforcement area strengthened by flexible piles. Compared with NG, the CFRLP yielded a smaller normalized height of application of the lateral earth pressure, suggesting that the CFRLP blocked the horizontal diffusion of the load and had a strong ability to transfer the surcharge load to the deep soil. When rotating the retaining structure, the lateral earth pressure acting on the upper part of the retaining structure experienced limited reduction once the displacement at the top of the retaining structure was greater than 8 mm, whereas the pressure acting on the lower part of the retaining structure continued to decrease with increasing displacement. In addition, a three-dimensional finite element model (FEM) was used to investigate the influence of the pile parameter and the wall-soil friction angle on the additional lateral earth pressure.

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Section: Introductionmentioning

confidence: 99%