Recent advances and past discoveries on tapered pile foundations: a review

Shafaghat, Amin; Khabbaz, Hadi

doi:10.1080/17486025.2020.1794057

Cited by 9 publications

(1 citation statement)

References 69 publications

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“…Compared to cylindrical piles of the same volume, calculated by the theoretical or numerical method used in engineering practices [1,2], the load-carrying capacity is increased by 0.5~2.5 times [3][4][5][6]. Due to its advantages over traditional pile foundations mentioned above, it is also used in structural foundations, slope retaining, and railway or highway weak foundation treatment projects [7][8][9]. Many researchers have investigated the vertical and lateral bearing capacity of the tapered pile.…”

Section: Introductionmentioning

confidence: 99%

Time Domain Nonlinear Dynamic Analysis of Vertically Loaded Tapered Pile in Layered Soils

Shua,

Liu,

et al. 2024

Buildings

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A simplified model is proposed for predicting the nonlinear dynamic response of vertically loaded tapered piles in the time domain, in which the tapered pile is divided into several frustum segments and the four-spring is used for the simulation of the soil–pile interaction. The differential equations for the tapered pile are given and solved by the finite difference method. The vertical dynamic response of a typical tapered pile is investigated, and the consistency of the computational results compared with the finite element results convincingly verifies the reliability of the proposed simplified model. Then, recommended segment numbers, considering the computational efficiency and accuracy requirements for the dynamic analysis of tapered piles, are given. And parametric studies are also carried out to investigate the effect of soil and pile parameters on the nonlinear dynamic response of the tapered pile. The results show that soil nonlinearity significantly affects the vertical dynamic characteristics of the tapered pile. And the tapered pile shows better dynamic characteristics than the cylindrical pile with the same volume and pile length. In addition, the properties of the soil along the upper part of the tapered pile have a more considerable effect on the dynamic response of the tapered pile. These results help to further improve the theory of nonlinear dynamic response analysis of tapered piles and promote its widespread application in engineering practice.

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