Vertical vibration of an end bearing pile interacting with the radially inhomogeneous saturated soil

Li, Zhen‐Ya; Gao, Yufeng; Wang, Kuihua

doi:10.1016/j.oceaneng.2020.108009

Cited by 31 publications

(10 citation statements)

References 48 publications

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“…Nevertheless, steel and prestressed concrete pipe piles are also widely used in engineering practice. [46][47][48][49][50][51] Recently, the authors 52 proposed a rigorous continuum analytical model to describe the kinematic response of pipe piles subjected to seismic P-wave propagation. In this paper we present the extension of that model to account for shear S-waves, that arguably dominate the seismic response of piled foundations.…”

Section: Introductionmentioning

confidence: 99%

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Transverse seismic response of end‐bearing pipe piles to S‐waves

Zheng

Luo

Kouretzis

et al. 2022

Num Anal Meth Geomechanics

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This paper presents a method for the seismic analysis of open-ended pipe piles subjected to vertically propagating S-waves, that considers kinematic interaction between the pipe pile and its external and internal soil. Following the presentation of the elastodynamic continuum model, which is based on the assumptions of linear elastic soil response and uniform soil conditions, we employ the derived solution to investigate the sensitivity of the seismic response of pipe piles to certain key problem parameters, such as pile slenderness or the relative stiffness of the pipe pile compared to its surrounding soil. We demonstrate that the bending stiffness of pipe piles is governing their seismic response, and that thin-walled pipe piles offer the best material usage versus seismic performance ratio. The presented solution offers a low-cost alternative to complex numerical simulations for preliminary seismic design purposes, such as the selection of optimal pipe pile section geometry.

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Section: Introductionmentioning

confidence: 99%

“…The abovementioned studies concern solid piles. Nevertheless, steel and prestressed concrete pipe piles are also widely used in engineering practice 46–51 . Recently, the authors 52 proposed a rigorous continuum analytical model to describe the kinematic response of pipe piles subjected to seismic P‐wave propagation.…”

Section: Introductionmentioning

confidence: 99%

Transverse seismic response of end‐bearing pipe piles to S‐waves

Zheng

Luo

Kouretzis

et al. 2022

Num Anal Meth Geomechanics

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show abstract

“…Owing to its rigor, Tajimi's approach has been widely used to formulate mathematical models to study inertial pile-soil interaction problems. [23][24][25][26][27][28][29][30] and kinematic pile-soil interaction problems. [31][32][33] Most of the mentioned studies are applicable to end-bearing piles only, which tip is fixed on the rigid bedrock.…”

Section: Introductionmentioning

confidence: 99%

Closed‐form formulation of vertical dynamic response of single floating piles in homogeneous viscoelastic soil

Zheng

Kouretzis

Ding

et al. 2022

Num Anal Meth Geomechanics

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This paper presents a mathematical model for the elastic analysis of single floating piles subjected to axial dynamic loads, that is based on treating the soil surrounding the pile as a Tajimi‐type viscoelastic continuum. The pile and the soil column underlying the pile tip are modelled using one‐dimensional rod theory, and this allows obtaining an elegant solution that requires solving a system of linear equations, instead of complicated integral equations. Closed‐form expressions are derived for the dynamic stiffness at the pile head, and the frictional resistance along the pile shaft. The presentation concludes with a discussion on the main mechanisms that govern the inertial response of floating piles, and an investigation on the sensitivity of the dynamic stiffness and of the frictional resistance to the main geometrical and material problem parameters.

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“…In light of this, the layered properties of both the outer and inner soils should be considered simultaneously when establishing the corresponding solutions. On the other hand, the soil would be disturbed during pile installation, making it inhomogeneous in the radial direction [5,15,18,19,24,28,52,53]. Previous studies have shown that this ubiquitous phenomenon, commonly known as construction disturbance, displays a noteworthy influence on the vibration of solid piles [9,22,49,58].…”

Section: Introductionmentioning

confidence: 99%

Influence of the inner soil on the torsional vibration of a pipe pile considering the construction disturbance

Gao

2021

Acta Geotech.

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This paper is concentrated on the influence of the inner soil on the torsional vibration of a pipe pile embedded in inhomogeneous soil. First, the soil-pile system is divided into several segments in the vertical direction in accordance with the layered properties of the soil and the inner soil-filled height. Then, the outer (inner) soil is further subdivided into finite vertical ring-shaped zones in the radial direction to simulate its radial inhomogeneity due to the construction disturbance. The dynamic equilibrium equation for each outer (inner) soil zone is solved, and the outer (inner) soil-pipe pile dynamic interaction is obtained. On this basis, the dynamic equilibrium equation for the pipe pile is solved by the Laplace transform and the recursive method is employed to derive the analytical solutions for the complex impedance and amplitudefrequency response of the twist angle at the pile head. The reliability of the proposed solutions is verified by comparisons with other solutions. Finally, a sensitivity analysis is performed to portray the influence of the inner soil on the torsional vibration of the pipe pile.

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Vertical vibration of an end bearing pile interacting with the radially inhomogeneous saturated soil

Cited by 31 publications

References 48 publications

Transverse seismic response of end‐bearing pipe piles to S‐waves

Transverse seismic response of end‐bearing pipe piles to S‐waves

Closed‐form formulation of vertical dynamic response of single floating piles in homogeneous viscoelastic soil

Influence of the inner soil on the torsional vibration of a pipe pile considering the construction disturbance

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