An analytical solution for integrity detection of a floating pile embedded in saturated viscoelastic half-space

Cui, Chunyi; Zhang, Shiping; Meng, Kun; Xu, Chengshun; Yang, Gang

doi:10.1177/1550147718803315

Cited by 4 publications

(2 citation statements)

References 28 publications

(38 reference statements)

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“…This is significantly inconsistent with the reality of the soil being a multi-phase medium. Therefore, to describe the influence of soils on the dynamic response of pipe piles in a more refined manner, many researchers including Zhang et al, 16,17 Cui et al, 18,19 Zheng et al, [20][21][22] Xiao et al, 23 and Ai et al 24,25 employed fluid-saturated porous media to simulate the physical and mechanical properties of the soil and further investigate the pile-soil interaction from different perspectives. However, it is generally accepted that the unsaturated soil exists in a large number of engineering constructions, in which the soil skeleton is filled with two kinds of fluids, generally water and air.…”

Section: Introductionmentioning

confidence: 99%

Vertical dynamic response of pipe pile embedded in unsaturated soil based on fractional‐order standard linear solid model and Rayleigh‐Love rod model

Liu

Dai

Zhou

et al. 2022

Num Anal Meth Geomechanics

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Considering the flow‐independent viscosity of soil skeleton and the lateral inertia effect of pipe pile, the vertical dynamic behavior of a pipe pile embedded in unsaturated soil is investigated in this work when the pipe pile is subjected to the vertical dynamic loading. In order to model this problem, the fractional‐order standard linear solid (FSLS) model is introduced to characterize the flow‐independent viscosity of the soil skeleton, the Rayleigh‐Love rod model is employed to specify the lateral inertia effect of pipe pile, while both vertical and radial soil displacement are entirely considered. The analytical solution of the pipe pile complex impedance is obtained through the rigorous theoretical derivation. Numerical results with known analytical solution are finally presented to discuss the influence of the model parameters for the FSLS model, lateral inertia effect and geometrical characteristic for the pipe pile, and saturation degree and intrinsic permeability for the unsaturated soil on the vertical complex impedance of the pipe pile. The main results indicate that enlarging the fractional‐order index, raising the strain relaxation time, or shortening the stress relaxation time will reduce the oscillation amplitude and natural frequency for the dynamic stiffness and damping of the pipe pile but will improve their mean value. The lateral inertia effect of pipe pile has effect on its complex impedance only in the high‐frequency region. The outer and inner radii of pipe pile, pile length, soil saturation degree, and soil intrinsic permeability are highly correlated with the pipe pile complex impedance.

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Section: Introductionmentioning

confidence: 99%

Vertical dynamic response of pipe pile embedded in unsaturated soil based on fractional‐order standard linear solid model and Rayleigh‐Love rod model

Liu

Dai

Zhou

et al. 2022

Num Anal Meth Geomechanics

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“…Subsequently, various simplified models for pile vibration were proposed to consider the effect of 3D wave propagation within surrounding soil [15,16]. Furthermore, Zheng et al [17], Cai et al [18], Yang et al [19], and Cui et al [20,21] examined the dynamic behavior of foundations (e.g., piles and plates) in a saturated mediu under longitudinal excitation by regarding the soil layer as porous saturated media.…”

Section: Introductionmentioning

confidence: 99%

New Analytical Solutions for Longitudinal Vibration of a Floating Pile in Layered Soils with Radial Heterogeneity

et al. 2020

Self Cite

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Based on the theory of wave propagation in three-dimensional (3D) continuum, a new analytical approach for the longitudinal vibration characteristics of a floating pile in layered soils with radial heterogeneity is developed by employing a viscous-type damping model. Firstly, an analytical solution for the longitudinal complex impedance at the pile head is deduced by employing the Laplace transform and complex stiffness technique with the compatibility conditions of the pile and radially inhomogeneous surrounding soil. Secondly, a semi-analytical solution in the time domain is further acquired by using the inverse Fourier transform method. Furthermore, the corresponding analytical solutions are validated through contrasts with previous solutions. Finally, parametric analyses are underway to investigate the effect of radial heterogeneity of surrounding soils on longitudinal vibration characteristics of floating piles. It is indicated that the proposed approach and corresponding solutions can provide a more wide-ranging application than the simple harmonic vibration for longitudinal vibration analysis of a floating pile in soils.

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Two-dimensional FM-IBEM solution to the broadband scattering of elastic waves in a fluid-saturated poroelastic half-space

Liu

Wang

et al. 2019

Engineering Analysis with Boundary Elements

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An analytical solution for integrity detection of a floating pile embedded in saturated viscoelastic half-space

Cited by 4 publications

References 28 publications

Vertical dynamic response of pipe pile embedded in unsaturated soil based on fractional‐order standard linear solid model and Rayleigh‐Love rod model

Vertical dynamic response of pipe pile embedded in unsaturated soil based on fractional‐order standard linear solid model and Rayleigh‐Love rod model

New Analytical Solutions for Longitudinal Vibration of a Floating Pile in Layered Soils with Radial Heterogeneity

Two-dimensional FM-IBEM solution to the broadband scattering of elastic waves in a fluid-saturated poroelastic half-space

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