A computational method for post-construction settlement of high-speed railway bridge pile foundation considering soil creep effect

Feng, Shaokong; Wei, Limin; He, Chong-yang; He, Qun

doi:10.1007/s11771-014-2258-z

Cited by 17 publications

(12 citation statements)

References 11 publications

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“…The bearing layer beneath the pile tip was soft silty clay. The soil parameters as reported by Feng et al are k 0 = 0.67, c = 39.9 kPa ,and ϕ = 15°. The post‐construction load acting on the pier is reported as 24 423 kN.…”

Section: Results and Parametric Studiesmentioning

confidence: 91%

“…Feng et al reported the post‐construction settlement of a railway pier (Pier number 667) constructed over a 3 × 3 pile group. The settlement was measured up to a time period of 400 days.…”

Section: Results and Parametric Studiesmentioning

confidence: 99%

“…Wu et al developed an approach for the analysis of long‐term settlement behavior for single piles in layered soils by using distributed Voigt model to consider viscoelasticity effects of the soil and application of virtual soil‐pile model to incorporate pile‐end effects. Feng et al developed a method to calculate the post‐construction settlement of a bridge pile foundation using Mesri creep model. Feng et al developed a nonlinear method based on modified Burger model for the prediction of creep settlement of pile groups in layered soil.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of creep settlement of pile groups in linear viscoelastic soil

Mishra

Patra

2019

Num Anal Meth Geomechanics

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Summary This paper presents the analysis of creep settlement of pile groups for line pile groups, square pile groups, and rectangular pile groups undergoing creep settlements over a period of time. The soil is treated as a viscoelastic material and is modeled using a three‐parameter viscoelastic model. The damping component (dashpot) takes care of the permanent time‐dependent deformations in three‐parameter viscoelastic model. An approach suggested by Mindlin has been employed to calculate the stress distribution along the pile length in a group. The viscoelastic problem is converted into an elastic problem by the application of Laplace transform. Results in the form of variation of interaction factors for parameters such as pile length to diameter ratio, pile spacing, Poisson's ratio, and modulus ratio have been presented. Comparison has been made between interaction factors for piles groups undergoing immediate settlements and creep settlements. Finally, a typical predictive example has been presented for a 3 × 3 pile group showing creep settlement. The load rearrangement due to creep settlements causes about 5% to 35% increase in base resistance over time. Interaction factors for pile groups (2 × 1, 3 × 1, 2 × 2, and 3 × 2) undergoing creep settlement is about 15% to 55% higher than the interaction factors considering only the immediate settlements for pile group spacing less than or equal to 5d.

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Section: Results and Parametric Studiesmentioning

confidence: 91%

Section: Results and Parametric Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of creep settlement of pile groups in linear viscoelastic soil

Mishra

Patra

2019

Num Anal Meth Geomechanics

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“…For such construction measures, the permeability is increased by more than 100%. When decision-making such as double-tracking a railway section, it is necessary to equip the entire section not only with a new railway track but also a new railway safety device, which has a positive effect on the permeability of the track section as well [14][15][16][17].…”

Section: Calculation Of the Košice -Prešov Track Section Permeabilitymentioning

confidence: 99%

Proposal for Streamlining the Railway Infrastructure Capacity on the Specific Track Section in the Context of Establishing an Integrated Transport System

Stopka¹,

Chovancová²,

Kampf³

2017

MATEC Web Conf.

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Abstract. This paper is processed based on assessing the current capacity condition of the specific railway track section which connects two cities. Particularly, it proposes a set of possible measures in order to increase the permeable railway tracks performance (permeability) for the purpose of establishing an integrated transport system. In detail, it examines the capacity solutions by the construction of a double-track liner for smooth crossing and a second track on a single-track railway section.

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“…On this basis, they found that the settlement of a single-driven pile could last for a very long time until it became stable. Feng et al (2014), Hao andDong (2014), andYang et al (2014) also investigated the time-effect settlement of bridge piles for the purpose of long-term settlement predictions of high-speed railway bridge pile foundations. All the above works indicate that the time effect of pile settlement is obvious.…”

Section: Introductionmentioning

confidence: 99%

A new approach for time effect analysis in the settlement of single pile in nonlinear viscoelastic soil deposits

Wang

et al. 2015

J. Zhejiang Univ. Sci. A

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Abstract:A new and simple approach is presented to analyze the time effect in the settlement of single pile and the distributions of pile shaft resistance and pile axial force. First, the viscosity of soil is considered by using a linear damper, and the nonlinear elasticity of pile lateral soil and pile end soil are simulated by using a hyperbola model and idealized elastoplastic model, respectively. Then, the settlement of the pile head, shaft resistance, and axial force along the pile are derived by virtue of a wave equation analysis program based on traveling wave decomposition. Based on the solutions, a parametric study has been undertaken to investigate the influences of the parameters of a pile-soil system on the settlement behavior of a single pile. Finally, the calculated results are compared with the measured results to demonstrate the effectiveness and accuracy of the proposed approach. Note that the presented solution allows for a good prediction of the settlement behavior of a single pile and can provide a reference for the preliminary design of a pile foundation.

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A computational method for post-construction settlement of high-speed railway bridge pile foundation considering soil creep effect

Cited by 17 publications

References 11 publications

Analysis of creep settlement of pile groups in linear viscoelastic soil

Analysis of creep settlement of pile groups in linear viscoelastic soil

Proposal for Streamlining the Railway Infrastructure Capacity on the Specific Track Section in the Context of Establishing an Integrated Transport System

A new approach for time effect analysis in the settlement of single pile in nonlinear viscoelastic soil deposits

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