Pile-clayey soil interaction analysis by boundary element method

Fattah, Mohammed Y.; Shlash, Kais T.; Al-Soud, Madhat Shakir

doi:10.3724/sp.j.1235.2012.00028

Cited by 8 publications

(3 citation statements)

References 10 publications

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“…Te beam pier corresponding node uses the master-slave node for rigid connection. Te joints at the bottom of the pier are fxed boundary conditions with six degrees of freedom [11]. Te loads in the construction process include dead weight, construction load, hanging basket weight, which is 75 tons, and the second-phase dead load.…”

Section: Numerical Simulation Analysis Of the Continuous Rigid Frame ...mentioning

confidence: 99%

Closure Scheme Analysis of 3 × 70 m Bearingless Integral Rigid Frame Bridge of Fuzhou Xiamen High-Speed Railway

Weng

Li²

2023

Advances in Civil Engineering

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The hydrodynamic problems associated with the construction of the sea-crossing bridge were proposed. The deep-water approach bridge on both sides of the main bridge of Fuzhou Xiamen high-speed railway adopts the bearingless prestressed concrete integral rigid frame bridge for the first time in the domestic railway bridge design. The rigid frame bridge applies the hanging basket cantilever construction, and there are several options for closure. Because the bridge structure system changes before and after closure, which will cause the redistribution of bridge internal force, the results of internal force redistribution will be different with the sequence and position of closure, and sometimes, there will be great changes. In order to select the optimal closure scheme, this article establishes the finite element model of the whole bridge and analyzes the whole construction process according to the working conditions and the mechanical state of the bridge before closure is obtained. Based on this state, eight closure schemes are analyzed and studied, which provides a sufficient mechanical basis for the determination of the final closure construction scheme.

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Section: Numerical Simulation Analysis Of the Continuous Rigid Frame ...mentioning

confidence: 99%

Closure Scheme Analysis of 3 × 70 m Bearingless Integral Rigid Frame Bridge of Fuzhou Xiamen High-Speed Railway

Weng

Li²

2023

Advances in Civil Engineering

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“…Thus, one of the current problems of active underground space development is the prediction of driven pile behavior rested on the layered clay and claystone's bases. Numerical modeling by the methods of nonlinear analysis is widely used to describe the behavior of single pile and pile groups in layered clays [7][8][9][10]. The majority of numerical solutions are based on the field pile-load tests results.…”

Section: Introductionmentioning

confidence: 99%

Effect of clay compaction around driven pile and prediction of pile settlement

Ponomaryov

Sychkina

2022

E3S Web Conf.

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In the article the problem of geotechnical application of clay nd claystone as a base of driven pile foundations has been considered. When using these foundations, a compaction zone is formed in the clay space around the pile. The purpose of this research is to analyze the influence of compaction zones on the results of analytical and numerical calculations for predicting the settlement of a driven pile in layered clay soils. The following tasks were solved: 1) The existing investigations of pile settlement in layered clay soils were analyzed; 2) The characteristics of experimental sites and the parameters of numerical modeling were, methods for testing single field piles in layered clay soils were described; 3) Calculation of single pile settlement was performed carried out by numerical methods with the use of Plaxis 2D software package and by an analytical method; 4) The experimental data were compared with the results of calculations by analytical and numerical methods. The developed calculation scheme with two compaction zones around driven piles can provides reasonable estimates of vertical displacements of the clay base. Based on the results obtained, the authors recommend using the analytical method with due regard for compaction zones in clays and claystones around the driven pile.

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“…However, an enormous computational effort is required in finite element analysis to incorporate the non-linear stress-strain response of soil and progressive slippage at the interface. Moreover, the studies conducted by Poulos (1989), Basile (2010), and Fattah et al (2012) underlines several advantages of the use of boundary element method as an alternative of FEM to solve the pile-soil interaction problems.…”

Section: Introductionmentioning

confidence: 99%

Piles Subjected to Torsional Cyclic Load: Numerical Analysis

Nimbalkar

Punetha

Basack

2019

Front. Built Environ.

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Pile foundations supporting large structures (such as high-rise buildings, oil drilling platforms, bridges etc). are often subjected to eccentric lateral load (in addition to the vertical loads) due to the action of wind, waves, high speed traffic, and ship impacts etc. The eccentric lateral load, which is usually cyclic (repetitive) in nature, induces torsion in the pile foundation. This paper presents a numerical model based on boundary element approach to study the performance of a single pile subjected to the torsional cyclic load. The model is initially validated by comparing it with the experimental data available from the literature. Thereafter, the model has been utilized to conduct a parametric study to understand the influence of the torsional cyclic loading parameters on the axial pile capacity. The results indicated that the model is able to capture the degradation in the axial pile capacity due to the torsional cyclic loading with a reasonable accuracy. Moreover, the parametric study showed that the frequency, amplitude and number of cycles play a significant role in the torsional cyclic response of the pile. The present study is essential for the development of design guidelines for pile foundations subjected to torsional cyclic load.

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Pile-clayey soil interaction analysis by boundary element method

Cited by 8 publications

References 10 publications

Closure Scheme Analysis of 3 × 70 m Bearingless Integral Rigid Frame Bridge of Fuzhou Xiamen High-Speed Railway

Closure Scheme Analysis of 3 × 70 m Bearingless Integral Rigid Frame Bridge of Fuzhou Xiamen High-Speed Railway

Effect of clay compaction around driven pile and prediction of pile settlement

Piles Subjected to Torsional Cyclic Load: Numerical Analysis

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