Axisymmetric finite element analysis of pile loading tests

Said, Imen Ben; Gennaro, Vincenzo De; Frank, Roger

doi:10.1016/j.compgeo.2008.02.011

Cited by 75 publications

(22 citation statements)

References 22 publications

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“…(2) The theoretical load-transfer curve method or the so-called t-z curve (Coyle and Reese [4]; Kraft et al [5]; Xiao et al [6]; Zhu and Chang [7]), which uses the load-transfer function to describe the relationship between the unit resistance transferred to the surrounding soil and the pile-soil deformation behavior in each soil layer. (3) The finite-element method (Sheng et al [8]; Comodromos et al [9]; Said et al [10]; Comodromos and Bareka [11]), which is considered as one of the most powerful approaches for the analysis of the behavior of single piles or pile groups. However, high computational requirements of the finite-element method are needed.…”

Section: Introductionmentioning

confidence: 99%

A simplified approach for settlement analysis of single pile and pile groups considering interaction between identical piles in multilayered soils

Zhang

2010

Computers and Geotechnics

119

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Section: Introductionmentioning

confidence: 99%

A simplified approach for settlement analysis of single pile and pile groups considering interaction between identical piles in multilayered soils

Zhang

2010

Computers and Geotechnics

119

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“…Another numerical study yielded that the radial stress increased near the pile end [19]. In theoretical view the increment of the radial stress increase the friction forces between soil stratum and pile surfaces, id est.…”

Section: Fig 2 Classification Of Deep Foundation According Distribumentioning

confidence: 98%

Experimental Investigation of Stress Distribution of Vertically Loaded Short Displacement Pile in Cohesion-less Soil

Martinkus¹,

Norkus²,

Amšiejus³

et al. 2013

Procedia Engineering

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One can find lot of the methods and theories to determine and interpret the nature of the bearing capacity of displacement piles in cohesion-less soil. The presence of many methods leads to the variety of results and yields that no general and relevant methods have been proposed yet. Many experimental investigations do not fit properly the results of known numerical simulations. These simulations yield that the shear stress near the end of the pile increases significantly, when compared with the rest of pile length. Current investigation presents the specific test results of the short displacement pile under vertical load in cohesion-less soil. The full scale test was performed and the vertical stresses beneath base and shear stresses along the pile have been measured, as a result the shear stress significant increase near the end of the pile was observed. The obtained results can be used for developing the shaft and tip bearing capacity evaluation method for the short displacement piles in cohesion-less soil.

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“…Numerical modelling often does not take into account the technolical process, and piles are often modelled as "wished-in-place". The modelling of a pile installation using existing empirical coefficients was analysed by Said et al (2009). Software is constantly being developed which allows for the use of more sophisticated constitutive material models, e.g., the Hardening Soil (HS) model, Hardening Small Strain (HSs) model or hypoplastic models, which better represent the actual behaviour of soils.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Numerical Analyses with a Static Load Test of a Continuous Flight Auger Pile

Holko

Stacho

2014

Slovak Journal of Civil Engineering

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The article deals with numerical analyses of a Continuous Flight Auger (CFA) pile. The analyses include a comparison of calculated and measured load-settlement curves as well as a comparison of the load distribution over a pile's length. The numerical analyses were executed using two types of software, i.e., Ansys and Plaxis, which are based on FEM calculations. Both types of software are different from each other in the way they create numerical models, model the interface between the pile and soil, and use constitutive material models. The analyses have been prepared in the form of a parametric study, where the method of modelling the interface and the material models of the soil are compared and analysed. Our analyses show that both types of software permit the modelling of pile foundations. The Plaxis software uses advanced material models as well as the modelling of the impact of groundwater or overconsolidation. The load-settlement curve calculated using Plaxis is equal to the results of a static load test with a more than 95 % degree of accuracy. In comparison, the load-settlement curve calculated using Ansys allows for the obtaining of only an approximate estimate, but the software allows for the common modelling of large structure systems together with a foundation system.

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Axisymmetric finite element analysis of pile loading tests

Cited by 75 publications

References 22 publications

A simplified approach for settlement analysis of single pile and pile groups considering interaction between identical piles in multilayered soils

A simplified approach for settlement analysis of single pile and pile groups considering interaction between identical piles in multilayered soils

Experimental Investigation of Stress Distribution of Vertically Loaded Short Displacement Pile in Cohesion-less Soil

Comparison of Numerical Analyses with a Static Load Test of a Continuous Flight Auger Pile

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