Analysis of pile supported gravity lock

Desai, C. S.; Johnson, Lawrence D.; Hargett, Charles M.

doi:10.1016/0148-9062(74)92147-0

Cited by 5 publications

(6 citation statements)

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“…A number of methods have been developed in the past to analyze axially loaded piles, including simplified analytical methods [1,2], load-transfer methods [3][4][5], boundary element methods [6,7], finite element methods [8][9][10][11][12][13], infinite layer methods [14,15], finite layer methods [16][17][18], and ''hybrid" type methods [19][20][21]. Among them, the boundary element method is one of the commonly used methods to analyze a single pile and pile groups.…”

Section: Introductionmentioning

confidence: 99%

Boundary element analysis of axially loaded piles embedded in a multi-layered soil

Han

2009

Computers and Geotechnics

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Section: Introductionmentioning

confidence: 99%

Boundary element analysis of axially loaded piles embedded in a multi-layered soil

Han

2009

Computers and Geotechnics

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“…The behavior of vertically loaded pile foundations is mainly controlled by their axial stiffness, as suggested by Desai et al [1974]. Thus, the Young's modulus assigned to each pile element is calculated by the following expression:…”

Section: Analysis Of Axially Loaded Pilesmentioning

confidence: 99%

An Efficient Pseudo Three-Dimensional Finite Element Model: Presentation and Analysis of Two Soil/Foundation Interaction Problems

Bouzid

Vermeer

Tiliouine

et al. 2005

Int. J. Comput. Methods

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A pseudo-three-dimensional numerical model has been developed for the analysis of full 3D soil problems under combined loading. The procedure called Vertical Slices Model takes advantage of finite element (FE) 2D numerical solutions in plane stress for building approximate 3D solutions by replacing the inter-slice interactions by fictitious body forces. Continuum slices are successively analyzed by the combination of the explicit 2D finite element (FE) method and finite difference (FD) method in iterative process. The three-dimensional aspect of the considered problem is preserved by satisfying the continuity of shear stresses developed at the inter-slices. The theory of the vertical slices model is developed first, and then encoded in a Fortran computer program. Next, the prediction capabilities of this program are illustrated with two classical geotechnical applications, namely; the laterally and the axially loaded single piles embedded in homogeneous and non-homogeneous elastic soils. Although approximate, the model proved its ability to capture the behavior of the two boundary value problems. Then, in terms of stiffness factors the approach is used to predict the behavior of an embedded rigid square footing and a pile under combined loading in a half-space where the stiffness shows a power law variation with depth. Keywords: Finite element analysis; finite difference method; vertical slices; iterative process. 231 Int. J. Comput. Methods 2005.02:231-253. Downloaded from www.worldscientific.com by NANYANG TECHNOLOGICAL UNIVERSITY on 08/24/15. For personal use only. 232 D. A. Bouzid et al.

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“…That is, the solid continuous 'pile' in an axisymmetric or two-dimensional analysis is given a lower modulus to make it compress the same amount as the actual individual piles. Analyses of this sort include those of Desai et al [50] and Hooper [51]. Lin et al [52] have used a finite difference technique to compute the behaviour of the soil beneath a piled raft, and applied the theory of piled rafts in Bangkok clay, using a two-dimensional finite difference grid.…”

Section: Piled Raft Foundationsmentioning

confidence: 99%

Practical solutions to soil–structure interaction problems

Small

2001

Progress Structural Eng Maths

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Interaction of a structure and its foundation with the soil is discussed in this paper, and some of the numerical and analytical methods that have been developed for the analysis of raft and piled raft foundations are presented. It is shown that the use of simple spring models for the soil behaviour can lead to erroneous result and it is recommended that their use should be discontinued. Simple finite layer techniques are also examined, and results are compared with those of three-dimensional finite element techniques. It is shown that the finite layer techniques can yield good results for displacements in the raft and for moments induced into the piles. It is also shown that the use of thin plate theory for the raft can give good results for thick rafts and can be used for raft and piled raft analysis. The effect of including the stiffness of the superstructure in the analysis of the foundation is examined, and it is shown that the type of structure and its stiffness can have an effect on the deformation of the foundation. Finally, an analysis of an instrumented structure is carried out, and it is shown that reasonably good predictions of the behaviour of the foundation can be made through the use of soil-structure interaction theory and finite layer techniques.

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Analysis of pile supported gravity lock

Cited by 5 publications

References 0 publications

Boundary element analysis of axially loaded piles embedded in a multi-layered soil

Boundary element analysis of axially loaded piles embedded in a multi-layered soil

An Efficient Pseudo Three-Dimensional Finite Element Model: Presentation and Analysis of Two Soil/Foundation Interaction Problems

Practical solutions to soil–structure interaction problems

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