Analysis of laterally loaded pile groups in multilayered elastic soil

Salgado, Rodrigo; Tehrani, Faraz S.; Prezzi, Mônica

doi:10.1016/j.compgeo.2014.07.005

Cited by 48 publications

(30 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…10 further shows the normalised torque distributions along the pile shaft for a flexible pile K r ¼ 10 as well as a stiff pile K r ¼ 100; 000, calculated from Eq. (11). Similar to the horizontal stress distributions, the torque decreases rapidly along the flexible pile, but slowly along the stiff pile.…”

Section: Solutions For Fixed-head Square Pile Groupsmentioning

confidence: 74%

“…This is partially attributed to the approximation nature of utilising Eq. (11) to compute the torque distribution, which, as mentioned earlier, has not taken into account the additional torque contribution due to the transferred lateral loads on neighbouring piles.…”

Section: Comparison Of Theoretical and Experimental Resultsmentioning

confidence: 99%

“…In contrast to the extensive research work on the analysis of piles under axial and lateral loads (see for instance [1][2][3][4][5][6][7][8][9][10][11]), the analysis of piles under torsional loading has received less attention in the past. O'Neill [12] established a closed-form elastic solution for the pile head torque-twist relationship of single piles and introduced a discrete element model using torsional springs.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of pile groups subjected to torsional loading

Chen

Kong

Zhang

2016

Computers and Geotechnics

View full text Add to dashboard Cite

Section: Solutions For Fixed-head Square Pile Groupsmentioning

confidence: 74%

Section: Comparison Of Theoretical and Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of pile groups subjected to torsional loading

Chen

Kong

Zhang

2016

Computers and Geotechnics

View full text Add to dashboard Cite

“…These methods provide the ability to model complex geometries and soil-structure interaction phenomena, such as pile-group effects. Moreover, these methods can model the three dimensionality of a problem and well-capture soil and pile nonlinearities [20][21][22][23].…”

Section: State Of the Artmentioning

confidence: 99%

Evaluation of the Lateral Forces Acting on Stabilizing Piles Considering the Resistance of the Lower Zone of A Landslide in the Three Gorges Reservoir, China

Yan¹,

Wang²,

Du³

et al. 2016

JESTR

View full text Add to dashboard Cite

Evaluation of lateral forces acting on the stabilizing pile above the slip mass can directly influence the accuracy of calculating the internal force of a pile，thus affecting the rationality of the design of stabilizing piles. A novel method to accurately evaluate these lateral forces on the basis of the limit equilibrium method of slices was proposed in this study. The method was used to estimate the lateral forces acting on the stabilizing piles above the slip surface of a landslide. A landslide was divided into upper and lower sections, and the distinct target safety factors of the two sections were used to determine the lateral forces. The maximum value of the lower lateral force was determined when a state of limit equilibrium was reached. A case study was conducted to compare the lateral forces obtained using the traditional and proposed methods. Results demonstrate that the lower lateral resistance forces account for 75.1%, 43.5%, and 19.6% of the upper lateral forces in the three selected cases. These findings indicate a massive resistance force in the lower part and the considerable effect of seepage of groundwater on the lateral forces. The proposed method provides a good prospect to optimize the design of stabilizing piles.

show abstract

“…By linking the soil displacement directly to the pile deflection and describing the soilpile system using energy principles, analytical or semi-analytical energy-based methods have been developed and improved through the years; the applicability of these methods has been progressively extended from piles in uniform soil ( [13,14]) to piles in layered soil profiles ( [15][16][17][18]) and from single piles ( [19]) to pile groups ( [20]). These analytical or semianalytical solutions have proven to be reliable and computationally efficient, but all treated the soil as an elastic material, making it difficult to use them in practice without considerable judgment.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear analyses of laterally loaded piles – A semi-analytical approach

Han

Salgado

Prezzi

2015

Computers and Geotechnics

View full text Add to dashboard Cite

This paper describes a semi-analytical, continuum mechanics-based method of calculating the nonlinear response of pile foundations subjected to lateral loads. The displacement field in the soil is obtained as the product of a pile deflection function and displacement decay functions. Based on the incremental form of the virtual work, a system of coupled differential equations for the pile deflection and decay functions is derived and then solved by using the finite difference method, producing pile deflections, shear forces and bending moments as well as displacements within the soil domain. The soil is modeled as an elasto-plastic material. The analysis is computationally efficient and produces results that are in good agreement with those from 3D finite element modeling with the same constitutive model for the soil. The method models laterally loaded pile response more realistically than the traditional p-y method at a comparable computational cost. The method is substantially more efficient than 3D finite element simulations. The proposed method offers a good alternative to the p-y method in contexts in which fast calculation of lateral pile response is required, such as in the design of piles for offshore wind farms.

show abstract

Analysis of laterally loaded pile groups in multilayered elastic soil

Cited by 48 publications

References 36 publications

Analysis of pile groups subjected to torsional loading

Analysis of pile groups subjected to torsional loading

Evaluation of the Lateral Forces Acting on Stabilizing Piles Considering the Resistance of the Lower Zone of A Landslide in the Three Gorges Reservoir, China

Nonlinear analyses of laterally loaded piles – A semi-analytical approach

Contact Info

Product

Resources

About