A numerical study of anchored sheet piles subjected to different types of sandy soils backfill

Emarah, Dina A.; Seleem, Safwat A.

doi:10.1016/j.hbrcj.2018.03.001

Cited by 16 publications

(6 citation statements)

References 7 publications

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“…18 and 19 show the upper anchor's forces are always less than the lower one through all the construction stages. Similar results can be seen in [20]. The total anchor's reactions forces do not follow a predictable behavior during the construction steps.…”

Section: Resultssupporting

confidence: 81%

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Three-dimensional response of double anchored sheet pile walls subjected to excavation and construction sequence

Fall

Gao

Ndiaye

2019

Heliyon

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In this study, a three-dimensional (3D) response of anchored sheet pile walls was investigated on double-anchored sheet pile system during soils excavation and tunnel construction sequence. This construction procedure is executed in areas front and adjacent the sheet pile walls. This paper focused on both areas of construction effects on the sheet piles. This numerical study aimed at the evaluation of the variation of bottom wall bending moment, top wall lateral and vertical displacements and anchor reactions forces exerted in the sheet piles. This paper also described the variation of the total anchor's reactions forces from the upper and lower anchors rows. A parametric effect such as upper and lower anchors rows distance was also performed to evaluate the variation of the wall bending moment, displacement and anchors total forces. The analysis results indicated that the reactions forces developed in the lower anchor rods are always higher than those developed in the upper anchor rods. The higher the distance between the upper and the bottom anchors the lower the displacement of the top wall in any stage of the construction. The minimum bottom walls bending moment is developed in the case where the distance between the anchor's rows divided by the wall height is 0.51. Positioning the upper anchors at 0.15 and the lower at 0.39 the wall height from the top wall will induce minimum top wall vertical displacement during soil excavation. This paper presents the results and findings of the parametric study performed.

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Section: Resultssupporting

confidence: 81%

“…The two results were convergent. Seleem [20] performed a 2D numerical parametric study to evaluate the variation of maximum values of bending moments and anchor forces exerted in the sheet piles. The study results indicated that the forces developed in the lower anchor rods are always higher than those developed in the upper anchor rods.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional response of double anchored sheet pile walls subjected to excavation and construction sequence

Fall

Gao

Ndiaye

2019

Heliyon

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“…Figure (6) indicated that the maximum shear force decreases, as the anchor inclination increases, except when the angle of inclination is zero. The value of the maximum shear force when the angle of inclination equals to 10 degrees.…”

Section: Figure (5) the Relation Between The Maximum Bending Moment And The Anchor Inclinationmentioning

confidence: 95%

“…Design of anchored sheet pile wall depends on many factors like the height of excavation, surcharge loads, the kind of structure (temporary or permanent), and the level of groundwater table [3].The analysis and design of cantilever sheet pile walls and anchored sheet pile walls can be carried out utilizing a numerical model or traditional methods that depend on the limit equilibrium approach. Many researchers studied the safety conditions, soil deformation, lateral earth pressure distribution and stress-strain analysis for cantilever sheet pile walls and anchored sheet pile walls using the finite element method [4,5,6,7,8,9,10,11,12,13]. Tang et al [14] used a finite element model based on field data to investigate the lateral earth pressure distribution on sheet pile walls and provide the guidelines recommendations to design the sheet pile walls.…”

Section: Figure (1) Influence Of Ground Anchors On Wall Stability (After Sabatini Etal 1999)mentioning

confidence: 99%

Numerical Analysis of Anchored Sheet Pile Walls

Raouf

Moamen²

2020

Journal of Al-Azhar University Engineering Sector

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Anchored sheet pile walls are used to restrain excavation when the depth of the excavation exceeds about 6 m. In this paper, the influence of some parameters on anchored sheet pile walls was studied. The parameters are: anchor inclination with the horizontal ground, the number of anchors (one -row, or more), the cohesion of soil, and angle of internal friction of the backfill soil. The previous parameters affect soil behavior, wall bending moments, and wall displacement. Numerical analysis of the anchored sheet pile walls was implemented using a finite element program GEO5. The results of the analysis indicated that the optimum angle of anchor inclination is 25 degrees to reduce the horizontal displacement at the top of the wall and maximum bending moment. Variation of the angle of internal friction has a significant effect on the wall. As the friction angle increases, the maximum displacement and the internal forces decrease. As the cohesion of soil increases, the maximum bending moment, shear force, and wall displacement decreases. Increasing the number of anchors decreases the maximum bending moment, wall displacement, and increases the maximum shear force.

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“…A numerical parametric study using the finite element program of PLAXIS was performed on single and double anchored sheet piles systems for sandy [9]. This numerical study aimed at study the effect of varying of some parameters such as the embedded depth, and positions of anchor rods either the upper rod or the lower one.…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Laterally Anchored Retaining System in Loose Sand Soil

Elbahkery

Alsawwaf²,

Nazir³

et al. 2021

Journal of Engineering Research

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One of the earliest earth retention technologies used in civil engineering projects is sheet pile walls. Therefore, in this work, a numerical analysis using Plaxis 2D was performed to investigate the behaviour of laterally anchored retaining system in sandy soil, focusing on the anchor force, lateral displacement, and maximum bending moment. The effects of anchor location and number on wall and soil deformations were investigated for various wall heights. When anchored-sheet-piles were used instead of cantilever sheet piles, the results showed a significant reduction in both wall deformation and bending moment specially at high dredging levels. In addition, while having numerous anchor levels is the most approach to minimize wall and soil deformations. Also, the findings revealed that adopting the one-anchored sheet pile wall can greatly decrease the maximum wall displacement by about and 59.16%; which occurs at 0.4H; as well as reduce the maximum bending moment by about 85.63%; which occurs at 0.5H, comparing with the cantilever sheet pile wall at dredging depth (H) = 5m. At a deeper dredging depth (H=9m), the maximum lateral displacement and maximum of wall were reduced by 88 %, and 86 %, respectively. Also, at H= 9m, using the second level of anchors can also reduce the maximum bending moment on the wall by more than 83.55 %.

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A numerical study of anchored sheet piles subjected to different types of sandy soils backfill

Cited by 16 publications

References 7 publications

Three-dimensional response of double anchored sheet pile walls subjected to excavation and construction sequence

Three-dimensional response of double anchored sheet pile walls subjected to excavation and construction sequence

Numerical Analysis of Anchored Sheet Pile Walls

Behaviour of Laterally Anchored Retaining System in Loose Sand Soil

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