Full-Scale Experimental Testing and Finite Element Analysis of a Totally Prefabricated Counterfort Retaining Wall System

Farhat, Maen; Issa, Mohsen A.; Ibrahim, Mustapha; Rahman, Mahmudur

doi:10.15554/pcij62.3-03

Cited by 3 publications

(2 citation statements)

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“…The commonly used RWs include the gravity RWs [1,2], which rely on the balance between the self-weight of the RW and the earth pressure to maintain the stability of the wall and have disadvantages including long construction periods and poor greening function; gabion RWs [3,4], which are flexible gravity retaining structures formed by stacking gabion cages containing various grades of stone in an orderly manner; reinforced earth RWs [5,6], which are formed by adding steel bars in the soil to stabilize the soil by the friction between the steel bars and the soil, but their construction quality is greatly affected by the construction site factors and slope surfaces are required to be gentle; cantilever/counterfort RWs [7,8], which maintain stability by the weight of the fill on the bottom plate but have the disadvantages of complex construction technology, long construction periods, and excessive corrosion of drain pipes; and sheet pile walls [9][10][11], which uses baffles to block the soil between the deeply buried piles and they have similar disadvantages to those of the cantilever/counterfort RWs.…”

Section: Introductionmentioning

confidence: 99%

Full-Scale Experimental Study on Prefabricated Greening Ecological Retaining Walls

Wang

Zhu³

et al. 2022

Sustainability

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Prefabricated walls are frequently utilized as retaining structures in different applications. A new type of prefabricated greening ecological retaining wall (PGERW) is proposed in this research. Full-scale tests and numerical simulations were conducted to investigate the stress characteristics of the PGERW. To this end, the load–stress relationship, load–displacement relationship, and crack development of the retaining wall columns were carefully evaluated. It was found that when the load acting on the 3 m high column reached the ultimate load-bearing capacity (about 150 kN), an “arc + 7”-shaped crack pattern emerged. A V-shaped crack composed of bolt–chamfer cracks formed when the load applied to a 2.5 m high column reached the ultimate load-bearing capacity (about 335 kN). The design of hollow thin-walled columns can effectively reduce the amount of concrete used and, as a consequence, reduce its carbon emissions, while meeting the design strength requirements of the retaining wall. The PGERW addresses the challenges of improving the extent of greening and drainage performance of traditional prefabricated retaining walls. It has excellent applicability to highway slope construction and therefore can be applied in several contexts.

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Section: Introductionmentioning

confidence: 99%

Full-Scale Experimental Study on Prefabricated Greening Ecological Retaining Walls

Wang

Zhu³

et al. 2022

Sustainability

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“…With regard to the related research on filling sections, Day et al [10] simplified the numerical model of the pile-slab retaining wall, and obtained the distribution of pile, slab, and soil stresses. Farhat et al [11] utilized beam theory and finite element analysis to optimize a fully prefabricated buttress retaining wall. Based on full-scale tests and finite element analysis, the bearing capacity characteristics of each structure of the system were obtained.…”

Section: Introductionmentioning

confidence: 99%

Structural Behavior of Prefabricated Ecological Grid Retaining Walls and Application in a Highway in China

et al. 2021

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The retaining wall is a common slope protection structure. To tackle the current lack of sustainable and highly prefabricated retaining walls, an environmentally friendly prefabricated ecological grid retaining wall with high construction efficiency has been developed. Due to the asymmetrical condition of the project considered in this paper, the designed prefabricated ecological grid retaining wall was divided into the excavation section and the filling section. By utilizing the ABAQUS finite element software, the stress and deformation characteristics of the retaining wall columns, soil, anchor rods, and inclined shelves in an excavation section, and the force and deformation relationships of the columns, rivets, and inclined shelves in three working conditions in a filling section were studied. The study results imply that the anchor rods may affect the columns in the excavation section and the stress at the column back changes in an M-shape with height. Moreover, the peak appears at the contact point between the column and the anchor rod. The displacement of the column increases slowly along with the height, and the column rotates at its bottom. In the excavation section, the stress of the anchor rod undergoes a change at the junction of the structure. The inclined shelf is an open structure and is very different from the retaining plate structure of traditional pile-slab retaining walls. Its stress distribution follows a repeated U-shaped curve, which is inconsistent with the trend of the traditional soil arching effect between piles, which increases first and then decreases. For the retaining wall structure in the filling section, the numerical simulated vehicle load gives essentially consistent results with the effects of the equivalent filling on the concrete column.

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Full-scale testing and nonlinear finite element analysis of a pioneering fully prefabricated noise barrier wall system

Elrefae

Issa

2023

Engineering Structures

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Full-Scale Experimental Testing and Finite Element Analysis of a Totally Prefabricated Counterfort Retaining Wall System

Cited by 3 publications

References 0 publications

Full-Scale Experimental Study on Prefabricated Greening Ecological Retaining Walls

Full-Scale Experimental Study on Prefabricated Greening Ecological Retaining Walls

Structural Behavior of Prefabricated Ecological Grid Retaining Walls and Application in a Highway in China

Full-scale testing and nonlinear finite element analysis of a pioneering fully prefabricated noise barrier wall system

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