Effect of geogrid reinforcement on soil - structure – pipe interaction in terms of bearing capacity, settlement and stress distribution

Bildik, Selçuk; Laman, Mustafa

doi:10.1016/j.geotexmem.2020.07.004

Cited by 20 publications

(9 citation statements)

References 31 publications

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“…It is possible to estimate the displacement (u pullout ) of the reinforcement strip using Equations ( 8), ( 10), (13), and (14).…”

Section: Verification Of the Accurate Prediction Of Experimental Resultsmentioning

confidence: 99%

“…The use of reinforced soil (RS) walls, treated as a new, more economical proposition compared to conventional retaining walls, has increased significantly across the world during the last few decades. In recent periods of time, a large number of such structures has been built because of their numerous advantages, including reliability, aesthetics, cost effectiveness, simplicity of construction, tolerance of differential settlements, and good seismic performance [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Laboratory Testing and Theoretical Modeling of Deformations of Reinforced Soil Wall

Kazimierowicz-Frankowska¹,

Kulczykowski²

2022

Applied Sciences

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This paper presents the results of an experimental investigation of a vertical reinforced soil (RS) wall. The structure was built on a laboratory scale. Horizontal displacements on the surface of the model wall were monitored at the end of construction and during surcharge application (as post-construction displacements). The experimental results were compared with their theoretical predictions. The accuracy of the selected analytical approach was examined to predict deformations of the RS structure under external loading. It was shown that the proposed original and relatively simple analytical method for estimating structural deformation can be successfully used in practice (the average difference between the recorded and calculated values of deformation did not exceed 25%). From a scientific point of view, an important element of this work was the analysis of the effect of friction between the backfill and the side walls of the test box on the measured displacements. For the investigated case, it was shown that the impact of this element caused a reduction in the value of external loading of more than 60%. The final results may be particularly useful in the design process of structures used in transportation engineering (bridge abutments), where deformation limit values cannot be exceeded.

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“…It is possible to estimate the displacement (u pullout ) of the reinforcement strip using Equations ( 8), ( 10), (13), and (14).…”

Section: Verification Of the Accurate Prediction Of Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Laboratory Testing and Theoretical Modeling of Deformations of Reinforced Soil Wall

Kazimierowicz-Frankowska¹,

Kulczykowski²

2022

Applied Sciences

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“…In the study of Bildik and Laman, laboratory experiments were conducted to assess the impact of single and multiple layers of geogrids on bearing capacity and stress behavior. The investigation considered parameters such as the depth of the rst geogrid, vertical spacing between layers, and the number of geogrid layers, revealing insights into soil-structure-pipe interaction and stress distribution on the geogrid and pipe [9]. Abdi et al investigated the "Pegged Geogrid" (PG) system in large-scale pull-out tests, revealing improved soil passive resistance without bolting or welding.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Trench Stability: A Geogrid Reinforcement Approach

Poursorkhabi,

Rostami,

Naseri

2024

Preprint

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This paper investigates trench stabilization using geogrid reinforcement, employing static analysis via the finite element numerical method through PLAXIS 2D. Focusing on the challenges associated with soil instability in construction projects, particularly earthen roofs and rocky formations, the study emphasizes the potential for structural compromise and fragmentation due to erosion and weathering. Geogrid polymer networks, strategically integrated with soil and stone, emerge as a preventive measure against such disasters. Notable advancements in geogrid-related research are surveyed, establishing the context for this study. The methodology encompasses a simulated trench environment, systematically reinforced with geogrid in 10 layers, within an 8×35-meter earthen area. The properties of soil materials and geogrid specifications are detailed, while standard boundary conditions emulate real-world scenarios. Fine meshing ensures result accuracy, and trench width reduction analysis reveals a crucial correlation between diminished dimensions, augmented displacement, and decreased safety factor. The results highlight a heightened instability within the trench as it undergoes dimensional changes. The decrease in trench length directly correlates with a reduction in safety factor, underscoring the risk of compromised structural integrity. Reducing the length of the trench from 15 meters to 14 meters is associated with an approximate 1% increase in displacement, concurrently accompanied by a 9% decrease in volume. This insight emphasizes the need for meticulous trench dimension considerations in construction practices. The findings contribute to the geotechnical engineering field, prompting a reevaluation of design methodologies and offering empirical evidence for the development of robust guidelines in trenching projects.

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“…Since then, many studies investigated the improvement of the loadbearing capacity of shallow foundations supported by sand and reinforced with different materials, such as metal strips and metal bars [3][4][5], rope fibers [6], geotextile [7], and geocells [8][9][10]. In addition, considerable studies were conducted to evaluate the bearing capacity of the reinforced soil by geogrid [11][12][13][14][15][16][17][18]. These studies confirmed the beneficial effect of reinforcement on improving the bearing capacity and reducing the settlement of footing.…”

Section: Introductionmentioning

confidence: 99%

Behavior of a Circular Footing resting on Sand Reinforced with Geogrid and Grid Anchors

Helis

Mansouri

Abbèche

2023

Eng. Technol. Appl. Sci. Res.

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This study used finite element analysis to investigate the influence of using two reinforcing systems, the geogrid and the grid anchor, on the bearing capacity of a circular footing resting on sand. The parameters studied were the effect of the number of reinforcement layers (N), the depth ratio of the topmost layer of reinforcement (u/d), the vertical spacing ratio between consecutive layers (h/d), and the effect of reinforcement length (L). The results showed that the reinforcement layout had a very significant effect on the behavior of the reinforced sand foundation. The maximum bearing capacity for single-layer inclusion was obtained when reinforcement was placed at a depth of u/d=0.42. Bearing capacity was also found to improve when increasing the number of reinforcement layers from 1 to 3. Additionally, the analysis showed that the sand reinforced by grid anchors performed better than that reinforced by geogrid. Finally, an improvement in load capacity was obtained by increasing the length of the inclusions, and the optimal length of the reinforcements was determined at 5d for both inclusions.

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Effect of geogrid reinforcement on soil - structure – pipe interaction in terms of bearing capacity, settlement and stress distribution

Cited by 20 publications

References 31 publications

Laboratory Testing and Theoretical Modeling of Deformations of Reinforced Soil Wall

Laboratory Testing and Theoretical Modeling of Deformations of Reinforced Soil Wall

Enhancing Trench Stability: A Geogrid Reinforcement Approach

Behavior of a Circular Footing resting on Sand Reinforced with Geogrid and Grid Anchors

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