Novel soil-pegged geogrid (PG) interactions in pull-out loading conditions

Abdi, Mahmood Reza; Mirzaeifar, H.; Asgardun, Y.

doi:10.1016/j.geotexmem.2022.04.001

Cited by 13 publications

(2 citation statements)

References 47 publications

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“…Abdi et al investigated the "Pegged Geogrid" (PG) system in large-scale pull-out tests, revealing improved soil passive resistance without bolting or welding. Evaluation of peg parameters in sandy and gravely soils highlighted the signi cant impact of peg inclusion on pull-out resistance and strain distribution along the geogrid [10]. Al-Haddad et al highlight the signi cance of protecting extensive buried pipelines due to the associated high costs and environmental concerns related to leaching.…”

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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Section: Introductionmentioning

confidence: 99%

Enhancing Trench Stability: A Geogrid Reinforcement Approach

Poursorkhabi,

Rostami,

Naseri

2024

Preprint

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“…10 Currently, the most common test method for the tensile properties of geogrids is the indoor tensile test. In terms of geogrid tensile tests, the existing literature mostly analyzes the effects of tensile medium, [11][12][13][14][15] tensile rate 16,17 and different ambient temperatures [18][19][20] on the tensile properties of geogrids. Balakrishnan and Viswanadham 21 found that the tensile load-strain behaviour of geogrids improved, and their tensile stiffness increased by a maximum of 2.42 times after tensile tests on geogrids inside the soil.…”

Section: Introductionmentioning

confidence: 99%

Analysis of tensile properties of geogrids for different morphology parameters

Gao

Zhu

2023

Journal of Thermoplastic Composite Materials

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Following the emergence of new morphology geogrids, tensile tests on some of the new morphology geogrids were conducted in this paper for practical engineering options. The study focuses on the tensile testing of 3D printed geogrids to analyze the effects of morphology differences (material, planar structure, filling rate, rib width and rib height) on the tensile properties of geogrids. The test results show that the tensile properties of high density polyethylene geogrids are stronger than those of polylactic acid geogrids. Increasing the filling rate of geogrid can increase the tensile performance while decreasing the rate of tensile performance improvement. In contrast to the elongation at the break of the geogrid, the maximum tensile strength and the maximum tensile modulus increase in the order of bidirectional, triaxial and quadaxial geogrids. When the rib width and the rib height increase by the same amount, the rib height increases the maximum tensile strength of the geogrid more than that of the rib width.

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