Experimental study on uplift behavior of shallow anchor plates in geogrid-reinforced soil

Gao, Yu-Xin; Zhu, Hong‐Hu; Ni, Yufei; Wei, Chao; Shi, Bin

doi:10.1016/j.geotexmem.2022.06.006

Cited by 18 publications

(4 citation statements)

References 56 publications

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“…The difference between the H–V geogrid-reinforced foundation and the conventional one is probably due to several factors. In the case of a conventional geogrid-reinforced foundation, the frictional and interlock mechanism increases the soil’s shear strength, as investigated by many researchers [ 39 , 40 , 41 ]. However, as illustrated in Figure 15 , the H–V geogrid offers confinement in three different ways.…”

Section: Resultsmentioning

confidence: 99%

Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation

et al. 2023

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A series of model tests were conducted to investigate the bearing capacity and reinforced mechanism of a horizontal–vertical (H–V) geogrid-reinforced foundation. The bearing capacities of the unreinforced foundation, the conventional geogrid, and the H–V geogrid-reinforced foundation were compared. The parameters, including the length of the H–V geogrid, the vertical geogrid height, the depth of the top layer, and the number of H–V geogrid layers, are discussed. Through experiments, it was found that the optimal length of H–V geogrid is around 4B, the optimal vertical geogrid height is approximately 0.6B, and the optimal depth of the top H–V geogrid layer is between 0.33B and 1B. The optimal number of H–V geogrid layers is 2. The result also indicates that the bearing capacity of H–V geogrid is almost 1.7 times greater than that of conventional geogrid. Additionally, the maximum top subsidence of H–V geogrid-reinforced foundation decreased by 13.63% compared to that of conventional geogrid-reinforced foundation. Under the same settlement, the bearing capacity ratio of two H–V geogrid-reinforced foundation layers is 75.28% higher than that of one layer. The results also demonstrate that the vertical elements of H–V geogrid interlock the sand from being displaced under the applied load and redistribute the surcharge over a wider area, thereby increasing the shear strength and improving the bearing capacity of an H–V geogrid-reinforced foundation.

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Section: Resultsmentioning

confidence: 99%

Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation

et al. 2023

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“…The use of biodegrading agents and waterproo ng materials to increase ber aggregation promotes greater durability and deformation resistance of geotextiles. This improvement can be attributed to the increased amount of energy required to cause failure of the material and its aggregates, dressings, or protective treatments, thus contributing to its greater durability (Gao et al, 2022). Note: N.C = No continuity.…”

Section: Strain At Break (ε)mentioning

confidence: 99%

“…In this sense, the application of a layer of waterproo ng resin seems to act as an aggregator, improving the accommodation of the cellulosic group [71,72]. Therefore, applying an excess amount of resin appears to reduce the deformation capacity of natural bers, making the material more ductile.…”

Section: Strain At Break (ε)mentioning

confidence: 99%

Comparison of mechanical performance of different geotextiles manufactured from natural fibers subjected to environmental biodegradation

Holanda,

Santos,

De Melo

et al. 2023

Int J Adv Manuf Technol

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The objective of this study was to evaluate the mechanical performance of geotextiles made from natural bers of Syagrus coronata (Mart.) Becc., Thypha domingensis, and Juncus sp. The geotextiles were treated with waterproo ng resin and exposed to biodegradation for 120 days to understand their stress and strain behavior. The geotextiles was treated with colorless wood waterproo ng resin by Hydronorth® to make it less permeable, delay the degradation process, and consequently increase the material's resistance to climatic variables. Subsequently, the geotextiles was subjected to natural degradation on slopes covering an area of 10m². Samples of the exposed material to the degradation processes were collected every 30 days. The ndings reveal that the examined bers, following treatment with waterproo ng resin, exhibit the capability for extended utilization in the eld, with Thypha ber outperforming the other tested bers. These results hold signi cant potential for the incorporation of natural bers in endeavours related to environmental conservation.

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“…The failure of the reinforced soil is similar to the soil without reinforcement case (see Fig 1 (b)). In the failure mechanism of the reinforced soil, a soil wedge (trapezoidal+triangular) occurs under the footing, moves downwards with the footing, and pushes adjacent soil towards the sides (Takemura et al, 1992;Michalowski and Shi, 2003;Şadoğlu and Uzuner, 2010;Xu et al, 2019;Venkateswarlu et al, 2020;Gao et al, 2022). Heaves occur at the sides of the footing in dense soil.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Bearing Capacity Increase for Woven Geotextile Reinforced Soils in Terms of Width of Footing

Ateş,

Şadoğlu

2024

Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi

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If it is understood that a soil medium cannot safely support the planned structure from the point of bearing capacity and settlement, various options can be applied in geotechnical engineering. These are relocation of the structure, usage of deep foundation, stabilisation of the soil, substitution of weak soil with well-graded coarse-grained soil by compaction, usage of geosynthetics, etc. These alternatives are evaluated according to the cost and availability of necessary materials and equipment. Geotextiles, one of the geosynthetic products, have been widely used for soil reinforcement recently. Therefore, the study intends to specify the soil's bearing capacity increase with geotextile and its dependence on footing width. For this aim, a testing apparatus has been produced, and the experiments have been conducted with a strip footing model on soil with various relative densities. Besides, this test setup was simulated with PLAXIS 2D software depending on the finite element method (FEM), and numerical analyses were performed. The numerical results were compared with the laboratory tests to verify parameters of M-C material model. Consequently, the study stated that the relative density of the sand, footing width, and reinforcement layer are significant factors for the bearing capacity increase of granular soils.

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Experimental study on uplift behavior of shallow anchor plates in geogrid-reinforced soil

Cited by 18 publications

References 56 publications

Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation

Bearing Capacity and Mechanism of the H–V Geogrid-Reinforced Foundation

Comparison of mechanical performance of different geotextiles manufactured from natural fibers subjected to environmental biodegradation

Evaluation of Bearing Capacity Increase for Woven Geotextile Reinforced Soils in Terms of Width of Footing

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