Frictional Resistance of Closely Spaced Steel Reinforcement Strips Used in MSE Walls

Strahler, Andrew W.; Walters, Joseph; Stuedlein, Armin W.

doi:10.1061/(asce)gt.1943-5606.0001492

Cited by 12 publications

(2 citation statements)

References 22 publications

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“…Mechanically stabilized earth (MSE) walls utilize the tensile capabilities of inclusions to create reinforced soil masses, and their geomechanical performance is influenced by fill quality and reinforcement characteristics, with coarse-grained aggregates being preferred over fine-grained soils [1][2][3][4][5]. This has limited the use of some alternative fill materials in MSE walls, such as fine-grained tropical soils and industrial byproducts [6], which often do not achieve the conventional design criteria [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Construction and Demolition Waste and Other Alternative Fills for Strip-Reinforced Soil Walls

et al. 2023

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This article assesses the pullout performance of ribbed metallic strips embedded in fill soils that do not conform to conventional design criteria for mechanically stabilized earth (MSE) walls. These alternative fill soils include gravelly and sandy recycled aggregates from construction and demolition waste, artificial and natural sands, and fine-grained lateritic soil. The research included soil characterization tests and large-scale pullout tests, conducted as part of this study. The results showed that the reinforcement pullout behavior was similar for recycled, artificial, and natural sands, indicating that soil particle size played a crucial role in mobilizing the interface pullout resistance. However, in the case of recycled sand, stress concentration at the reinforcement level led to particle crushing during pullout conditions, causing this material to exhibit less efficient performance compared to other sands. The fine-grained lateritic soil demonstrated inferior behavior compared to sandy soils, despite the interparticle bonding provided by the sesquioxide coating characteristic of intensely weathered tropical soils. Finally, an analytical prediction tool based on experimental results was developed, providing an alternative method to make conjectures about the performance of different soils during the pre-design stages, particularly based on particle size attributes.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Construction and Demolition Waste and Other Alternative Fills for Strip-Reinforced Soil Walls

et al. 2023

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“…However, the design theories and construction methods of horizontal-planar reinforcement occupy a dominant position. In recent years, research on new reinforcement types has been performed (Lajevardi et al, 2013;Li and Tang, 2014;Mao and Zhang, 2014;Sayeed and Janaki, 2014;Zhu et al, 2014;Zhang and Xian, 2015;Andrew et al, 2016). In particular, since the spatial reinforcement forms provide additional conflnement along with the advantages of conventional forms, some steric reinforcing materials were developed to enhance the strengthening effect.…”

Section: Introductionmentioning

confidence: 99%

The Resistance of Denti-Geogrid Reinforcement in a Sand Model Based on the Pullout Test

Fang

Jing-sheng

Shi³

et al. 2021

Front. Mater.

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In order to investigate the pullout resistance of the Horizontal-Vertical reinforcement, a “denti-geogrid” was assembled by bonding a “denti-strip” with the geogrid and the pullout tests were carried out. Subsequently, the analytical approaches were investigated to calculate the pullout resistance on the basis of the surface sliding model, Perterson and Anderson’s model, Jewell’s model, Chai’s model, and the proposed stress summation model. Moreover, a new index named “scale factor” was suggested to reflect the proportion of bearing resistance provided by transversal members. The research showed that: 1) under the same test conditions, the pullout resistance of denti-geogrid was much higher than that of a common geogrid. All common geogrids showed linear strain softening in the later stage of pullout tests. Given the same normal stresses, due to the expansion of effective areas suffering lateral earth pressure, more denti-strips meant more significant resistance; 2) Among five theoretical approaches, the solutions of the proposed stress summation model made the best agreement with lab test results, with an average relative error of 2.82%. On the other hand, the stress summation model also showed a simplicity in calculation; and 3) Due to higher gradient of the fitting curve of scale factors under lower load, the bearing resistance would be more and more dominant, which means that the lateral resistance of denti-strips could play a decisive role in cases of low stress level.

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Mechanical behaviors of interaction between coral sand and structure surface

Feng

Meng

2020

J. Cent. South Univ.

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Frictional Resistance of Closely Spaced Steel Reinforcement Strips Used in MSE Walls

Cited by 12 publications

References 22 publications

Evaluation of Construction and Demolition Waste and Other Alternative Fills for Strip-Reinforced Soil Walls

Evaluation of Construction and Demolition Waste and Other Alternative Fills for Strip-Reinforced Soil Walls

The Resistance of Denti-Geogrid Reinforcement in a Sand Model Based on the Pullout Test

Mechanical behaviors of interaction between coral sand and structure surface

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