Experimental and PIV evaluation of grain size and distribution on soil–geogrid interactions in pullout test

Abdi, Mahmood Reza; Mirzaeifar, H.

doi:10.1016/j.sandf.2017.08.030

Cited by 55 publications

(15 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, the friction characteristics [22,23] of the interface between soil and geogrid reinforcement are one of the important factors to be considered in the design and stability analysis of GRS structures. e pullout test [24][25][26] is an effective and also commonly used method to investigate the interaction of the interface between soil and reinforcement. In order to simulate the interaction process and further understand the mechanical behavior and deformation characteristics of geogrid reinforcement, many laboratory experiments have been performed by several authors [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Investigations on Pullout Behavior of HDPE Geogrid under Static and Dynamic Loading

Zuo

Yang

et al. 2020

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

This paper describes a series of laboratory pullout tests that were performed to investigate the pullout behavior of high-density polyethylene (HDPE) uniaxial geogrid subjected to static and dynamic loading. Pullout tests were conducted on HDPE geogrid reinforced coarse sand under normal static loading (60–300 kPa), dynamic loading with different amplitudes (20, 40, and 60 kPa), and different frequencies (2, 4, and 6 Hz) by using the newly developed pullout apparatus. The results indicated that the pullout resistance of geogrid presented different growth patterns with the increase of normal loads under static loading. The amplitude and frequency both had significant effects on the interaction between reinforcement and soil, and the increment of the pullout resistance was 0.6 kN and 0.3 kN, respectively. The effect of dynamic loading on the soil-geogrid interface can be gradually equivalent to that of static loading corresponding to the balance position of dynamic loading with the increase of frequency compared with the static loading. The results of this study are helpful for the selection of the strength of the reinforcement in different locations and to simplify the study on the stress of reinforcement in reinforced soil structures under traffic loads.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Abdi and Mirzaeifar [26] conducted pullout tests to investigate the effect of the particle size and distribution on the friction characteristics of the soil-geogrid interface. It was observed that the pullout resistance increased with the increase of the particle size and nonuniformity, and the particle size had a greater influence.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigations on Pullout Behavior of HDPE Geogrid under Static and Dynamic Loading

Zuo

Yang

et al. 2020

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…The reconstructive procedure of 3D displacement fields includes interpolation of 2D displacements at the profiles, reconstruction of 3D displacement vectors in the intersection points, and interpolation of 3D displacement in the unknown points. In PIV, the position of soil particles is captured continuously by high-definition camera at different time points (Abdi and Mirzaeifar, 2017). Then, combined with PIV analysis The advantages and disadvantages of materials are just compared with each other ("-": lack of knowledge).…”

Section: Application Of Transparent Soil In Modeling Of Soil-structurmentioning

confidence: 99%

Transparent Synthetic Soil and Its Application in Modeling of Soil-Structure Interaction Using Optical System

et al. 2019

View full text Add to dashboard Cite

This article introduces the uses of transparent synthetic soil for geotechnical problems using optical system, including transparent materials, sample preparation, geotechnical properties, experimental methods, and applications in physical modeling. Four typical kinds of transparent synthetic soil are shown and compared. For amorphous silica powder, normally the consolidated amorphous silica has a higher normalized strength but a lower modulus than the natural clays. For amorphous silica gels, the stressstrain behaviors are consistent with the typical stress-strain behaviors of sand for both dense and loose conditions. For fused silica, it has a higher shearing strength and higher modulus than the natural sand does; the deviatoric stress increases with the confining pressure, but the stress-strain curves of fused silica and the natural sand are particularly similar. For glass sand, with increasing of the relative density, the strainstress relationship varies from strain hardening to stress softening, while its failure form is essentially the same as that of standard sand. According to the geotechnical properties of four typical materials of transparent synthetic soil grain, they are used to simulate different conditions and analyze practical engineering problems in different physical model tests. The process included the generation of a speckle pattern created by the interaction of laser light with transparent particles. Using digital image processing technology, speckle patterns can be obtained and used to calculate the displacement field. By utilizing this optical system, transparent synthetic soil can be used to nonintrusively investigate internal soil deformation, flow problems, and ground movement in physical model tests. Finally, both the advantages and disadvantages of the transparent soil experimental technique are analyzed.

show abstract

“…The interfacial characteristics between geosynthetics and the filling directly determine the internal stability of reinforcement. Accordingly, it is necessary to provide design parameters of reinforced soil through interface friction tests in the stability or deformation analysis-usually by means of a pullout test (Abdi and Mirzaeifar, 2017;Hussein and Meguid, 2020;Kumar et al, 2020). Geotechnical reinforcement develops rapidly and its application scope has been broadened extensively in past decades.…”

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.

View full text Add to dashboard Cite

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.

show abstract

Experimental and PIV evaluation of grain size and distribution on soil–geogrid interactions in pullout test

Cited by 55 publications

References 27 publications

Experimental Investigations on Pullout Behavior of HDPE Geogrid under Static and Dynamic Loading

Experimental Investigations on Pullout Behavior of HDPE Geogrid under Static and Dynamic Loading

Transparent Synthetic Soil and Its Application in Modeling of Soil-Structure Interaction Using Optical System

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

Contact Info

Product

Resources

About