Experimental study on the behaviour of geogrid-reinforced slopes with respect to aggregate size

Mehrjardi, Gh. Tavakoli; Ghanbari, Ali; Mehdizadeh, H.

doi:10.1016/j.geotexmem.2016.06.006

Cited by 79 publications

(20 citation statements)

References 23 publications

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“…The aperture size of reinforcement has remarkable effect on the performance of reinforced foundations. The ratio of the apertures size to the medium soil grain size is an important factor in the interaction between soils and geogrid [55]. To achieve the best reinforcement effect, Tavakoli Mehrjardi and Khazaei [54] recommended the optimum aperture size of geogrids should be about 4 times of medium grain size of backfill materials.…”

Section: Reduced Model Testsmentioning

confidence: 99%

Planar geosynthetic-reinforced soil foundations: a review

2020

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Geosynthetics-reinforced soil (GRS) foundation can improve the bearing capacity of the foundation and reduce the settlement of the footing, which has been widely applied to the treatment and improvement of soft soil foundation. In recent years, scholars have carried out a large number of studies to reveal the influence of different factors on the load and settlement behaviors of GRS foundations. In this study, the reinforcing mechanisms of reinforced materials are first summarized, and then the literature review of planar geosynthetic-reinforced foundations from the aspects of experimental studies, numerical simulations and theoretical analyses are presented. Finally, the current research trend of reinforced foundation and the prospects in the future study are discussed. Although the researches on the performance of GRS foundations are conducted extensively, there is no unified understanding on the failure mode and reinforcing mechanism of reinforced foundation. It is necessary to propose the accurate and simple calculation method to evaluate the ultimate bearing capacity of reinforced foundations based on the reinforcing mechanism and failure mode. In addition, the dynamic response of GRS foundations under cyclic loading and earthquake needs to be studied intensively. The paper summarizes the past and present developments of the GRS foundations and provide the views for the further researches.

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Section: Reduced Model Testsmentioning

confidence: 99%

Planar geosynthetic-reinforced soil foundations: a review

2020

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“…Based on the length of the geogrids, edge distance and particle size the bearing capacity varies. The bearing capacity mainly depends on the length of the geogrid [40]. To achieve best performance the aperture size should be approximately equal to 0.2 times the width of the footing [41].…”

Section: Slope Stabilitymentioning

confidence: 99%

“…Geogrids in slopes may be uneconomical as lengthy geogrids increases the cost of construction [43]. However, it can be said that geogrids used in slopes as reinforcement increases the slopes' stability [40] - [44].…”

Section: Slope Stabilitymentioning

confidence: 99%

“…Geogrids, commonly known as geosynthetics and polymer grids, are commonly used for stabilization (pavements), protection (slope stability), drainage and strengthening [2]. For instance, geogrids are used for reinforcing retaining walls [3]- [9], pavements [10][11][12][13][14][15][16][17][18], foundations in soft soil [19]- [39], slope stability [40]- [44], embankments [45]- [47] and for structural components such as beams and columns [48]- [68]. The usage of geogrids may be considered as highly economical and safe towards the environment as it creates less environmental effects [69].…”

Section: Introductionmentioning

confidence: 99%

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Applications and Performance of Geogrids in Structures

Balaji*,

Vinodhkumar,

Ridhuvarsine

2019

IJRTE

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A type of geosynthetic material named geogrid plays a pivotal role in the behaviour of concrete by implementing them as an additional reinforcement. Geogrids have good tensile strength as they are formed by the reticulation of tensile elements with an opening of an ample size which allows interlock with the nearby fill materials. These grids are flexible mesh which is highly effective and enhances the life of the structure. The prime constituents of geogrid are polyester, high-density polyethylene, and polypropylene. More often, in the field of civil engineering,uni-axial, bi-axial and tri-axial geogrids are used. As the cost and duration of construction are nominal, geogrids can be optedfor cost-effective and resilient construction. They are frequently used as reinforcement and for stabilization in structures like retaining walls, pavements, foundations, slopes, and embankments. The geogrids are employed in various construction which results in sustainable development. Thus, this paper discusses diverse studies that have been carried out by using different types of geogrids for various purposes by different research scholars

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“…This can be expected to make the bed deflect more. Tavakoli Mehrjardi et al (2016) observed that the failure zones in a reinforced slope formed after a greater volume than in an unreinforced slope which might increase the likelihood that confinement be increased by the reinforcement.…”

Section: Model Verificationmentioning

confidence: 99%