Interaction between cohesive-frictional soil and various grid reinforcements

Bergado, Dennes T.; Chai, Jinchun; Abiera, Henry Orpeza; Alfaro, Marolo C.; Balasubramaniam, A. S.

doi:10.1016/0266-1144(93)90008-c

Cited by 96 publications

(28 citation statements)

References 3 publications

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“…41) is comparable with experimental results obtained by other researches [95][96][97][98], in which its value for granular material in contact with different geogrids changes from 0.90 to 1.12.…”

Section: Soil-geosynthetic Interaction In Direct Shear Tests: Experimsupporting

confidence: 82%

Soil Geosynthetic Interaction: Design Parameters from Experimental and Theoretical Analysis

Moraci

Cardile

Gioffrè

et al. 2014

Transp. Infrastruct. Geotech.

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The main objective of this paper is to discuss the experimental and theoretical approaches developed by different researchers in order to understand and to evaluate the soil geosynthetic interaction under different loading conditions. In the paper, the soil-geosynthetic interaction in pullout, direct shear, and inclined plane tests under both static and cyclic loading is analyzed based on the different theoretical and experimental results carried out by the authors and also available in literature. For each type of test, the factors affecting test results and soil-geosynthetic interface behavior, the theoretical model developed to predict the interface resistance and mobilized friction, and the relevance of the interface parameters obtained through the different tests in the design and performance of geosynthetic reinforced earth structures are discussed in detail.Keywords Geosynthetic . Interaction . Design . Laboratory tests . Modeling Transp. Infrastruct. Geotech. (2014) Grain size corresponding to 85 % in weight of passing soil (mm)Maximum grain size (mm) DrRelative density (%) f Cyclic tensile load frequency (Hz)Force required to hold back the upper box (kN)Lower support minimum length along the displacement direction (m) L R Reinforcement length in the anchorage zone (m) L U Upper box minimum length along the displacement direction (m) n t Number of geogrid bearing members n tbNumber of nodes in a transversal element P b1Maximum pullout bearing force of a single isolated transverse member (kN/m) P bn Maximum pullout bearing force (kN/m) P

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Section: Soil-geosynthetic Interaction In Direct Shear Tests: Experimsupporting

confidence: 82%

Soil Geosynthetic Interaction: Design Parameters from Experimental and Theoretical Analysis

Moraci

Cardile

Gioffrè

et al. 2014

Transp. Infrastruct. Geotech.

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“…Over recent decades, numerous experimental studies have been conducted to assess the shear strength parameters of soil-geosynthetic interfaces through direct shear tests (Bergado et al 1993(Bergado et al , 2006Bakeer et al 1998;O'Kelly and Naughton 2008;Liu et al 2009;Anubhav 2010;Ferreira et al 2012Ferreira et al , 2013Vieira et al 2013). However, few studies have compared the direct shear behaviour of different soil-geosynthetic interfaces for various conditions of soil moisture content and density.…”

Section: Introductionmentioning

confidence: 97%

Direct shear behaviour of residual soil–geosynthetic interfaces – influence of soil moisture content, soil density and geosynthetic type

Ferreira

Vieira

Lopes

2015

Geosynthetics International

127

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Soil-geosynthetic interface shear strength is an essential parameter for the design and stability analysis of geosynthetic-reinforced soil structures. Economic and environmental reasons have led to increasing use of locally available residual soils with a significant percentage of fines and lower draining capacity, when compared with the traditional good-quality backfill materials. This paper describes an extensive laboratory study carried out using a large-scale direct shear test device, in which the influence of soil moisture content, soil density and geosynthetic type on the direct shear behaviour of the soil-geosynthetic interface was evaluated. The study involved a locally available granite residual soil and four geosynthetics: two geogrids (one uniaxial and the other biaxial), one geocomposite reinforcement (high-strength geotextile) and one geotextile. Test results have revealed that the increase in soil moisture content can measurably reduce the soil-geosynthetic interface shear strength. Regardless of soil moisture content, soil density proved to have a remarkable influence on interface shear strength, particularly when geogrids were used. Among the different geosynthetics tested, the biaxial geogrid was found to be the most effective reinforcement for this particular type of soil, concerning the direct shear mechanism. For soil-geogrid interfaces, the coefficients of interaction ranged from 0.71 to 0.99. For soil-geotextile interfaces, the coefficients of interaction varied from 0.54 to 0.85.

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“…These parameters might be affected by several factors: for example, the physical and mechanical features of the soil, the geometry of the reinforcement, boundary conditions, the experiment equipment, and overburden pressure. Many researchers have studied the effects of various parameters on friction resistance between soil and reinforcement, through numerical and experimental approaches (Jewell et al, 1984;Milligan and Palmeira, 1987;Bergado et al, 1993;Alfaro et al, 1995;Perkins and Edens, 2003;Alfaro and Pathak, 2005;Sieira et al, 2009;Hsieh et al, 2011;Esfandiari and Selamat, 2012;Hussein and Meguid, 2013;Chen and McDowell, 2013;Shi and Wang, 2013;Balunaini et al, 2014;Chen et al, 2014;Esmaili et al, 2014;Hatami and Esmaili, 2015).…”

Section: Introductionmentioning

confidence: 98%

Experimental and numerical studies of the performance of the new reinforcement system under pull-out conditions

Mosallanezhad

Taghavi

Hataf

et al. 2016

Geotextiles and Geomembranes

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Interaction between cohesive-frictional soil and various grid reinforcements

Cited by 96 publications

References 3 publications

Soil Geosynthetic Interaction: Design Parameters from Experimental and Theoretical Analysis

Soil Geosynthetic Interaction: Design Parameters from Experimental and Theoretical Analysis

Direct shear behaviour of residual soil–geosynthetic interfaces – influence of soil moisture content, soil density and geosynthetic type

Experimental and numerical studies of the performance of the new reinforcement system under pull-out conditions

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