Investigating the monotonic behavior of fiber-reinforced soil under triaxial compression using experimental modeling

Javdanian, Hamed; Soltani, Navid; Shams, Gholamreza; Ghorbani, Soroush

doi:10.1007/s40808-020-00920-9

Cited by 4 publications

(2 citation statements)

References 34 publications

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“…In recent years, researchers have investigated the effects of various fibers on the shear strength of sand [5][6][7][8][9]. They have analyzed the impact of factors such as grain size [10], moisture content [10][11][12], relative density [13], fiber aspect ratio [14], fiber content [15][16][17], fiber distribution orientation [18][19][20][21], and stress paths [22] using triaxial tests or direct shear tests [23,24]. The results of these tests have indicated that higher compactness leads to a larger shear modulus in sand with fibers.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Analysis of Palm-Fiber-Reinforced Sand through Triaxial Tests

et al. 2023

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Triaxial tests were employed to investigate palm-fiber-reinforced sand under consolidated drained conditions in this study. Sixteen series of triaxial tests were carried out to investigate the properties of palm-fiber-reinforced sand. One series of pure sand was also employed for comparison. The deviator stress, stress path, shear strength, volume change, void ratio, and enhanced coefficient of fiber-reinforced sand were studied with different fiber lengths varying from 8 mm to 20 mm and fiber contents varying in mass from 0.3% to 0.9%. The test results indicate that palm fibers were beneficial for enhancing the shear strength of the sand. Compared to the peak shear strength increase of about 10% to 20%, the critical shear strength increased much more, by a little over 100%. Therefore, the fibers played a key role in enhancing the critical shear strength of the sand but not the peak shear strength of the sand. The addition of fiber to sand resulted in prolongation of the axial strain required to reach the critical void ratio and improved the sand’s ability to resist larger deformations, enhancing its toughness. Furthermore, the critical shear strength of the sand was positively correlated with both fiber content and fiber length, and the axial strain required to reach the critical shear strength increased with increasing fiber content and length. This study provides valuable experimental data and serves as a reference for temporary reinforcement in geotechnical engineering.

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Section: Introductionmentioning

confidence: 99%

Mechanical Analysis of Palm-Fiber-Reinforced Sand through Triaxial Tests

et al. 2023

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“…Additionally, the researchers discovered that the nature and length of the fibre had an impact on the yield matrix of fibre, cement, sand, and they found that the polypropylene fibres improved their mechanical behaviour and reduced the beach sand dilation [2][3][4]. Hamed et al [5], also tested sand specimens reinforced with glass and polypropylene fibres under varied confining pressures and relative densities in a series of monotonic triaxial tests. The results showed that fibres improved shear strength by increasing confinement and relative density.…”

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Mechanical behaviour of sandy soils embankments treated with cement and reinforced with discrete elements (fibres)

Bouteben

Boudaoud

2022

Frattura Ed Integrità Strutturale

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It is well known that the reinforcement of the Soil is considered as a solution to its stability problems. This technique ameliorates the mechanical and physical comportment of the soil. Based on this, this research paper aims at investigating the behaviour of a specific type of dried-cemented-sandy soil reinforced with discrete elements such as polypropylene fiber basically through experimental tests. The latter are a series of consolidated drained triaxial tests which were carried out on samples of sand that are prepared with 0, 3 and 6% of cement, reinforced with 1% of polypropylene fiber (12, 18 mm) randomly distributed. Furthermore, those contents are measured by the volume of dry sand. In addition to these tests, a parametric study has also been conducted on a road embankment using a finite element program such as Plaxis 2D in order to observe the variation of different parameters like safety factor and the displacements (Ut, Ux, Uy). The test results showed that the addition of cement and polypropylene fiber of different accommodations increased both cohesion and friction angle of sands while the numerical results indicated that the presence of these additions improved the safety factor and decreased significantly the displacements.

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Seismic response evaluation of strip footing on geogrid-reinforced slope

Soltani¹

2021

Innov. Infrastruct. Solut.

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Investigating the monotonic behavior of fiber-reinforced soil under triaxial compression using experimental modeling

Cited by 4 publications

References 34 publications

Mechanical Analysis of Palm-Fiber-Reinforced Sand through Triaxial Tests

Mechanical Analysis of Palm-Fiber-Reinforced Sand through Triaxial Tests

Mechanical behaviour of sandy soils embankments treated with cement and reinforced with discrete elements (fibres)

Seismic response evaluation of strip footing on geogrid-reinforced slope

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