Influence of Geogrid Aperture Size on the Behavior of Mechanically Stabilized Pavements

Baadiga, Ramu; Balunaini, Umashankar; Saride, Sireesh

doi:10.1061/9780784483510.025

Cited by 6 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Consolidated Drained direct shear test to obtain the friction angle and the cohesion value was carried out on a sample of the soil from the mold after the Axial Load Test, with a dry density of 1.81 g/cm 3 and moisture content at 14.30%. The test was based on the ASTM D3080 [23], obtaining a friction angle of 39.17° and a cohesion of 31.38 kPa.…”

Section: Direct Shear Testmentioning

confidence: 99%

“…The test was based on the ASTM D3080 [23], obtaining a friction angle of 39.17° and a cohesion of 31.38 kPa. Under the same test criteria, the soil was analyzed in a saturated consolidated-drained condition, originally the soil sample was obtained from the mold after the Axial Load Test, with a dry density of 1.73 g/cm 3 and a moisture content of 15.25%, and then was saturated, obtaining a friction angle of 28.92°and a cohesion of 0.00 kPa. The test was run to obtain the cohesion parameters and internal friction angle of particles to be used in the calculation of ultimate load capacity with the use of numerical modeling as shown in section 5.…”

Section: Direct Shear Testmentioning

confidence: 99%

“…A known weakness of the soil is the lack of tensile strength, which makes it necessary to reinforce it for adequate performance in certain uses such as ground improvement techniques for soil retaining-walls, slopes, foundations and pavements, which use geogrids and other geosynthetics to improve the system performance [1], [2]. Despite the high cost of geogrids, they have gained popularity for their wide range of applications in soft soils, but it is important to consider the type of material, geogrid type, and aperture size of the mesh, as many researchers showed that it plays an important role in the performance of mechanically stabilized pavements [3]. The use of geogrids in pavements as reinforcement for pavement layers provides lateral restraint that supports the base and subbase material, this type of reinforcement can help reduce the thickness of the aggregate layer [4].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of geogrid arrangement on the bearing capacity of a granular soil on physical models and its comparison to theoretical equations

Albuja-Sánchez,

Cóndor,

Oñate

et al. 2023

Preprint

View full text Add to dashboard Cite

This study presents an analysis of the influence of geogrid distribution on the bearing capacity of granular soils. For this purpose, the bearing capacity is compared based on 3 arrangements, uniform, trapezoidal, and inverted trapezoidal, with 2 types of geogrids, biaxial and multiaxial, under the application of an axial load. The tests performed were analyzed in three forms in which the trapezoidal distribution was the best arrangement for biaxial and multiaxial geogrids. The first analysis considers the peaks for each stress-strain curve, the trapezoidal distribution increases the bearing capacity by 36% and 33% for biaxial and multiaxial geogrids, respectively. The second analysis considers an s/B ratio of 10%, which had an average increment of 30.5% for the two types of geogrids. The third analysis considers a 20% of s/B ratio, which showed a 56% and 81% of BCR increase for biaxial and multiaxial geogrids respectively. From an economical and environmental analysis, the trapezoidal distribution saves 7% of material compared to the traditional uniform distribution. The comparison between physical and numerical models with theoretical equations is presented.

show abstract

Section: Direct Shear Testmentioning

confidence: 99%

Section: Direct Shear Testmentioning

confidence: 99%