Regulations for use of geosynthetics for road embankments and subgrades

Vaitkus, Audrius; Šiukščius, Aurimas; Ramūnas, Vaidas

doi:10.3846/bjrbe.2014.11

Cited by 9 publications

(2 citation statements)

References 19 publications

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“…In general, all of the necessary geogrid properties are evaluated with partial safety factors [6][7][8] whose application ensures safety of the entire geotechnical construction, which is reinforced with geogrid during storage, installation, loading, durability, etc. [8] Research conducted in recent decades has shown that different types of geosynthetic reinforcements are widely used to improve the shear strength of soil materials.…”

Section: Introductionmentioning

confidence: 99%

Using Triaxial Tests to Determine the Shearing Strength of Geogrid-Reinforced Sand

Skuodis

Dirgėlienė

Medzvieckas

2020

Studia Geotechnica Et Mechanica

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Geogrids are widely used in civil engineering projects to reinforce road and railway structures. This paper presents research on the shearing strength of soil samples that have been reinforced with geogrids. The relationship between soil and geogrids is explored and evaluated by modeling the mechanical behavior of heterogeneous materials. For the purposes of this research, data obtained from tests of unreinforced sand samples with triaxial cells were compared with the data obtained from tests of reinforced sand samples. It was found that the shearing strength for reinforced samples was higher (from 9% to 49%) compared to unreinforced samples. Some damage to the geogrid was detected during the experiment, and for this reason, the same tests were numerically simulated for both unreinforced samples and samples reinforced with geogrids. Numerical simulations revealed the main reasons for damage to the geogrids during triaxial testing.

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Section: Introductionmentioning

confidence: 99%

Using Triaxial Tests to Determine the Shearing Strength of Geogrid-Reinforced Sand

Skuodis

Dirgėlienė

Medzvieckas

2020

Studia Geotechnica Et Mechanica

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“…This type of asphalt pavement structure strengthening is still being used. However, it is not described in the technical guide for geosynthetics used in the road soil work applications MN GEOSINT ŽD 13 Geosintetikos naudojimo žemės darbams keliuose metodiniai nurodymai (issued in Lithuania in 2013 by Lithuanian Road Administration under the Ministry of Transport and Communications) and neither normative documents of other countries (Vaitkus, Šiukščius, & Ramūnas, 2014) or in other design codes (Meyer & Elias, 1999). Cuelho & Perkins (2016) performed large-scale field trials to identify the most critical geogrid properties for a sufficient stabilisation and (or) reinforcement function.…”

Section: Introductionmentioning

confidence: 99%

Long Term Behaviour of An Asphalt Pavement Structure Constructed on a Geogrid-Reinforced Subgrade Over Soft Soils

Šiukščius

Vorobjovas

Vaitkus

et al. 2019

BJRBE

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Many roads with asphalt pavement are being reconstructed every year, as their quality becomes insufficient by the requirements. As it is well- known, old roads were built not in the very best quality, so doing reconstruction projects in the most cases there were required to deal with soft soils that are under the existing road structure. Geogrid reinforcement was widely used to solve issues of soft soil in Lithuania. There are projects where geogrid reinforcement is used to control road pavement roughness when there are layers of peat or silt under road structure instead of using concrete piles or geosynthetic-encased soil columns. This type of geogrid reinforcement application is unexplained in any normative-technical document but widely used in Lithuania. This application was usually made constructively without any calculations, choosing the reinforced solution by reducing the geogrid tensile strength or layer quantity compared to reinforced load transfer platform over piles. This paper evaluates the long-term influence of geogrid- reinforced subgrade on the roughness of asphalt surfacing and bearing capacity of the road structure when the soft peaty soils stratify in the deeper layers of the subgrade. There were compared the reinforced sections to adjacent sections to see the effect and fortunately a large number of adjacent sections were also strengthened, mostly by lime stabilisation. Therefore, this comparison allows making more insights on the long-term performance of the strengthened subgrade and influence on the road quality. This research gives recommendations on how the geogrids has to be selected to be used in this kind of application.

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Finite Element-Based Design and Analysis of Unpaved Roads over Difficult Subsoil: Sustainable Application of Geotextile Reinforcement to Attain Long-Term Performance

Sarma,

Dey

2024

Indian Geotech J

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Regulations for use of geosynthetics for road embankments and subgrades

Cited by 9 publications

References 19 publications

Using Triaxial Tests to Determine the Shearing Strength of Geogrid-Reinforced Sand

Using Triaxial Tests to Determine the Shearing Strength of Geogrid-Reinforced Sand

Long Term Behaviour of An Asphalt Pavement Structure Constructed on a Geogrid-Reinforced Subgrade Over Soft Soils

Finite Element-Based Design and Analysis of Unpaved Roads over Difficult Subsoil: Sustainable Application of Geotextile Reinforcement to Attain Long-Term Performance

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