Granular Soil Relationship Between Angle of Internal Friction and Uniformity Coefficient

Zakarka, Mindaugas; Skuodis, Šarūnas

doi:10.1007/978-3-031-20172-1_8

Cited by 1 publication

(1 citation statement)

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“…They are now employed in preventing asphalt cracks [3,4], addressing significant settlement concerns beneath pile-supported embankments [5], fabricating stone columns [6], constructing shallow strip foundations [7,8], protecting pipelines [9], and reducing CO 2 [10], among other uses. In road infrastructure, geogrids are a common choice, specifically designed for enhancing load-bearing capacity and reducing soil settlement [11][12][13]. Although both functions involve mechanical improvements, the properties required to fulfill them are distinctively different [14].…”

Section: Introductionmentioning

confidence: 99%

Triaxial Test of Coarse-Grained Soils Reinforced with One Layer of Geogrid

Zakarka,

Skuodis,

Dirgėlienė

2023

Applied Sciences

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Geosynthetics play a pivotal role in modern infrastructure projects, with geogrids serving as a common choice for enhancing bearing capacity and reducing soil settlement in road construction. This study investigates the influence of density and uniformity coefficients on geogrid-reinforced sandy and gravelly soils through a series of consolidated drained triaxial tests. The research covers six distinct soil types from Lithuania, each characterized by particle size distribution analysis and classified using various standards. A polyester biaxial geogrid is employed, and test specimens are prepared with and without geogrid reinforcement. Triaxial compression tests are performed at different cell pressures, mirroring real-world conditions in road construction. The results highlight the critical role of cell pressure in the reinforcement effect, with higher pressures reducing the geogrid’s influence. The study also emphasizes the importance of soil type, as gravel soils consistently exhibit higher deviatoric stress than sandy soils. Notably, the geogrid enhances cohesion but reduces the angle of internal friction in most cases. Overall, this research provides valuable insights into the intricate interplay between soil properties, geogrid reinforcement, and cell pressure, shedding light on the mechanical behavior of geosynthetic-reinforced soils in road construction applications.

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