Determination of the Small-Scale Physical Model Parameters of Pavement Structure

Valašková, Veronika; Vlček, Jozef; Papán, Daniel

doi:10.3390/su12229637

Cited by 3 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An assembly with a precise integrating sound level meter for measuring the noise situation was placed in place B1H. The system uses verified acoustic software by Brüel and Kjaer (BK) [34,35]. Its distance from the nearest tram line track (K1) in the direction of Petržalka-Centre is about 3.0 m. The track of the K2 tram line in the direction of Centre-Petržalka is about 5.4 m away from point B1H.…”

Section: Measurement Methodology and Measuring Linementioning

confidence: 99%

Modernization of Heavy Loaded Tram Radial Effect on Noise and Vibration

2022

Self Cite

View full text Add to dashboard Cite

The noise and vibration that cause deterioration of comfort at specific locations can be reduced by modernisation of tram lines in some large cities where dense development surrounds tram lines. The paper deals with the impact of noise and vibration produced by tram traffic. Its aim was to verify whether the modernisation of one of the busiest tram lines in the capital of Slovakia had an impact on the reduction of noise and vibration emissions arising in its surroundings. The paper analysed experimental measurements conducted at the busiest locations of the studied tram line, focusing on the parameters LAeq and vrms. The methodology for reducing the adverse effects of noise and vibration is based on the modernisation of the tramway line, characterised in detail in the paper. The presentation and analysis of the measurement results are followed by conclusions that underline the importance of reducing noise and vibration emissions generated by tram traffic by modernising the tram line network.

show abstract

Section: Measurement Methodology and Measuring Linementioning

confidence: 99%

Modernization of Heavy Loaded Tram Radial Effect on Noise and Vibration

2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Results showed that regardless of the thickness of the aggregate base course layer, the surface deformation was diminished when the geogrid membrane was placed at a distance equating to half of the radius of the loaded area (D = 0.5r). Previous studies (Valašková et al, [27]) investigated the modeling of the pavement at a small scale, including the subgrade, experimentally and numerically. To establish the bearing capacity and settlement, a static plate-load test is utilized.…”

Section: Introductionmentioning

confidence: 99%

Performance of Enhanced Problematic Soils in Roads Pavement Structure: Numerical Simulation and Laboratory Study

Abdullah

2023

Sustainability

View full text Add to dashboard Cite

The deficiency of high-quality soils in Saudi Arabia’s southern and northern regions, as well as along the Arabian Gulf coasts, is regarded as one of the most common issues with the construction of roads. High compressibility, low shear strength, substantial volume change (particularly in Sabkha), and low bearing capacity are the most typical issues with these problematic soils. In this study, finite element simulations were performed using the Plaxis 3D software v20 to simulate the performance and study the critical responses (fatigue, rutting strains, and damage ratio) of an enhanced pavement structure with a geogrid reinforcement resting on the naturally problematic Sabkha subgrade. A normal asphalt concrete layer, a base layer of Sabkha soil stabilized with Foamed Sulfur Asphalt (FSA), and a sand dune subbase layer comprised the pavement structure. For each layer, the model’s input parameters were a mix of laboratory and literature data. The simulation was performed on a pavement structure without reinforcement and on another section enhanced with a geogrid positioned at various locations to determine the ideal placement for lowering the important responses such as fatigue, rutting stresses, and damage ratio. The nonlinear behavior of an FSA–Sabkha base, sand subbase layer, and Sabkha subgrade was simulated using the hardening soil model, whereas the asphaltic concrete layer and geogrid material were simulated using the linear elastic model. The findings of the simulations demonstrated that placing geogrid reinforcement at the top of the subgrade layer resulted in the greatest reduction in horizontal tensile (fatigue) and vertical compressive (rutting) strains, as well as vertical displacement (32.71%, 13.2%, and 14.2%, respectively). In addition, geogrid reinforcement greatly reduced the fatigue damage ratio (33% to 55%), although the reduction in the rutting damage ratio was slightly lower (14% to 30%). The simulation results were validated using a wheel tracking machine and it was clear that there is a reasonable agreement between the results.

show abstract

“…The procedure used in the evaluation of the research topic, where the concrete slab and the subsoil under the slab were tested with dynamic effects, can be applied to the layer treated with slag [27]. It would also be appropriate to use slag as a backfill material in a mechanically stabilized rock structure, as analyzed in the study by [28,29]. For a comprehensive analysis, it is necessary to know the volume of the slag material located on the site.…”

Section: Introductionmentioning

confidence: 99%

Determination of the Basic Geotechnical Parameters of Blast-Furnace Slag from the Kremnica Region

Bulko,

Masarovičová,

Gago

2023

Materials

View full text Add to dashboard Cite

A decisive aspect of site evaluation for construction is the presence of anthropogenic materials occurring in the geological environment. The geotechnical properties of blast-furnace slag were investigated as a potential substitute for aggregates in the construction industry. The basic geotechnical parameters of the slag were determined, which are critical for evaluating its stability, environmental impact, and usability in geotechnical construction. The research focused on monitoring the physical and mechanical properties of the two samples, and also included mineralogical analysis. The obtained results demonstrated that the slag belongs to the category of poorly graded gravel, G2/GP, and gravel with an admixture of fine-grained soil, G3/G-F. In addition, other important parameters, such as the water disintegration of the slag aggregate, the minimum and maximum bulk densities, the California bearing ratio (CBR), the oedometric modulus (Eoed), and shear tests (the angle of internal friction φ and cohesion c), were determined. The results from this paper provide important information for the proper management of blast-furnace slag so to minimize its environmental impact and achieve sustainability in the mining industry. At the same time, it enables a better understanding of the use of slag as a substitute for aggregates in geotechnical tasks. Despite its local importance in relation to the investigated case, the presented study has significant educational and scientific value for the construction sector, where it is necessary to evaluate anthropogenic activities and materials.

show abstract

Determination of the Small-Scale Physical Model Parameters of Pavement Structure

Cited by 3 publications

References 31 publications

Modernization of Heavy Loaded Tram Radial Effect on Noise and Vibration

Modernization of Heavy Loaded Tram Radial Effect on Noise and Vibration

Performance of Enhanced Problematic Soils in Roads Pavement Structure: Numerical Simulation and Laboratory Study

Determination of the Basic Geotechnical Parameters of Blast-Furnace Slag from the Kremnica Region

Contact Info

Product

Resources

About