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All Outputs (35)

Exploring the Use of Rock Flour for Sustainable Peat Stabilisation (2024)
Conference Proceeding
Bernal-Sanchez, J., Coll, J., Leak, J., & Barreto, D. (2024). Exploring the Use of Rock Flour for Sustainable Peat Stabilisation. In Geo-Congress 2024: Soil Improvement, Sustainability, Geoenvironmental, and Cold Regions Engineering (450-460). https://doi.org/10.1061/9780784485330.046

This paper aims to investigate the mechanical behaviour of peat stabilised with glacial rock flour for foundation construction. Peat, a natural organic soil, presents challenges for construction due to its high compressibility and low bearing capacit... Read More about Exploring the Use of Rock Flour for Sustainable Peat Stabilisation.

A Grading Entropy Review of PSD-Based Frost Susceptibility Criteria (2024)
Conference Proceeding
Leak, J., Barreto, D., Wright, C., Bernal Sanchez, J., & Imre, E. (2024). A Grading Entropy Review of PSD-Based Frost Susceptibility Criteria. In T. M. Evans, N. Stark, & S. Chang (Eds.), Geo-Congress 2024: Soil Improvement, Sustainability, Geoenvironmental, and Cold Regions Engineering (714-724). https://doi.org/10.1061/9780784485330.072

Particle size distribution (PSD) is recognised among geotechnical engineers as an informative soil descriptor, and often used to predict geomechanical behaviours. However, the effectiveness of PSD to characterise frost action is debatable. Existing c... Read More about A Grading Entropy Review of PSD-Based Frost Susceptibility Criteria.

Using grain size distribution to estimate permeability (2023)
Conference Proceeding
Imre, E., Bálint, Á., Houng, D. T. Q., López, L. L., Répássy, L., Mwinken, D. K., …Feng, S. (in press). Using grain size distribution to estimate permeability. In Proceedings of the XVIII ECSMGE 2024

This study examines the saturated water permeability using samples of loose and dense 2-fraction coarse sand mixtures. Besides the non-normalised entropy variables some additional parameters like density, diameter descriptors are used to characterize... Read More about Using grain size distribution to estimate permeability.

Model Fitting for Determining the Parameter of the Pore Size Distribution (2023)
Conference Proceeding
Imre, E., Mwinken, D. K., & Barreto, D. (2023). Model Fitting for Determining the Parameter of the Pore Size Distribution. In Book of Abstracts from 9th International Scientific Conference on Advances in Mechanical Engineering (43)

The computation of the SWCC requires prior estimation of the pore-size distribution (POSD) which is computed from the PSD. The process described in detail by [1-3]. It needs a value of a which is a model parameter related to particle shape and orient... Read More about Model Fitting for Determining the Parameter of the Pore Size Distribution.

Particle size distribution induced fabric effects on the onset and post liquefaction behaviours of soils (2023)
Conference Proceeding
Leak, J., & Barreto, D. (in press). Particle size distribution induced fabric effects on the onset and post liquefaction behaviours of soils. In Proceedings of the XVIII ECSMGE 2024

Liquefaction in soils is a detrimental phenomenon. Microscale behaviours and their influence on the macroscale response during and after the onset of liquefaction are not well understood. In particular, how contact behaviours effect macroscale proper... Read More about Particle size distribution induced fabric effects on the onset and post liquefaction behaviours of soils.

The use of grading entropy in assessing granular soil hydraulic conductivity (2023)
Conference Proceeding
Feng, S., Vardanega, P., Ibraim, E., Barreto, D., & Imre, E. (2023). The use of grading entropy in assessing granular soil hydraulic conductivity. In A. Zhussupbekov, A. Sarsembayeva, & V. N. Kaliakin (Eds.), Smart Geotechnics for Smart Societies: Proceedings of the 17th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (17th ARC, Astana, Kazakhstan, 14-18 August, 2023) (314-319). https://doi.org/10.1201/9781003299127-28

Hydraulic conductivity is an important geotechnical engineering property as it is linked to the performance of many geo-structures. This study used a recently compiled granular soil database (CG/KSAT/7/1278) to evaluate the best fit probability densi... Read More about The use of grading entropy in assessing granular soil hydraulic conductivity.

Minimum dry density in terms of grading entropy coordinates (2023)
Conference Proceeding
Imre, E., Barreto, D., Datcheva, M., Singh, V. P., Baillie, W., Feng, S., & Firgi, T. (2023). Minimum dry density in terms of grading entropy coordinates. In A. Zhussupbekov, A. Sarsembayeva, & V. N. Kaliakin (Eds.), Smart Geotechnics for Smart Societies: Proceedings of the 17th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering (17th ARC, Astana, Kazakhstan, 14-18 August, 2023) (402-406). https://doi.org/10.1201/9781003299127-42

In this paper, the grading entropy method is applied together with advanced interpolation methods in order to establish empirical relationships between grading entropy coordinates and minimum dry density of sands. Three databases consisting of 94 sam... Read More about Minimum dry density in terms of grading entropy coordinates.

A DEM study on the effect of inherent variability of assemblies of spherical particles (2023)
Conference Proceeding
Leak, J., & Barreto, D. (2023). A DEM study on the effect of inherent variability of assemblies of spherical particles. In Proceedings 10th NUMGE 2023: 10th European Conference on Numerical Methods in Geotechnical Engineering. https://doi.org/10.53243/NUMGE2023-388

This study presents DEM simulations of assemblies of spheres using periodic boundaries to assess the effect of inherent sample variability. DEM specimens with different particle size distributions (PSDs) were randomly generated, and then isotropicall... Read More about A DEM study on the effect of inherent variability of assemblies of spherical particles.

Soil parameters in terms of entropy coordinates (2023)
Conference Proceeding
Imre, E., Firgi, T., Baille, W., Datcheva, M., Barreto, D., Feng, S., & Singh, V. (2023). Soil parameters in terms of entropy coordinates. In 8th International Conference on Unsaturated Soils (UNSAT 2023). https://doi.org/10.1051/e3sconf/202338225003

In the ongoing research, an approximate, grading entropy based, advanced interpolation method is applied to establish empirical functions between the grading curves and the model parameters of sands. The space of the grain size distribution curves wi... Read More about Soil parameters in terms of entropy coordinates.

Dynamic Behaviour of a Geotechnical Seismic Isolation System with Rubber-Sand Mixtures to Enhance Seismic Protection (2022)
Conference Proceeding
Bernal-Sanchez, J., McDougall, J., Miranda-Manzanares, M., & Barreto, D. (2022). Dynamic Behaviour of a Geotechnical Seismic Isolation System with Rubber-Sand Mixtures to Enhance Seismic Protection. In Proceedings of the 3rd European Conference on Earthquake Engineering & Seismology (2674-2683)

A Geotechnical Seismic Isolation (GSI) system is proposed in this study based on the use of Rubber-Soil mixtures (RSm) to facilitate the benefits of dynamic soil-foundation structure interaction. The latter is possible due to the lower stiffness and... Read More about Dynamic Behaviour of a Geotechnical Seismic Isolation System with Rubber-Sand Mixtures to Enhance Seismic Protection.

The permeability variables of granular matter (2022)
Conference Proceeding
Imre, E., Illes, Z., Balint, A., Gonzales, H., Repassy, L., Quynh Huong, D. T., …Singh, V. P. (2022). The permeability variables of granular matter. In VIth International Symposium-2022 on “Biosphere & Environmental Safety” Proceedings Book (201-208)

No “unique” relation between soil parameters and grading curves of granular matter can be elaborated. In case some statistics are used (e.g., d10), then infinite many grading curves may be related to the same value of it. Moreover, several densities... Read More about The permeability variables of granular matter.

Examination of saturated hydraulic conductivity using grading curve functions (2021)
Conference Proceeding
Imre, E., Bálint, E. Á., Nagy, L., Lőrincz, J., Illés, Z., Barreto, D., …Feng, S. (2021). Examination of saturated hydraulic conductivity using grading curve functions. In Proceedings of the 6th International Conference on Geotechnical and Geophysical Site Characterization

In a previous research program 74 artificial soil mixtures of natural fluvial soils were prepared in 4 series of measurements for falling head permeability testing, differing in d 10. The conclusions drawn from the original investigations were as fol... Read More about Examination of saturated hydraulic conductivity using grading curve functions.

Revisiting Hardin’s parameters for the quantification of particle breakage – A statistical entropy approach (2021)
Conference Proceeding
Leak, J., Barreto, D., Dimitriadi, V., & Imre, E. (2021). Revisiting Hardin’s parameters for the quantification of particle breakage – A statistical entropy approach. In Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media. https://doi.org/10.1051/epjconf/202124907001

It is well recognised that particle breakage in granular materials is affected by stress level, stress path, initial density, and particle size distribution (PSD), amongst others. Furthermore, it has been shown that breakage has a significant influen... Read More about Revisiting Hardin’s parameters for the quantification of particle breakage – A statistical entropy approach.

The Saturated Hydraulic Conductivity Of 2-Fraction Granular Soils And The Internal Stability (2020)
Conference Proceeding
Imre, E., Illés, Z., Bálint, Á., Barreto, D., Khaliunaa, A., Tsendsuren, B., …Lizeth Guadalupe, L. L. (2020). The Saturated Hydraulic Conductivity Of 2-Fraction Granular Soils And The Internal Stability. In Proceedinngs Book of 11th ICEEE – 2020 Conference (267-274)

The four grading entropy coordinates can be used for soil classification on the basis of grain size and the grading curve shape (similarly e.g., to the diameter values). The grading entropy coordinates give information on several basic Physics featur... Read More about The Saturated Hydraulic Conductivity Of 2-Fraction Granular Soils And The Internal Stability.

Grading entropy coordinates and criteria for evaluation of liquefaction potential (2019)
Conference Proceeding
Barreto Gonzalez, D., Leak, J., Dimitriadi, V., McDougall, J., Imre, E., & Lőrincz, J. (2019). Grading entropy coordinates and criteria for evaluation of liquefaction potential. In Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions (1346-1353). https://doi.org/10.1201/9780429031274

Several methods are commonly used for the evaluation of liquefaction potential in soils. These include criteria based on SPT and CPT tests, shear wave velocity measurements and gradation limits, amongst others. This study applies the concept of gradi... Read More about Grading entropy coordinates and criteria for evaluation of liquefaction potential.

Grading curves and internal stability (2019)
Conference Proceeding
Imre, E., Barreto, D., Talata, I., Baille, W., Rahemi, N., Goudarzy, M., …Singh, V. (2019). Grading curves and internal stability.

The measured grading curve is an empirical distribution function, a step function. This is considered here as a discrete distribution with fixed statistical cells. In the grading entropy theory it is characterized by the... Read More about Grading curves and internal stability.

A note on seismic induced liquefaction (2019)
Conference Proceeding
Imre, E., Lőrincz, J., Trang, P., Barreto, D., Goudarzy, M., Rahemi, N., …Singh, V. (2019). A note on seismic induced liquefaction. In XVII European Conference on Soil Mechanics and Geotechnical Engineering: Conference proceedings. https://doi.org/10.32075/17ECSMGE-2019-0979

Any particle size distribution can be characterized by two parameter pairs (derived from the statistical entropy formula of discrete distributions) more effectively than simple diameter values (i.e., d50). The first entropy parameter is a conti... Read More about A note on seismic induced liquefaction.

Preliminary study on the relationship between dry density of sands and the grading entropy parameters (2019)
Conference Proceeding
Imre, E., Lorincz, J., Trang, P., Csonka, I., Kaczvinszki-Szabó, V., Telekes, G., …Singh, V. (2019). Preliminary study on the relationship between dry density of sands and the grading entropy parameters. In XVII European Conference on Soil Mechanics and Geotechnical Engineering: Conference proceedings. https://doi.org/10.32075/17ECSMGE-2019-0996

Some earlier data were analysed, searching the relation between the minimum dry density emax and the two grading entropy parameters (mean log diameter and fraction number characteristic). The data were split into two components. The first... Read More about Preliminary study on the relationship between dry density of sands and the grading entropy parameters.

Use of Compaction Grouting as Ground Improvement Technique in Compressible Solid Waste Landfill (2019)
Conference Proceeding
Tsitsas, G., Dimitriadi, V., Barreto, D., & Ciortan, R. (2019). Use of Compaction Grouting as Ground Improvement Technique in Compressible Solid Waste Landfill. In Proceedings of the XVII European Conference on Soil Mechanics and Geotechnical Engineering. https://doi.org/10.32075/17ECSMGE-2019-0292

Ground improvement methods are increasingly being used as means to control settlements and improve the shear strength of foundation soils. The compaction grouting (CG) method is a ground improvement method that is used as means... Read More about Use of Compaction Grouting as Ground Improvement Technique in Compressible Solid Waste Landfill.