Outputs (12)

Exploring the Use of Rock Flour for Sustainable Peat Stabilisation (2024)
Presentation / Conference Contribution
Bernal-Sanchez, J., Coll, J., Leak, J., & Barreto, D. (2024, February). Exploring the Use of Rock Flour for Sustainable Peat Stabilisation. Presented at Geo-Congress 2024, Vancouver, British Columbia, Canada

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)
Presentation / Conference Contribution
Leak, J., Barreto, D., Wright, C., Bernal Sanchez, J., & Imre, E. (2024, February). A Grading Entropy Review of PSD-Based Frost Susceptibility Criteria. Presented at Geo-Congress 2024, Vancouver, British Columbia

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)
Presentation / Conference Contribution
Imre, E., Bálint, Á., Houng, D. T. Q., López, L. L., Répássy, L., Mwinken, D. K., Illés, Z., Datcheva, M., Baille, W., Barreto, D., Leak, J., & Feng, S. (2024, August). Using grain size distribution to estimate permeability. Presented at XVIII European Conference on Soil Mechanics and Geotechnical Engineering, Lisbon, Portugal

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.

Particle size distribution induced fabric effects on the onset and post liquefaction behaviours of soils (2023)
Presentation / Conference Contribution
Leak, J., & Barreto, D. (2024, August). Particle size distribution induced fabric effects on the onset and post liquefaction behaviours of soils. Presented at XVIII European Conference on Soil Mechanics and Geotechnical Engineering, Lisbon, Portugal

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.

A DEM study on the effect of inherent variability of assemblies of spherical particles (2023)
Presentation / Conference Contribution
Leak, J., & Barreto, D. (2023, June). A DEM study on the effect of inherent variability of assemblies of spherical particles. Presented at NUMGE 2023: 10th European Conference on Numerical Methods in Geotechnical Engineering, London

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.

Numerical Experimental Investigations Into Force Chain Networks In Soils: A Grading Entropy Approach (2023)
Presentation / Conference Contribution
Leak, J., Barreto, D., & Imre, E. (2023, May). Numerical Experimental Investigations Into Force Chain Networks In Soils: A Grading Entropy Approach. Paper presented at Numerical Analysis of Geomaterials Conference (NANGE), Assisi, Italy

These slides were presented at the numerical analysis of geomaterials conference in Assisi in 2023. They detail an experimental and numerical investigation into the effect of particle size distribution (PSD) on soil fabric. Grading entropy was used t... Read More about Numerical Experimental Investigations Into Force Chain Networks In Soils: A Grading Entropy Approach.

What Can Grading Entropy Tell Us About Soil Fabric? (2022)
Presentation / Conference Contribution
Leak, J., Barreto, D., & Dimitriadi, V. (2022, December). What Can Grading Entropy Tell Us About Soil Fabric?. Paper presented at 19th Annual Geomechanics Form Micro to Macro Conference, London

These slides were presented at the 19th annual geomechanics form micro to macro conference at Imperial College London in 2022. They detail an investigation into characterising soil fabric effects using the normalised entropy coordinates proposed by L... Read More about What Can Grading Entropy Tell Us About Soil Fabric?.

Fines content effects on liquefaction susceptibility, void ratio & soil fabric: a grading entropy approach (2022)
Presentation / Conference Contribution
Leak, J. (2022, April). Fines content effects on liquefaction susceptibility, void ratio & soil fabric: a grading entropy approach. Paper presented at 18th European Mechanics of Materials Conference: Mechanics of porous and granular materials, Oxford

These slides were presented at the 18th European Mechanics of Materials Conference: Mechanics of porous and granular materials (2022). They discuss research into the effect of increasing fines content in soils with regard to their internal stability.... Read More about Fines content effects on liquefaction susceptibility, void ratio & soil fabric: a grading entropy approach.

A DEM Study On The Effect Of Inherent Variability In Assemblies Of Spherical Particles (2021)
Presentation / Conference Contribution
Leak, J., Barreto, D., & Dimitriadi, V. (2021, December). A DEM Study On The Effect Of Inherent Variability In Assemblies Of Spherical Particles. Paper presented at 18th Annual Geomechanics From Micro to Macro Conference, Dundee

These slides were presented at the 18th annual geomechanics from micro to macro conference in 2021 at the university of Dundee. They detail a study on the effect of inherent variability on soil parameters (such as initial void ratio, peak stress etc.... Read More about A DEM Study On The Effect Of Inherent Variability In Assemblies Of Spherical Particles.

Revisiting Hardin’s parameters for the quantification of particle breakage – A statistical entropy approach (2021)
Presentation / Conference Contribution
Leak, J., Barreto, D., Dimitriadi, V., & Imre, E. (2021, July). Revisiting Hardin’s parameters for the quantification of particle breakage – A statistical entropy approach. Presented at Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media, Buenos Aires (Virtual), Argentina

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.