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An Innovative Approach to Geotechnical Seismic Isolation: Rubber-Soil Mixture Trenches (2024)
Presentation / Conference Contribution
Bernal-Sanchez, J., Mcdougall, J., Barreto, D., Dimitriadi, V., Leak, J., & Nseabasi, M. (2024, June). An Innovative Approach to Geotechnical Seismic Isolation: Rubber-Soil Mixture Trenches. Presented at 18th World Conference on Earthquake Engineering, Milan, Italy

This study presents a Geotechnical Seismic Isolation (GSI) system proposed for utilising Rubber-Soil mixtures (RSm) to enhance the dynamic performance of a modified soil and foundation structure. The inclusion of RSm enables the system to exhibit low... Read More about An Innovative Approach to Geotechnical Seismic Isolation: Rubber-Soil Mixture Trenches.

Dynamic Behaviour of a Geotechnical Seismic Isolation System with Rubber-Sand Mixtures to Enhance Seismic Protection (2022)
Presentation / Conference Contribution
Bernal-Sanchez, J., McDougall, J., Miranda-Manzanares, M., & Barreto, D. (2022, September). Dynamic Behaviour of a Geotechnical Seismic Isolation System with Rubber-Sand Mixtures to Enhance Seismic Protection. Presented at 3rd European Conference on Earthquake Engineering & Seismology, Bucharest, Romania

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.

Grading entropy coordinates and criteria for evaluation of liquefaction potential (2019)
Presentation / Conference Contribution
Barreto Gonzalez, D., Leak, J., Dimitriadi, V., McDougall, J., Imre, E., & Lőrincz, J. (2019, June). Grading entropy coordinates and criteria for evaluation of liquefaction potential. Presented at 7th International Conference on Earthquake Geotechnical Engineering, Rome, Italy

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.

Experimental assessment of stiffness and damping in rubber-sand mixtures at various strain levels (2019)
Presentation / Conference Contribution
Bernal-Sanchez, J., McDougall, J., Barreto, D., Marinelli, A., Dimitriadi, V., Anbazhagan, P., & Miranda, M. (2019, June). Experimental assessment of stiffness and damping in rubber-sand mixtures at various strain levels. Presented at 7th International Conference on Geotechnical Earthquake Engineering, Rome

The dynamic properties of shredded rubber-soil mixtures (ShRm), comprising a sub-rounded quartz sand combined with small rubber shreds at 0, 10, 20, 30% by mass, were investigated. Testing ranged from small strain, in resonant column apparatus, to la... Read More about Experimental assessment of stiffness and damping in rubber-sand mixtures at various strain levels.

Dynamic behaviour of shredded rubber soil mixtures (2018)
Presentation / Conference Contribution
Bernal-Sanchez, J., McDougall, J., Barreto Gonzalez, D., Miranda, M., & Marinelli, A. (2018, June). Dynamic behaviour of shredded rubber soil mixtures. Presented at 16th European Conference on Earthquake Engineering, Thessaloniki

Residential buildings in high population density areas are seismically vulnerable to the action of major seismic events. The high cost and technical difficulties related to the use of advanced seismic isolations systems precludes its installation to... Read More about Dynamic behaviour of shredded rubber soil mixtures.

Experimental Assessment and Modelling of Coupled Biochemical-Physical-Mechanical Biodegradation Process of a Municipal Solid Waste Sample from Michigan (2017)
Presentation / Conference Contribution
Datta, S., Zekkos, D., Fei, X., & McDougall, J. (2017, September). Experimental Assessment and Modelling of Coupled Biochemical-Physical-Mechanical Biodegradation Process of a Municipal Solid Waste Sample from Michigan. Presented at Coupled Phenomena in Environmental Geotechnics, Leeds

Municipal solid waste (MSW) is biodegradable in landfills under anaerobic conditions. The evolution of the biochemical, physical and mechanical characteristics of MSW are interdependent and is investigated first through an experiment and subsequently... Read More about Experimental Assessment and Modelling of Coupled Biochemical-Physical-Mechanical Biodegradation Process of a Municipal Solid Waste Sample from Michigan.

Review and application of a settlement model for landfills (2017)
Presentation / Conference Contribution
Esteban-Altabella, J., McDougall, J., Colomer-Mendoza, F., Gallardo, A., & Edo-Alcon, N. (2017, October). Review and application of a settlement model for landfills. Presented at 16TH International Waste Management and Landfill Symposium Sardinia 2017

The geotechnical behavior and settlement in landfills has been changing for many years. This behavior in fact depends on many factors and, therefore, making forecasts is complicated due to the effect of biodegradation. In order to solve this issue, m... Read More about Review and application of a settlement model for landfills.

An overview of research activities and achievement in Geotechnics from the Scottish Universities Geotechnics Network (SUGN) (2015)
Presentation / Conference Contribution
Leung, A., Anastasopoulos, I. X., Augarde, C. E., Barreto, D., Brennan, A. J., Brown, M. J. Z., Connolly, D., Coombs, W. M., Davies, T., Gao, Z., Ivanovic, A., Kenny, M., Knappett, J. A., Lombardi, D., McDougall, J., Medero, G., Muir Wood, D., El Mountassir, G., Osman, A. S., Pytharouli, S., …Zielinski, M. (2015, September). An overview of research activities and achievement in Geotechnics from the Scottish Universities Geotechnics Network (SUGN). Presented at 16th European Conference on Soil Mechanics and Geotechnical Engineering, Edinburgh

Design of geotechnical systems is often challenging as it requires the understanding of complex soil behaviour and its influence on field-scale performance of geo-structures. To advance the scientific knowledge and the technological development in ge... Read More about An overview of research activities and achievement in Geotechnics from the Scottish Universities Geotechnics Network (SUGN).

Effect of particle loss on soil behaviour. (2012)
Presentation / Conference Contribution
Kelly, D., McDougall, J., & Barreto, D. (2012, August). Effect of particle loss on soil behaviour. Paper presented at ICSE-6 6th International Conference on Scour and Erosion

Soil particle loss can result in strength and volume reductions which are difficult to predict. This paper investigates the
influence of the removal of fractions of selected particle sizes under different confining pressures. The mass loss
process... Read More about Effect of particle loss on soil behaviour..

Settlement-The Short and the Long of it (2011)
Presentation / Conference Contribution
McDougall, J. (2008, March). Settlement-The Short and the Long of it. Presented at International Symposium on Waste Mechanics

Total settlement in municipal solid waste (MSW) landfills can be considerable, from 25% to 50% of original fill thickness (Bjarngard and Edgers, 1990). Some occurs very quickly, i.e. during the filling phase (or short term), but there remains a signi... Read More about Settlement-The Short and the Long of it.

Waste heterogeneity: an obstacle to models? (2009)
Presentation / Conference Contribution
McDougall, J. (2009, October). Waste heterogeneity: an obstacle to models?. Presented at Shop>Sardinia 2009 12th International Waste Management and Landfill Symposium (Book+CD) ( ) Sardinia 2009 12th International Waste Management and Landfill Symposium

No abstract available.

Mass loss and landfilled waste mechanics. (2009)
Presentation / Conference Contribution
McDougall, J. (2009, March). Mass loss and landfilled waste mechanics. Presented at Third International Workshop "Hydro-Physico-Mechanics of Landfills"

The impact of mass loss on a particulate medium is investigated. Through a series of laboratory tests on a partly soluble sand, the quantitative impact of mass loss is measured at different applied loads. It is shown that for the material in question... Read More about Mass loss and landfilled waste mechanics..

Geomechanics and Long-Term Landfill Settlement (2008)
Presentation / Conference Contribution
McDougall, J. (2008, March). Geomechanics and Long-Term Landfill Settlement. Presented at GeoCongress 2008

Long term landfill settlement is commonly attributed to two phenomena: creep and biodegradation. Biodegradation, which may contribute the greater proportion of long‐term settlement, is a function of a range of factors, many of which are not easily as... Read More about Geomechanics and Long-Term Landfill Settlement.

Assessment of landfill settlement data for evaluation of a hydro-bio-mechanical settlement model. (2007)
Presentation / Conference Contribution
Needham, A., Jones, D. R. V., McDougall, J., Dixon, N., Braithwaite, P., & Rosevear, A. (2007, October). Assessment of landfill settlement data for evaluation of a hydro-bio-mechanical settlement model. Presented at Eleventh International Waste Management and Landfill Symposium,

A hydro-bio-mechanical (HBM) model of waste degradation has been under development for several years to simulate the actual processes involved in the settlement of landfilled wastes. The objective of this current research is the further development o... Read More about Assessment of landfill settlement data for evaluation of a hydro-bio-mechanical settlement model..

Sustainable landfill: the role of fail-safe engineering for landfill aftercare. (2007)
Presentation / Conference Contribution
Hall, D. H., McDougall, J., Drury, D., Blakey, N., Braithwaite, P., & Rosevear, A. (2007, October). Sustainable landfill: the role of fail-safe engineering for landfill aftercare. Presented at Eleventh International Waste Management and Landfill Symposium,

The route to sustainable landfill while adhering to the Landfill Directive requires that ultimately, the waste site will reach equilibrium status. Chemical equilibrium is part of the requirements, but hydraulic equilibrium must also play a role. The... Read More about Sustainable landfill: the role of fail-safe engineering for landfill aftercare..

Unsaturated hydraulic conductivity of landfilled waste. (2006)
Presentation / Conference Contribution
Kazimoglu, Y. K., McDougall, J., & Pyrah, I. (2006, April). Unsaturated hydraulic conductivity of landfilled waste. Presented at Fourth International Conference on Unsaturated Soils, Carefree, Arizona, USA

Unsaturated flow modelling of landfill hydraulics is a potentially valuable tool for the prediction of leachate discharge rates, design of leachate control systems and simulation of biodegradation in engineered landfills. Such an approach requires in... Read More about Unsaturated hydraulic conductivity of landfilled waste..

Moisture retention and movement in landfilled waste (2005)
Presentation / Conference Contribution
Kazimoglu, Y. K., McDougall, J., & Pyrah, I. (2005, May). Moisture retention and movement in landfilled waste. Presented at International Conference on Problematic Soils, GEOPRPOB 2005

No abstract available.