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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.

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.

Experimental assessment of stiffness and damping in rubber-sand mixtures at various strain levels (2019)
Conference Proceeding
Bernal-Sanchez, J., Mcdougall, J., Barreto, D., Marinelli, A., Dimitriadi, V., Anbazhagan, P., & Miranda, M. (2019). Experimental assessment of stiffness and damping in rubber-sand mixtures at various strain levels. In Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions (1403-1410)

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)
Conference Proceeding
Bernal-Sanchez, J., McDougall, J., Barreto Gonzalez, D., Miranda, M., & Marinelli, A. (2018). Dynamic behaviour of shredded rubber soil mixtures. In Proceedings of the 16th European Conference in Earthquake Engineering

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)
Conference Proceeding
Datta, S., Zekkos, D., Fei, X., & McDougall, J. (2017). Experimental Assessment and Modelling of Coupled Biochemical-Physical-Mechanical Biodegradation Process of a Municipal Solid Waste Sample from Michigan. In Proceedings of the 2nd Symposium on Coupled Phenomena in Environmental Geotechnics (CPEG2), Leeds, UK 2017

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)
Conference Proceeding
Esteban-Altabella, J., McDougall, J., Colomer-Mendoza, F., Gallardo, A., & Edo-Alcon, N. (2017). Review and application of a settlement model for landfills. In International Waste and Landfill Symposium Proceedings

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)
Conference Proceeding
Leung, A., Anastasopoulos, I. X., Augarde, C. E., Barreto, D., Brennan, A. J., Brown, M. J. Z., …Zielinski, M. (2015). An overview of research activities and achievement in Geotechnics from the Scottish Universities Geotechnics Network (SUGN). In Geotechnical Engineering for Infrastructure and Development: XVI European Conference on Soil Mechanics and Geotechnical Engineering (4289-4294)

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).

Settlement-The Short and the Long of it (2011)
Conference Proceeding
McDougall, J. (2011). Settlement-The Short and the Long of it. In D. Zekkos (Ed.), Geotechnical Characterization, Field Measurement, and Laboratory Testing of Municipal Solid Waste (76-111). https://doi.org/10.1061/41146%28395%293

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)
Conference Proceeding
McDougall, J. (2009). Waste heterogeneity: an obstacle to models?. In Sardinia 2009, 12th International Waste Management and Landfill Symposium

No abstract available.

Geomechanics and Long-Term Landfill Settlement (2008)
Conference Proceeding
McDougall, J. (2008). Geomechanics and Long-Term Landfill Settlement. In GeoCongress 2008: Geotechnics of Waste Management and Remediation Proceedings of sessions of GeoCongress 2008 (482-490). https://doi.org/10.1061/40970%28309%2924

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.

Sustainable landfill: the role of fail-safe engineering for landfill aftercare. (2007)
Conference Proceeding
Hall, D. H., McDougall, J., Drury, D., Blakey, N., Braithwaite, P., & Rosevear, A. (2007). Sustainable landfill: the role of fail-safe engineering for landfill aftercare.

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..

Assessment of landfill settlement data for evaluation of a hydro-bio-mechanical settlement model. (2007)
Conference Proceeding
Needham, A., Jones, D. R. V., McDougall, J., Dixon, N., Braithwaite, P., & Rosevear, A. (2007). Assessment of landfill settlement data for evaluation of a hydro-bio-mechanical settlement model.

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..

Unsaturated hydraulic conductivity of landfilled waste. (2006)
Conference Proceeding
Kazimoglu, Y. K., McDougall, J., & Pyrah, I. (2006). Unsaturated hydraulic conductivity of landfilled waste. . https://doi.org/10.1061/40802%28189%29127

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)
Conference Proceeding
Kazimoglu, Y. K., McDougall, J., & Pyrah, I. (2005). Moisture retention and movement in landfilled waste. In Proceedings of the International Conference on Problematic Soils: GEOPRPOB 2005 (307-314)

No abstract available.

Moisture retention curve in landfilled waste. (2003)
Conference Proceeding
Kazimoglu, Y. K., McDougall, J., & Pyrah, I. (2003). Moisture retention curve in landfilled waste. In Unsaturated Soils: Experimental Studies (59-67). https://doi.org/10.1007/3-540-26736-0_5

Moisture content and moisture movement are key factors in controlling the progress and rate of biodegradation within a landfill as it is the aqueous environment that facilitates the transport of nutrients and microbes. The modelling of infiltration a... Read More about Moisture retention curve in landfilled waste..