Professor Hywel Thomas

Professor of Civil Engineering and Director of the Geoenvironmental Research Centre

: ThomasHR@cardiff.ac.uk
: Queen's Buildings - South Building, Room Room S/0.48, 5 The Parade, Newport Road, Cardiff, CF24 3AA

Professor Hywel R. Thomas CBE, FREng, FRS, FLSW, MAE.

Professor Hywel Thomas is Professor of Civil Engineering; the founder Director of the Geoenvironmental Research Centre (GRC) at the University and a UNESCO Professor in the Development of a Sustainable Geoenvironment.

His research interests lie in the area of “Coupled Processes in the Ground”. His work has covered a wide range of geoenvironmental issues, from coupled multiphysics/geochemistry flow problems in soils and rocks, to waste disposal, including nuclear waste. Other subjects of interest include land regeneration and sustainability issues in general. Current interests are focused on the geoenergy field, with major projects on ground source heat, underground coal gasification, exploitation of unconventional gas and carbon sequestration in coal seams. He has worked extensively with the UN agencies, UNIDO (United Nations Industrial Development Organisation, UNESCO and the IAEA (International Atomic Energy Agency).

In 2013, the Geoenvironmental Research Centre was awarded the Queens Anniversary Prize for Higher and Further Education, “In recognition of geoenvironmental solutions to major challenges of land, ground water quality and regeneration.”

His academic achievements have been recognised by election as a Fellow of the Royal Society (FRS) in 2012, a Fellow of the Royal Academy of Engineering (FREng) in 2003, a Member of Academia Europaea, the Academy of Europe (MAE) in 2012 and a Fellow of the Learned Society of Wales (FLSW) in 2011. He was recently made an Honorary Professor at Zhejiang University, China.

He was the Director of the School of Engineering at Cardiff University for the 8 year period 2002 to 2010. He was subsequently a Pro-Vice Chancellor of the University for a further 8 year period from 2010 to 2018. During this time he initially covered the Innovation, International and Engagement portfolios before taking on the role of Pro Vice-Chancellor for Research, Innovation and Engagement, from 2013 to 2018.

In 2017 he received a CBE in the New Year’s Honours List for “Services to Academic Research and Higher Education”.

Date
Type

2023

Xie, H., Yu, M., Yan, H., Thomas, H. R., Chen, Y. and Chen, Y. 2023. Analytical model for the design of permeable reactive barriers considering solute transport in a dual-domain system. Journal of Environmental Engineering 149(9), article number: 7159. (10.1061/JOEEDU.EEENG-7159)
Almolliyeh, M., Tripathy, S., Sadasivam, S., Masum, S., Rassner, S. E., Mitchell, A. and Thomas, H. R. 2023. Subcritical CO2 adsorption on geomaterials of coal-bearing strata in the context of geological carbon sequestration. International Journal of Coal Geology 277, article number: 104340. (10.1016/j.coal.2023.104340)
Wiatowski, M., Kapusta, K., Stańczyk, K., Szyja, M., Masum, S., Sadasivam, S. and Thomas, H. R. 2023. Large-scale ex situ tests for CO 2 storage in coal beds. Energies 16(17), article number: 6326. (10.3390/en16176326)
Gao, W., Masum, S., Qadrdan, M. and Thomas, H. R. 2023. A numerical study on performance efficiency of a low-temperature horizontal ground-source heat pump system. Energy and Buildings 291, article number: 113137. (10.1016/j.enbuild.2023.113137)
Wetzel, M. et al. 2023. Hydromechanical impacts of CO2 storage in coal seams of the Upper Silesian Coal Basin (Poland). Energies 16(7), article number: 3279. (10.3390/en16073279)
Irfan, M., Buckley, K., Cheung, S. Y., Lewis, J., Koj, A. and Thomas, H. 2023. Mapping social capital across Wales (UK) using secondary data and spatial analysis. SN Social Sciences 3, article number: 56. (10.1007/s43545-023-00639-1)
Xie, H., Wu, J., Thomas, H. R., Cai, P., Yan, H. and Chen, Y. 2023. An analytical model for contaminant transport in landfill liner with fluctuating leachate head. International Journal for Numerical and Analytical Methods in Geomechanics 47(3), pp. 482-495. (10.1002/nag.3478)
Almolliyeh, M., Tripathy, S., Sadasivam, S., Masum, S. and Thomas, H. R. 2023. Effect of physical nature (intact and powder) of coal on CO2 adsorption at the subcritical pressure range (up to 6.4 MPa at 298.15 K). ACS Omega 8(7), pp. 7070-7084. (10.1021/acsomega.2c07940)
Chen, M., Masum, S. A., Sadasivam, S., Thomas, H. R. and Mitchell, A. C. 2023. Modeling gas adsorption-desorption hysteresis in energetically heterogeneous coal and shale. Energy and Fuels 37(3), pp. 2149-2163. (10.1021/acs.energyfuels.2c03441)
Masum, S. A., Sadasivam, S., Chen, M. and Thomas, H. R. 2023. Low subcritical co2 adsorption-desorption behavior of intact bituminous coal cores extracted from a shallow coal seam. Langmuir 39(4), pp. 1548-1561. (10.1021/acs.langmuir.2c02971)
Chen, M., Masum, S. A. and Thomas, H. R. 2023. Three-dimensional cleat scale modelling of gas transport processes in deformable fractured coal reservoirs. Gas Science and Engineering 110, article number: 204901. (10.1016/j.jgsce.2023.204901)

2019

Wang, X., Zhou, J., Jiang, C., Wang, J., Gui, K. and Thomas, H. R. 2019. Precursor and dispersion effects of active species on the activity of Mn-Ce-Ti catalysts for NO abatement. Korean Journal of Chemical Engineering 36(12), pp. 1991-1999. (10.1007/s11814-019-0410-z)
Irfan, M., Houdayer, B., Shah, H., Koj, A. and Thomas, H. 2019. GIS-based investigation of historic landfill sites in the coastal zones of Wales (UK). Euro-Mediterranean Journal for Environmental Integration 4(1), article number: 26. (10.1007/s41207-019-0116-y)
Zagorscak, R. and Thomas, H. R. 2019. Dynamic transport and reaction behaviour of high-pressure gases in high-rank coal. Journal of Natural Gas Science and Engineering 71, article number: 102978. (10.1016/j.jngse.2019.102978)
Wang, X., Jiang, C., Wang, J., Gui, K. and Thomas, H. R. 2019. Promoted dispersion and uniformity of active species on Fe-Ce-Al catalysts for efficient NO abatement. RSC Advances 9(61), pp. 35751-35759. (10.1039/C9RA06875A)
Yan, H., Wu, J., Xie, H., Thomas, H. R. and Feng, S. 2019. An analytical model for chemical diffusion in layered contaminated sediment systems with bioreactive caps. International Journal for Numerical and Analytical Methods in Geomechanics 43(15), pp. 2471-2490. (10.1002/nag.2992)
Detheridge, A., Hosking, L., Thomas, H., Sarhosis, V., Gwynn-Jones, D. and Scullion, J. 2019. Deep seam and minesoil carbon sequestration potential of the South Wales Coalfield, UK. Journal of Environmental Management 248, article number: 109325. (10.1016/j.jenvman.2019.109325)
Zagorscak, R. and Thomas, H. R. 2019. High-pressure CO2 excess sorption measurements on powdered and core samples of high-rank coals from different depths and locations of the South Wales Coalfield. Energy and Fuels 33(7), pp. 6515-6526. (10.1021/acs.energyfuels.9b00381)
Sadasivam, S., Thomas, H., Zagorscak, R., Davis, T. and Price, N. 2019. Baseline geochemical study of the Aberpergwm mining site in the South Wales Coalfield. Journal of Geochemical Exploration 202, pp. 100-112. (10.1016/j.gexplo.2019.03.006)
Zagorščak, R., An, N., Palange, R., Green, M., Krishnan, M. and Thomas, H. R. 2019. Underground coal gasification - A numerical approach to study the formation of syngas and its reactive transport in the surrounding strata. Fuel 253, pp. 349-360. (10.1016/j.fuel.2019.04.164)
Chen, M., Hosking, L. J., Sandford, R. J. and Thomas, H. R. 2019. Dual porosity modelling of the coupled mechanical response of coal to gas flow and adsorption. International Journal of Coal Geology 205, pp. 115-125. (10.1016/j.coal.2019.01.009)

2018

Masum, S. A. and Thomas, H. R. 2018. Modelling the effects of pH on subsurface microbial growth processes. Presented at: 21st Australasian Fluid Mechanics Conference, Adelaide, SA, Australia, 10-13 December 2018Proceedings of the 21st Australasian Fluid Mechanics Conference. Australasian Fluid Mechanics Society
Zagorscak, R. and Thomas, H. R. 2018. Effects of subcritical and supercritical CO2 sorption on deformation and failure of high-rank coals. International Journal of Coal Geology 199, pp. 113-123. (10.1016/j.coal.2018.10.002)
Sedighi, M., Thomas, H. R. and Vardon, P. J. 2018. Reactive transport of chemicals in compacted bentonite under nonisothermal water infiltration. Journal of Geotechnical and Geoenvironmental Engineering 144(10), article number: 4018075. (10.1061/(ASCE)GT.1943-5606.0001955)
Irfan, M., Shah, H., Koj, A. and Thomas, H. 2018. Finding space to grow urban hedges as a natural air filter along pedestrian paths: a GIS‑based investigation of a UK urban centre. Euro-Mediterranean Journal for Environmental Integration (2018) 3:40 3(1), pp. 40-49. (10.1007/s41207-018-0082-9)
Sarhosis, V., Hosking, L. and Thomas, H. R. 2018. Carbon sequestration potential of the South Wales Coalfield. Environmental Geotechnics 5(4), pp. 234-246. (10.1680/jenge.16.00007)
Chen, X., Wang, M., Hicks, M. A. and Thomas, H. R. 2018. A new matrix for multiphase couplings in a membrane porous medium. International Journal for Numerical and Analytical Methods in Geomechanics 42(10), pp. 1144-1153. (10.1002/nag.2783)
Hosking, L. J. ., Thomas, H. R. and Sedighi, M. 2018. A dual porosity model of high pressure gas flow for geoenergy applications. Canadian Geotechnical Journal 55(6), pp. 839-851. (10.1139/cgj-2016-0532)
Masum, S. A. and Thomas, H. R. 2018. Modelling coupled microbial processes in the subsurface: model development, verification, evaluation and application. Advances in Water Resources 116, pp. 1-17. (10.1016/j.advwatres.2018.03.015)
Sedighi, M., Hepburn, B. D. P., Thomas, H. R. and Vardon, P. J. 2018. Energy balance at the soil atmospheric interface. Environmental Geotechnics 5(3) (10.1680/jenge.15.00054)
Hosking, L. J. and Thomas, H. R. 2018. An investigation of the pseudo-steady state aproach to modelling inter-porosity flow in fractured geomaterials. Presented at: 4th GeoShanghai International Conference, Shanghai, China, 27-30 May 2018 Presented at Zhang, L., Goncalves da Silva, B. and Zhao, C. eds.Rock Mechanics and Rock Engineering, Vol. 3. Proceedings of GeoShanghai 2018 International Conference Singapore: Springer pp. 30-38., (10.1007/978-981-13-0113-1_4)
Zagorscak, R. and Thomas, H. 2018. Effect of sorption induced swelling on gas transport in coal. Presented at: GeoShanghai International Conference 2018, Shanghai, China, 27-30 May 2018Proceedings of GeoShanghai 2018 International Conference: Geoenvironment and Geohazard. Springer pp. 386-394., (10.1007/978-981-13-0128-5_43)

2017

Irfan, M., Koj, A., Sedighi, M. and Thomas, H. 2017. Design and development of a generic spatial decision support system, based on artificial intelligence and multicriteria decision analysis. GeoResJ 14, pp. 47-58. (10.1016/j.grj.2017.08.003)
Tripathy, S., Thomas, H. R. and Stratos, P. 2017. Response of compacted bentonites to thermal and thermo-hydraulic loadings at high temperatures. Geosciences 7(3), article number: 53. (10.3390/geosciences7030053)
Sarhosis, V., Lavis, S., Mostade, M. and Thomas, H. 2017. Towards commercialising underground coal gasification in the EU. Environmental Geotechnics 4(2), pp. 113-122. (10.1680/jenge.15.00044)
Pandey, N., Murugesan, K. and Thomas, H. R. 2017. Optimization of ground heat exchangers for space heating and cooling applications using Taguchi method and utility concept. Applied Energy 190, pp. 421-438. (10.1016/j.apenergy.2016.12.154)
Zagorscak, R., Sedighi, M. and Thomas, H. R. 2017. Effects of thermo-osmosis on hydraulic behaviour of saturated clays. International Journal of Geomechanics 17(3), article number: 4016068. (10.1061/(ASCE)GM.1943-5622.0000742)
Tripathy, S., Thomas, H. R. and Bag, R. 2017. Geoenvironmental application of bentonites in underground disposal of nuclear waste: characterization and laboratory tests. Journal of Hazardous, Toxic, and Radioactive Waste 21(1), article number: D4015002. (10.1061/(ASCE)HZ.2153-5515.0000272)

2016

Xie, H., Yan, H., Thomas, H. R., Feng, S., Ran, Q. and Chen, P. 2016. An analytical model for vapor-phase volatile organic compound diffusion through landfill composite covers. International Journal for Numerical and Analytical Methods in Geomechanics 40(13), pp. 1827-1843. (10.1002/nag.2514)
Sarhosis, V., Jaya, A. and Thomas, H. R. 2016. Economic modelling for coal bed methane production and electricity generation from deep virgin coal seams. Energy 107 (10.1016/j.energy.2016.04.056)
Farr, G., Sadasivam, S., Manju, ., Watson, I. A., Thomas, H. R. and Tucker, D. 2016. Low enthalpy heat recovery potential from coal mine discharges in the South Wales coalfield. International Journal of Coal Geology 164, pp. 92-103. (10.1016/j.coal.2016.05.008)
Zagorscak, R. and Thomas, H. R. 2016. A review on performance of energy piles and effects on surrounding ground. Inzenjerstvo Okolisa (Environmental Engineering) 3(1), pp. 33-45.
Sadasivam, S. and Thomas, H. R. 2016. Colour and toxic characteristics of metakaolinite-hematite pigment for integrally coloured concrete, prepared from iron oxide recovered from a water treatment plant of an abandoned coal mine. Journal of Solid State Chemistry 239, pp. 246-250. (10.1016/j.jssc.2016.05.003)
Hepburn, B. D. P., Sedighi, M., Thomas, H. R. and Manju, . 2016. Field-scale monitoring of a horizontal ground source heat system. Geothermics 61, pp. 86-103. (10.1016/j.geothermics.2016.01.012)
Irfan, M., Koj, A., Thomas, H. and Sedighi, M. 2016. Geographical General Regression Neural Network (GGRNN) tool for geographically weighted regression analysis. Presented at: The Eighth International Conference on Advanced Geographic Information Systems, Applications, and Services, Venice, Italy, April 24- April 28 2016GEOProcessing 2016, The Eighth International Conference on Advanced Geographic Information Systems, Applications, and Services. pp. 154-159.
Hosking, L. and Thomas, H. R. 2016. An investigation of different borehole layouts for carbon sequestration in coalbeds. Presented at: 24th Conference of the Association for Computational Mechanics in Engineering, Cardiff, UK, 31 March - 1 April 2016ACME-UK 2016: 24th Conference on Computational Mechanics 31 Mar- 1 Apr 2016 Cardiff: Proceedingsf. Cardiff: Cardiff University pp. 154-157.
Wang, M., Hosking, L., Masum, S. and Thomas, H. R. 2016. Development of a high performance computing approach for studying the coupled behaviour of porous media. Presented at: 24th Conference of the Association for Computational Mechanics in Engineering, Cardiff, UK, 31 March - 1 April 2016ACME-UK 2016: 24th Conference on Computational Mechanics 31 Mar- 1 Apr 2016 Cardiff: Proceedingsf. Cardiff: Cardiff University pp. 318-321.
Sedighi, M., Thomas, H. R. and Vardon, P. J. 2016. Reactive transport of chemicals in unsaturated soils: numerical model development and verification. Canadian Geotechnical Journal 53(1), pp. 162-172. (10.1139/cgj-2014-0436)
Zagorscak, R. and Thomas, H. R. 2016. Thermo-osmosis in saturated shale. Presented at: 24th UK Conference of the Association for Computational Mechanics in Engineering, Cardiff University, Cardiff, UK, 31 March - 1 April 2016ACME-UK: 2016 24th Conference on Computational Mechanics. Cardiff: Cardiff University/ACME pp. 322-325.
Zagorscak, R. and Thomas, H. R. 2016. Experimental study of the Klinkenberg effect on gas permeability of coal. Presented at: 12th International Conference on Diffusion in Solids and Liquids (DSL2016), Split, Croatia, 26-30 June 2016.

2015

Xie, H., Chen, Y., Thomas, H. R., Sedighi, M., Masum, S. A. and Ran, Q. 2015. Contaminant transport in the sub-surface soil of an uncontrolled landfill site in China: site investigation and two-dimensional numerical analysis. Environmental Science and Pollution Research 23(3), pp. 2566-2575. (10.1007/s11356-015-5504-5)
Xie, H., Zhang, C., Sedighi, M., Thomas, H. R. and Chen, Y. 2015. An analytical model for diffusion of chemicals under thermal effects in semi-infinite porous media. Computers and Geotechnics 69, pp. 329-337.
Xie, H., Thomas, H. R., Chen, Y., Sedighi, M., Zhan, T. L. and Tang, X. 2015. Diffusion of organic contaminants in triple-layer composite liners: an analytical modeling approach. Acta Geotechnica 10(2), pp. 255-262. (10.1007/s11440-013-0262-3)
Bennett, D., Cuss, R. J., Vardon, P. J., Harrington, J. F., Sedighi, M. and Thomas, H. R. 2015. Exploratory data analysis of the Large Scale Gas Injection Test (Lasgit) dataset, focusing on 'second-order' events around macro-scale gas flows. Geological Society, London, Special Publications 415, pp. 225-239. (10.1144/SP415.14)
Tripathy, S., Bag, R. and Thomas, H. R. 2015. Enhanced isothermal effect on swelling pressure of compacted MX80 bentonite. In: Lollino, G. et al. eds. Engineering Geology for Society and Territory: Volume 6., Vol. 6. Springer, pp. 537-539., (10.1007/978-3-319-09060-3_96)
Sedighi, M., Thomas, H. R., Masum, S. A., Vardon, P. J., Nicholson, D. and Chen, Q. 2015. Geochemical modelling of hydrogen gas migration in an unsaturated bentonite buffer. Geological Society Special Publications 415, pp. 189-201. (10.1144/SP415.12)
Thomas, H. R. and Sedighi, M. 2015. Thermal effects on chemical diffusion in multicomponent ionic systems. In: Lollino, G. et al. eds. Engineering Geology for Society and Territory - Volume 6: Applied Geology for Major Engineering Projects. Springer International Publisher, pp. 525-528., (10.1007/978-3-319-09060-3_93)
Sarhosis, V., Jaya, A. A., Hosking, L., Koj, A. and Thomas, H. R. 2015. Techno-economics for coalbed methane production in the South Wales coalfield. Presented at: Clean Coal Technology Conference (CCT2015), Krakow, Poland, 17-21 May 2015.
Piotr, M., Sarhosis, V., Krishnan, M., Thomas, H. R. and Krzysztof, S. 2015. Effect of gasification parameters on product gas characteristics of South Wales coal. Presented at: Clean Coal Technology Conference (CCT2015), Krakow, 17-21 May 2015.
Hosking, L., Thomas, H., Sarhosis, V., Neil, P. and Koj, A. 2015. Assessment of reservoir conditions and engineering factors influencing coal bed methane recovery in the South Wales Coalfield. Presented at: 15th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, Buenos Aires, Argentina, 15-18 November 2015 Presented at Manzanal, D. and Sfriso, A. O. eds.Proceedings of the 15th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, 15–18 November 2015, Buenos Aires, Argentina. IOS Press pp. 761-768., (10.3233/978-1-61499-603-3-761)

2014

Tripathy, S., Bag, R. and Thomas, H. R. 2014. Effect of Stern-layer on the compressibility behaviour of bentonites. Acta Geotechnica 9(6), pp. 1097-1109. (10.1007/s11440-013-0222-y)
Sedighi, M. and Thomas, H. R. 2014. Micro porosity evolution in compacted swelling clays - A chemical approach. Applied Clay Science 101, pp. 608-618. (10.1016/j.clay.2014.09.027)
Tripathy, S., Tadza, M. Y. M. and Thomas, H. R. 2014. Soil-water characteristic curves of clays. Canadian Geotechnical Journal 51(8), pp. 869-883. (10.1139/cgj-2013-0089)
Tripathy, S., Bag, R. and Thomas, H. R. 2014. Effects of post-compaction residual lateral stress and electrolyte concentration on swelling pressures of a compacted bentonite. Geotechnical and Geological Engineering 32(4), pp. 749-763. (10.1007/s10706-014-9754-7)
Xie, H., Sedighi, M., Thomas, H. R. and Chen, Y. 2014. Non-isothermal diffusion of chemicals in semi-infinite porous media. Presented at: 3rd International Conference on Computational Methods for Thermal problems, Lake Bled, Slovenia, 2-4 June 2014.
Thomas, H. R., Vardon, P. J. and Cleall, P. J. 2014. Three-dimensional behaviour of a prototype radioactive waste repository in fractured granitic rock. Canadian Geotechnical Journal 51(3), pp. 246-259. (10.1139/cgj-2013-0094)
Sivasakthivel, T., Murugesan, K. and Thomas, H. R. 2014. Optimization of operating parameters of ground source heat pump system for space heating and cooling by Taguchi method and utility concept. Applied Energy 116, pp. 76-85. (10.1016/j.apenergy.2013.10.065)
Bennett, D., Cuss, R. J., Vardon, P. J., Harrington, J. F. and Thomas, H. R. 2014. Phenomena exposure from the large scale gas injection test (Lasgit) dataset using a bespoke data analysis toolkit. Geological Society Special Publication 400(1), pp. 497-505. (10.1144/SP400.5)
Vardon, P. J., Nicholson, D., Chen, Q., Masum, S. A. and Thomas, H. R. 2014. Simulation of repository gas migration in a bentonite buffer. Proceedings of the Institution of Civil Engineers Engineering and Computational Mechanics 167(1), pp. 13-22. (10.1680/eacm.12.00018)
Irfan, M., Koj, A., Sedighi, M. and Thomas, H. 2014. GIS based site ranking using neighbourhood analysis and comparison. ThinkMind, pp. 51-57.
Thomas, H. R. and Sedighi, M. 2014. Computational modelling of coupled processes in ground energy problems. Presented at: Third International Conference on Computational Methods for Thermal Problems, Lake Bled, Slovania, 2-4 June 2014.
Sedighi, M., Bennett, D., Masum, S. A., Thomas, H. and Erik, J. 2014. Analysis of temperature data at the Olkiluoto [working report]. Posiva Oy. Available at: https://inis.iaea.org/collection/NCLCollectionStore/_Public/45/107/45107617.pdf
Sedighi, M., Masum, S. A., Thomas, H. and Bennett, D. 2014. Rock thermal behaviour - Analysis of data from a monitoring programme. Presented at: Third international conference on computational methods for thermal problems, Lake Bled, Slovenia, 2-4 June 2014.
Sedighi, M., Bennett, D., Masum, S. A., Thomas, H., Erik, J. and Topias, S. 2014. Temperature data analysis from fields scale thermal monitoring. Presented at: 22nd UK national conference of the Association for Computational Mechanics in Engineering, Exeter, UK, 2-4 April 2014.
Tripathy, S., Elgabu, H. and Thomas, H. 2014. Soil-water characteristic curves from various laboratory techniques. Presented at: International Conference on Unsaturated Soils, Sydney, 2 - 4 July 2014 Presented at Khalili, N., Russell, A. R. and Khoshghalb, A. eds.Unsaturated Soils: Research and Applications. CRC Press pp. 1701-1707., (10.1201/b17034-248)

2013

Hosking, L., Sedighi, M. and Thomas, H. R. 2013. High pressure gas transport under coupled thermal, hydraulic, chemical and mechanical behaviour. Presented at: 3rd International Symposium on Computational Geomechanics (ComGeo III), Krakow, Poland, 21-23 August 2013Proceedings of the 3rd International Symposium on Computational Geomechanics, Krakow, Poland, 21-23 August, 2013. pp. 381-388.
Sedighi, M., Thomas, H. R., Xie, H., Chen, Y. M. and Guan, C. 2013. A case study of contaminant transport and fate at a landfill site in China. Presented at: International Symposium on Coupled Phenomena in Environmental Geotechnics (ISSMGE TC 215), Torino, Italy, 1-3 July 2013 Presented at Manassero, M. et al. eds.Coupled Phenomena in Environmental Geotechnics. Boca Raton, FL: CRC Press pp. 625-630.
Cleall, P. J., Singh, R. M. and Thomas, H. R. 2013. Vapour transfer in unsaturated compacted bentonite. Géotechnique 63(11), pp. 957-964. (10.1680/geot.12.P.147)
Thomas, H. R., Sedighi, M., Al-Masum, S., Vardon, P. J., Nicolson, D. and Chen, A. 2013. Gas-flow/geochemistry interactions in unsaturated bentonite buffer. Presented at: Fate of repository gases project; Gas generation and migration international symposium and workshop, Luxembourg, 5-7 February 2013.
Bennett, D., Cuss, R., Vardon, P., Harrington, J., Sedighi, M., Shaw, R. and Thomas, H. 2013. 'Second Order' exploratory data analysis of the large scale gas injection test (Lasgit) dataset, focused around known gas migration events. Presented at: Gas Generation and Migration International Symposium and Workshop, Luxembourg, 5-7 February 2013.

2012

Bennett, D., Cuss, R., Vardon, P. J., Harrington, J. F., Philp, R. and Thomas, H. R. 2012. Data analysis toolkit for long-term, large-scale experiments. Mineralogical Magazine 76(8), pp. 3355-3364. (10.1180/minmag.2012.076.8.48)
Masum, S., Vardon, P. J., Thomas, H. R., Chen, Q. and Nicholson, D. 2012. Multicomponent gas flow through compacted clay buffer in a higher activity radioactive waste geological disposal facility. Mineralogical Magazine 76(8), pp. 3337-3344. (10.1180/minmag.2012.076.8.46)
Koj, A., Irfan, M., Sedighi, M. and Thomas, H. 2012. A I.T. based approach to assessing some of the issues linked to problematic soils. Presented at: 4th International Conference on Problematic Soils (PS12), Wuhan, China, 21-23 September 20124th International Conference on Problematic Soils. Problematic Soils Vol. 4. Wuhan, China: Ci-Premier PTE Ltd pp. 143-151.
Thomas, H. R. and Sedighi, M. 2012. Modelling the engineering behaviour of highly swelling clays. Presented at: 4th International Conference on Problematic Soils, Wuhan, China, 21-23 September 2012.
Sedighi, M., Thomas, H. R. and Vardon, P. J. 2012. On the reactive transport of chemicals in unsaturated expansive soils. Presented at: 4th International Conference on Problematic Soils, Wuhan, China, 21-23 September 2012.
Thomas, H. R., Sedighi, M. and Vardon, P. J. 2012. Diffusive reactive transport of multicomponent chemicals under coupled thermal, hydraulic, chemical and mechanical conditions. Journal of Geotechnical and Geological Engineering 30(4), pp. 841-857. (10.1007/s10706-012-9502-9)
Tripathy, S., Elgabu, H. and Thomas, H. R. 2012. Matric suction measurement of unsaturated soils with null-type axis-translation technique. Geotechnical Testing Journal 35(1), article number: GTJ103591. (10.1520/GTJ103591)
Hadi Mosleh, M., Thomas, H. R., Turner, M., Vardon, P. J., Sedighi, M. and Tripathy, S. 2012. Gas transport and reaction processes in problematic soils. Presented at: 4th International Conference on Problematic Soils (PS12), Wuhan, China, 21-23 September 2012 Presented at Kong, L. W. ed.Proceedings of the 4th International Conference on Problematic Soils. Singapore: Chinese Academy of Sciences pp. 227-233.
Bennett, C., Tripathy, S. and Thomas, H. R. 2012. Wetting characteristics of compacted bentonites at large applied suctions. In: Mancuso, C., Jommi, C. and D'Onza, F. eds. Unsaturated Soils: Research and Applications., Vol. 1. Heidelberg: Springer-Verlag, pp. 229-234., (10.1007/978-3-642-31116-1_31)

2011

Cleall, P. J., Singh, R. M. and Thomas, H. R. 2011. Non-isothermal moisture movement in unsaturated kaolin: An experimental and theoretical investigation. Geotechnical Testing Journal 34(5), article number: GTJ103585. (10.1520/GTJ103585)
Tripathy, S., Mohd Tadza, M. Y. and Thomas, H. R. 2011. On the intrusion of polyethylene glycol during osmotic tests. Géotechnique Letters 1(3), pp. 47-51. (10.1680/geolett.11.00016)
Sedighi, M., Thomas, H. R. and Vardon, P. J. 2011. Modelling thermal impacts on reactive transport processes related to multicomponent chemicals in compacted clays. Presented at: ComGeo2: 2nd International Symposium on Computational Geomechanics, Dubrovnic, Cavtat-Dubrovnik, Croatia, 27-29 April 2011 Presented at Pande, G. N. and Pietruszczak, S. eds.Proceedings of the 2nd International Symposium on Computational Geomechanics (ComGeo II). Cavtat-Dubrovnik: ComGeo pp. 538-546.
Vardon, P. J., Cleall, P. J. and Thomas, H. R. 2011. Three-dimensional modelling of the Thermo-Hydro-Mechanical behaviour of a prototype repository. Presented at: 6th International Congress on Environmental Geotechnics (6ICEG), New Delhi, India, 8-12 November 2010 Presented at Datta, M. ed.Proceedings of the 6th International Congress on Environmental Geotechnics, 8-12 November 2010, New Delhi, India, Vol. 2. New Delhi: McGraw Hill pp. 1646-1649.
Seetharam, S. C., Thomas, H. R. and Vardon, P. J. 2011. Nonisothermal multicomponent reactive transport model for unsaturated soil. International Journal of Geomechanics 11(2), pp. 84-90. (10.1061/(ASCE)GM.1943-5622.0000018)
Mahdi, T., Francis, R. W., Thomas, H. and Zheng, G. 2011. Evaluating remediation options for contaminated canal sediments. Presented at: International Conference of the British Land Reclamation Society, University of Glamorgan, UK, 7-9 September 2010 Presented at Fox, H. R. and Moore, H. M. eds.Restoration and Recovery: Regenerating land and communities. Whittles pp. 81-91.
Vardon, P. J., Cleall, P. J., Thomas, H. R., Philp, R. and Banicescu, I. 2011. Three-dimensional field-scale coupled Thermo-Hydro-Mechanical modelling: parallel computing implementation. International Journal of Geomechanics 11(2), pp. 90-98. (10.1061/(ASCE)GM.1943-5622.0000019)

2010

Vardon, P. J. and Thomas, H. R. 2010. Recent developments modelling THCM behaviour of geoenvironmental problems. Presented at: GeoShanghai 2010, Shanghai, China, 3-5 June 2010 Presented at He, Q. and Shen, J. S. eds.Geoenvironmental Engineering and Geotechnics. Geotechnical Special Publication Vol. 204. Reston, VA: American Society of Civil Engineers pp. 153-158., (10.1061/41105(378)22)
Thomas, H. R., Seetharam, S. . C. and Vardon, P. J. 2010. On the inclusion of some biological impacts and influences in coupled transport phenomena in unsaturated soil. Geotechnical and Geological Engineering 29(2), pp. 181-191. (10.1007/s10706-010-9316-6)
Cleall, P. J., Thomas, H. R., Li, Y. C., Harris, C. and Kern-Luetschg, M. 2010. Experimental and numerical modelling of soils subjected to seasonal freezing and thawing. Presented at: 6th International Congress on Environmental Geotechnics (6ICEG), New Delhi, India, 8-12 November 2010 Presented at Datta, M. ed.Proceedings of the 6th International Congress on Environmental Geotechnics, New Delhi, India, Vol. 2. Tata McGraw Hill pp. 1691-1694.
Singh, R. M., Thomas, H. R. and Cleall, P. J. 2010. Heat and mass migration in MX-80 Bentonite subject to thermo-hydraulic gradient. Presented at: 6th International Congress on Environmental Geotechnics (6ICEG), New Delhi, India, 8-12 November 2010 Presented at Datta, M. ed.Proceedings of the 6th International Congress on Environmental Geotechnics (6ICEG) November 8 - 12 2010 (New Delhi, India), Vol. 2. McGraw Hill pp. 1646-1649.
Tripathy, S., Bag, R. and Thomas, H. R. 2010. Desorption and consolidation behaviour of initially saturated clays. Presented at: Proceedings of 5th International Conference on Unsaturated Soils, Barcelona, Spain Presented at E., A. E. and Gens, A. eds. Taylor & Francis pp. 381-386.
Sedighi, M., Thomas, H., Vardon, P. J. and Seetharam, S. C. 2010. Advances in modelling the non-isothermal behaviour of multicomponent chemicals in unsaturated soils. Presented at: 6th International Congress on Environmental Geotechnics (6ICEG), New Delhi, India, 8-12 November 2010Proceedings of the 6th International Congress of Environmental Geotechnics (6ICEG),. Tata McGraw Hill Education pp. 1619-1622.
Masum, S. A., Vardon, P. J., Thomas, H. R., Chen, Q. and Nicholson, D. 2010. Initial investigation of gas pressure development at post closure stage of an underground disposal facility. Presented at: 6th International Congress of Environmental Geotechnics, New Delhi, India, 8-12 November 2010Proceedings of 6th International Congress of Environmental Geotechnics (6ICEG). New Delhi, India: McGraw Hill pp. 1735-1738.

2009

Thomas, H. R., Cleall, P. J., Dixon, D. and Mitchell, H. P. 2009. The coupled thermal-hydraulic-mechanical behaviour of a large scale in-situ heating experiment. Géotechnique 59(4), pp. 401-413. (10.1680/geot.2009.59.4.401)
Thomas, H. R. and Rees, S. W. 2009. Measured and simulated heat transfer to foundation soils. Géotechnique 59(4), pp. 365-375. (10.1680/geot.2008.59.4.365)
Thomas, H. R., Cleall, P. J., Li, Y., Harris, C. and Kern-Luetschg, M. 2009. Modelling of cryogenic processes in permafrost and seasonally frozen soils. Géotechnique 59(3), pp. 173-184. (10.1680/geot.2009.59.3.173)
Thomas, H., Seetharam, S. and Siddiqua, S. 2009. Inclusion of higher-temperature effects in a soil behaviour model. Geotechnique 59(3), pp. 279-282. (10.1680/geot.2009.59.3.279)
Vardon, P. J., Banicescu, I., Cleall, P. J., Thomas, H. R. and Philip, R. N. 2009. Coupled thermo/hydro/chemical/mechanical modelling: a new parallel approach. Presented at: 23rd IEEE International Parallel & Distributed Processing Symposium, Rome, Italy, 25-29 May 2009Proceedings of the International Parallel and distributed Processing Symposium (IPDPS09) (Rome, Italy). Piscataway, NJ, USA: Institute of Electical and Electronic Engineers (IEEE)
Vardon, P. J., Thomas, H. R. and Cleall, P. J. 2009. An investigation of the re-saturation characteristics of the prototype repository. Presented at: First International Symposium on Computational Geomechanics (COMGEO I), Juan-les- Pins, France, 29 April-1 May 2009 Presented at Pietruszczak, S. et al. eds.Computational Geomechanics I (ComGeo I): Abstracts of Papers Presented at the, First International Symposium on Computational Geomechanics (COMGEO I), Juan -les- Pins, France, 29 April - 1 May, 2009.. IC2E International Center for Computational Engineering, pp. 544-552.
Vardon, P. J., Banicescu, I., Cleall, P. J., Thomas, H. R. and Philp, R. 2009. Coupled Thermo-Hydro-Mechanical Modelling: A New Parallel Approach. Presented at: IPDPS 2009 - IEEE International Symposium on Parallel & Distributed Processing 2009, Rome, Italy, 23-29 May 2009 Presented at Mei, A. ed.Proceedings: IPDPS 2009 - 23rd IEEE International Parallel & Distributed Processing Symposium 2009. Los Alamitos, CA: IEEE pp. 2534-2542., (10.1109/IPDPS.2009.5161160)

2008

Vardon, P. J., Cleall, P. J., Thomas, H. R. and Philp, R. 2008. Three-Dimensional Large Scale Coupled Thermo-Hydro-Mechanical Modelling. Presented at: 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG), Goa, India, 1-6 October 2008.
Vardon, P. J., Thomas, H. R. and Cleall, P. J. 2008. Modelling the three-dimensional hydraulic performance of a prototype repository system within fractured crystalline rock. Presented at: 3rd international symposium GeoProc 2008, Lille, France, 2-6 June 2008 Presented at Shao, J. F. and Burlion, N. eds.Thermo-hydromechanical and chemical coupling in geomaterials and applications : proceedings of the 3rd international symposium GeoProc'2008. London: ISTE pp. 517-524.

2007

Rees, S. W., Zhou, Z. and Thomas, H. R. 2007. Ground heat transfer: a numerical simulation of a full-scale experiment. Building and Environment 42(3), pp. 1478-1488. (10.1016/j.buildenv.2005.12.022)
Cleall, P. J., Seetharam, S. C. and Thomas, H. R. 2007. Inclusion of some aspects of chemical behaviour of unsaturated soil in thermo/hydro/chemical/mechanical models. I: Model development. Journal of Engineering Mechanics 133(3), pp. 338-347. (10.1061/(ASCE)0733-9399(2007)133:3(338))
Cleall, P. J., Seetheram, S. C. and Thomas, H. R. 2007. Inclusion of some aspects of chemical behaviour of unsaturated soil in thermo/hydro/chemical/mechanical models. II: Application and transport of soluble salts in compacted bentonite. Journal of Engineering Mechanics 133(3), pp. 348-356. (10.1061/(ASCE)0733-9399(2007)133:3(348))

2006

Rees, S. W., Zhou, Z. M. and Thomas, H. R. 2006. Multidimensional simulation of earth-contact heat transfer. Building Research and Information 34(6), pp. 565-572. (10.1080/09613210600675958)
Rees, S. W., Thomas, H. R. and Zhou, Z. 2006. A numerical and experimental investigation of three-dimensional ground heat transfer. Building Services Engineering Research and Technology 27(3), pp. 195-208.
Cleall, P. J., Melhuish, T. A. and Thomas, H. R. 2006. Modelling the three-dimensional behaviour of a prototype nuclear waste repository. Engineering Geology 85(1-2), pp. 212-220. (10.1016/j.enggeo.2005.09.045)
Seetharam, S. C., Cleall, P. J. and Thomas, H. R. 2006. Modelling some aspects of ion migration in a compacted bentonitic clay. Engineering Geology 85(1-2), pp. 221-228. (10.1016/j.enggeo.2005.09.041)
Cleall, P. J., Thomas, H. R., Melhuish, T. A. and Owen, D. 2006. Use of parallel computing and visualisation techniques in the simulation of large scale geoenvironmental engineering problems. Future generation computer systems 22(4), pp. 460-467. (10.1016/j.future.2005.04.006)
Cleall, P. J., Singh, R. M., Do, N. and Thomas, H. 2006. An experimental study of moisture movement due to thermal and thermo-hydraulic gradients in clays. Presented at: Proceedings of the 5th Intl Congress on Environmental Geotechnics (5th ICEG), Cardiff, UK, Vol. 1. pp. 693-700.
Cleall, P. J., Thomas, H. R. and Glendinning, M. C. 2006. Modelling the behaviour of freezing and thawing soil slopes. Presented at: Proceedings of the 5th Intl Congress on Environmental Geotechnics (5th ICEG), Cardiff, UK, Vol. 2. pp. 1603-1610.
Seetharam, S. C., Cleall, P. J. and Thomas, H. R. 2006. On the inclusion of geochemical effects in coupled processes in soils. Presented at: Proceedings of the 5th Intl Congress on Environmental Geotechnics (5th ICEG), Cardiff, UK, Vol. 1. pp. 781-788.
Thomas, H. R., Cleall, P. J. and Singh, R. M. 2006. Thermal and thermo-hydraulic gradient tests on compacted bentonite: experimental set-up. Technical Report.
Jones, M. J., Cleall, P. J. and Thomas, H. R. 2006. The PUrE software platform: general specification. Project Report.

2005

Thomas, H. R., Cleall, P. J. and Pace, N. A. 2005. CETRAD:Coordination Action on Education and Training in Radiation Protection and Radioactive Waste Management - Final Report. Project Report. [Online]. Brussels: European Commission. Available at: ftp://ftp.cordis.europa.eu/pub/fp6-euratom/docs/cetrad-d3-projrep_en_pdf.zip
Cleall, P. J., Thomas, H. R. and Seetharam, S. C. 2005. Coupled models in geoenvironmental applications. Presented at: 11th International Conference on Computer Methods and Advances in Geomechanics, Turin, Italy Presented at Barla G, B. M. ed., Vol. 4. pp. 275-288.
Thomas, H. R., Cleall, P. J., Seetharam, S. C., Melhuish, T. A. and Tey, C. Y. 2005. Behaviour of engineered barriers - some recent advances. Presented at: International Conference on Problematic Soils (GEOPROB 2005), Famagusta, Cyprus.
Thomas, H. R., Cleall, P. J. and Pace, N. A. 2005. Geological disposal of radioactive waste: review of European education and training: needs and capability. Project Report.

2004

Cleall, P. J., Melhuish, T. A. and Thomas, H. R. 2004. Modelling the three-dimensional behaviour of a prototype nuclear waste repository. Presented at: Proceedings 4th BGA International Geoenvironmental Engineering Conference. Integrated Management of Groundwater and Contaminated Land, Stratford on Avon, UK. pp. 402-409.
Cleall, P. J., Thomas, H. R., Seetharam, S. and Melhuish, T. A. 2004. Thermal-hydraulic-chemical-mechanical (THCM) behaviour of unsaturated soils- applications in the nuclear waste disposal context. Presented at: Proceeding of the 9th International Conference on Numerical Methods in Geomechanics. Numerical Models in Geomechanics, Ottawa, Canada, Vol. IX. Balkema pp. 311-318.
Seetharam, S. C., Cleall, P. J. and Thomas, H. R. 2004. An investigation of the thermo/hydro/chemical/mechanical behaviour of unsaturated soils. Presented at: Proceedings of the 12th ACME Annual Conference, Cardiff, UK.
Seetharam, S. C., Cleall, P. J. and Thomas, H. R. 2004. Modelling the behaviour of soluable salts in a highly compacted bentonitic clay. Presented at: Proceedings. 4th BGA International Geoenvironmental Engineering Conference. Integrated Management of Groundwater and Contaminated Land, Stratford-On-Avon, UK. pp. 466-476.
Tey, C. Y., Cleall, P. J. and Thomas, H. R. 2004. Thermal hydraulic interactions between buffer and rock in a deep geological waste disposal repository. Presented at: Proceedings of the Malaysian Geotechnical Conference, Subang, Malaysia, Vol. 16-18. pp. 619-624.
Thomas, H. R., Cleall, P. J., Chandler, N., Dixon, D. and Mitchell, H. P. 2004. Hydro-mechanical behaviour of unsaturated buffer. Presented at: Proceedings of the International Conference: From Experimentatal Evidence Towards Numerical Modelling of Unsaturated Soils, Weimar, Germany, Vol. 94. Springer Proceedings in Physics pp. 327-340.
Thomas, H. R., Cleall, P. J., Melhuish, T. A. and Seetharam, S. C. 2004. Modelling the thermal-hydraulic-chemical -mechanical (THCM) behavious of bentonite buffers. Presented at: Proceedings from Task Force Related Meeting on Buffer and Backfill Modelling (SKB International Progress Report), Lund, Sweden, Vol. IPR-04. pp. 63-72.
Seetharam, S. C., Cleall, P. J., Thomas, H. R., Chalabi, Z., Dowie, J. and Leonardi, G. 2004. An integrated modelling framework for health impact analysis for urban pollution. Project Report.
Cleall, P. J., Thomas, H. R. and Melhuish, T. A. 2004. Comparison of results from the THMCB modelling of buffer, backfill and rock with measured data from prototype repository. Project Report.

2003

Thomas, H. R., Yang, H. T., He, Y. and Cleall, P. J. 2003. A multi-level parallelized substructuring-frontal solution for coupled thermo/hydro/mechanical problems in unsaturated soil. International Journal for Numerical and Analytical Methods in Geomechanics 27(11), pp. 951-965. (10.1002/nag.306)
Thomas, H. R., Cleall, P. J., Chandler, N., Dixon, D. and Mitchell, H. P. 2003. Water infiltration into a large-scale in-situ experiment in an underground research laboratory. Geotechnique 53(2), pp. 207-224. (10.1680/geot.2003.53.2.207)
Thomas, H. R., Cleall, P. J., Chandler, N., Dixon, D. and Mitchell, H. P. 2003. Analysis of the hydraulic interaction between clay buffer and host rock in a large scale test. Presented at: Proceedings of the International Conference on Coupled T-H-C-M Processes in Geosystems: Fundamentals, Modelling, Experiments and Applications, Stockholm, Sweden. pp. 461-466.
Thomas, H. R., Cleall, P. J. and Melhuish, T. A. 2003. Simulation of the prototype repository. Presented at: Advances in Understanding Engineered Clay Barriers: Proceedings of the International Symposium on Large Scale Field Tests in Granite, Sitges, Spain Presented at Ledesma, A. &. ed. pp. 347-352.
Thomas, H. R., Cleall, P. J. and Seetharam, S. C. 2003. Thermo-hydraulic-chemical-mechanical behaviour of unsaturated bentonite. Presented at: Advances in Understanding Engineering Clay Barriers:Proceedings of the International Symposium on Large Scale Field Tests in Granite, Sitges, Spain Presented at Ledesma, A. &. ed. pp. 547-552.
Thomas, H. R., Cleall, P. J. and Mitchell, H. P. 2003. Coupled thermal-hydraulic-mechanical simulation of the buffer/container experiment. Technical Report.
Thomas, H. R., Cleall, P. J. and Melhuish, T. A. 2003. Simulation of the tunnel sealing experiment using THM modelling. Technical Report.
Thomas, H. R., Cleall, P. J. and Melhuish, T. A. 2003. Modelling the prototype repository. Project Report.

2002

Murugesan, K., Thomas, H. R. and Cleall, P. J. 2002. An investigation of the influence of two-stage drying conditions on convective drying of porous materials. International Journal of Numerical Methods for Heat & Fluid Flow 12(1), pp. 29-46. (10.1108/09615530210413154)
Stevens, P. A. et al. 2002. Critical appraisal of state and pressures and controls on the sustainable use of soils in Wales: final report. Project Report. Centre for Ecology and Hydrology; Natural Environment Research Council.
Zhou, Z., Rees, S. W. and Thomas, H. R. 2002. A numerical and experimental investigation of ground heat transfer including edge insulation effects. Building and Environment 37(1), pp. 67-78. (10.1016/S0360-1323(00)00089-5)
Cleall, P. J., Thomas, H., Melhuish, R. A. and Owen, D. H. 2002. Simulation of the behaviour of deep geological repositories – some computational challenges. Presented at: Numerical Models in Geomechanics – NUMOG VIII, Rome, Italy. pp. 235-240.
Rees, S. W., Zhou, Z. and Thomas, H. R. 2002. Multi-dimensional simulation of ground heat transfer at field scale. Presented at: 10th UK Conference of the Association of Computational Mechanics in Engineering (ACME), Swansea, UK. pp. 153-156.
Thomas, H. R., Cleall, P. J. and Seetharam, S. C. 2002. Multispecies chemical transport in unsaturated soil. Presented at: Proceedings 4th International Congress on Environmental Geotechnics, Rio de Janeiro, Brazil. pp. 213-218.
Zhou, Z., Cleall, P. J. and Thomas, H. R. 2002. Coupled multigas, moisture and heat transfer in unsaturated soil. Presented at: Proceedings of the 4th International Congress on Environmental Geotechnics, Rio De Janeiro, Brazil. pp. 237-242.
Thomas, H. R., Cleall, P. J. and Seetharam, S. C. 2002. Numerical modelling of the thermal-hydraulic-chemical- mechanical behaviour of unsaturated clay. In: Vulliet, L., Laloui, L. and Schrefler, B. A. eds. Environmental Geomechanics. Lausanne: EPFL, pp. 125-136.
Thomas, H. R., Cleall, P. J. and Mitchell, H. P. 2002. Comparison of physical measurements and a finite element numerical simulation of water uptake and distribution in the isothermal test. Project Report.
Thomas, H. R., Cleall, P. J. and Melhuish, T. A. 2002. Predictive THMCB modelling of buffer, backfill and rock. Project Report.
Cleall, P. J., Thomas, H. R. and Melhuish, T. A. 2002. Modelling the prototype repository. Project Report.
Cleall, P. J., Thomas, H. R. and Melhuish, T. A. 2002. Modelling the prototype repository. Project Report.
Thomas, H. R. et al. 2002. Training proposal related to study panel 5. Project Report.
Thomas, H. R., Cleall, P. J., Carter, J. B. and McKinley, J. D. 2002. Air wall research project: conceptual modelling. Technical Report.
Thomas, H. R. and Cleall, P. J. 2002. Vapour flow in soils - a brief review. Technical Report.
Thomas, H. R. and Cleall, P. J. 2002. Selection of THMCB models. Project Report.
Thomas, H. R. 2002. Geoenvironmental Engineering Infrastructure Co-operation Network: 1st annual report. Project Report.

2001

Yong, R. N. and Thomas, H. R. 2001. Foreword [Editorial]. Engineering Geology 60(1-4), pp. 1. (10.1016/S0013-7952(00)00083-1)
Rees, S. W., Thomas, H. R. and Zhou, Z. 2001. Ground heat transfer: measurement and simulation. Presented at: TIA Workshop: Thermal Mass in Buildings, Royal Institute of British Architects, London, UK, 31 May , 2001. Royal Institute of British Architects pp. 34-40.
Thomas, H. R. and Cleall, P. J. 2001. Geoenvironmental modelling, (invited keynote paper). Presented at: Proceedings International Conference on Civil Engineering (IISc 2001), Bangalore, India. pp. 100-110.
Thomas, H. R., Cleall, P. J., Mitchell, H. P., Chandler, N. A. and Dixon, D. A. 2001. An assessment of the thermal and hydraulic interaction between a clay buffer and host rock. Presented at: Proceedings of the 3rd British Geotechnical Society Geoenvironmental Engineering Conference. pp. 374-379.
Thomas, H. R., Yong, R. N., Cleall, P. J. and Seetharam, S. C. 2001. 3D contaminant transport model for multiple chemical species in partly saturated soil, (invited paper) computational mechanics. New Frontiers for the New Millenium. Presented at: Proceedings 1st Asian-Pacific Congress on Computational Mechanics, Sydney, Australia. pp. 795-800.
Thomas, H. R., Yong, R. N., Cleall, P. J. and Seetharam, S. C. 2001. Coupled multispecies transport in geochemical problems. Presented at: Proceedings 3rd British Geotechnical Society Geoenvironmental Engineering Conference, Edinburgh, UK. pp. 380-385.
Thomas, H. R., Cleall, P. J. and Hashm, A. A. 2001. Thermal/hydraulic/vhemical/ mechanical (THCM behaviour of partly saturated soil: (invited theme paper). Presented at: Proceedings 10th International Conference on Computer Methods & Advances in Geomechanics, Tucson, USA. pp. 757-763.
Zhou, Z., Cleall, P. J. and Thomas, H. R. 2001. Non-isothermal migration of multiple gas species in partly saturated soil. Presented at: Proceedings 3rd British Geotechnical Society Geoenvironmental Engineering Conference, Edinburgh, UK. pp. 386-392.
Thomas, H. R. and Cleall, P. J. 2001. Pollutant transport and chemical effects. Revue Française de Génie Civil 5(6), pp. 743-775. (10.1080/12795119.2001.9692325)
Thomas, H. R., Cleall, P. J. and Owen, D. H. 2001. Modelling and analysis of geoenvironmental problems using the finite element method. Presented at: 8th International Conference on Civil and Structural Engineering Computing, Vienna, Austria, 19-21 September 2001 Presented at Topping, B. H. V. ed.Proceedings of the Eighth International Conference on Civil and Structural Engineering Computing. Stirling: Civil-Comp Press pp. 459-474.

1998

Thomas, H. R. and He, Y. 1998. Modelling the behaviour of unsaturated soil using an elastoplastic constitutive model. Géotechnique 48(5), pp. 589-603. (10.1680/geot.1998.48.5.589)

1997

Thomas, H. R. and Li, C. L. W. 1997. An assessment of a model of heat and moisture transfer in unsaturated soil. Géotechnique 47(1), pp. 113-131. (10.1680/geot.1997.47.1.113)

Contracts

Title	People	Sponsor	Value	Duration
Low-Carb-Cymru: Assessing, characterising and enhancing geologic carbon storage and geothermal energy in Wales	Sedighi M, Thomas HR, Tripathy S	Ser Cymru NRN Bangor	284000	01/01/2015 - 31/12/2018
Feasibility of dedicated unit to develop environmental and social responsibility (ESR) tools within geoenvironmental and waste sectors in Wales	Koj A, Thomas HR	National Assembly for Wales (KEF)	19903	01/01/2009 - 30/04/2009
Decision information support systems for POPs (GUDISS)	Koj A, Thomas HR	United Nations Industrial Development Organization	12907	05/07/2007 - 31/12/2007
Identification and simulation of arsenic release to groundwater in Bangladesh	Prof RN Yong, Prof HR Thomas	Engineering and Physical Sciences Research Council	123119	01/04/2001 - 31/03/2004
Coupled thermal-hydrological-mechanical -chemical processes for application in repository safety assessment - THERESA	Prof HR Thomas	Commission of European Communities	77860	01/01/2007 - 31/12/2010
Hydraulic conductivity of expansive clays from micro-structural and physico-chemical considerations	Prof HR Thomas	British Council	2700	01/07/2007 - 01/07/2009
Geoenvironmental engineering infrastructure co-operation network	Prof HR Thomas	Commission of European Communities	35174	01/01/2001 - 31/12/2004
Wales Waste and Resources Research Centre	Prof HR Thomas	National Assembly for Wales (WAG)	560388	01/11/2006 - 31/03/2009
A geoenvironmental research and legislative development information exchange on land and marine environmental sustainability and industrial waste management	Prof HR Thomas	The Daiwa Anglo-Japanese Foundation	2500	01/10/2001 - 01/04/2003
Evaluation of Sustainable Development Toolkit - REVIT	Prof HR Thomas	Torfaen Count Borough Council	5000	21/11/2006 - 20/02/2007
Regeneration of European sites in cities and urban environments (RESCUE)	Prof HR Thomas	Commission of European Communities	158196	01/03/2002 - 28/02/2005
Cardiff distributed visualisation facility	Prof HR Thomas, (with COMSC & PHYSX)	Education and Learning Wales	400000	01/03/2001 - 01/03/2004
Sustainable groundwater management in rural India - Geoenvironmental/Health/Social aspects	Prof HR Thomas, (with University of Surrey)	Engineering and Physical Sciences Research Council	12376	29/04/2005 - 28/04/2006
Modelling pre-failure shear strain (solifluction) in freezing and thawing soil slopes	Prof HR Thomas, Dr PJ Cleal,l (with EARTH)	Engineering and Physical Sciences Research Council	192705	01/05/2005 - 30/04/2008
3D virtual reality platform for data analysis of large scale simulation for geoenvironmental problems	Prof HR Thomas, Dr PJ Cleall	Education and Learning Wales	186548	01/12/2001 - 31/07/2002
Geoenvironmental Research Park	Prof HR Thomas, Dr RW Francis	The National Assembly for Wales (European Regional Development Fund)	2506714	01/10/2001 - 01/10/2004
Sustainable materials recovery	Prof HR Thomas, Dr RW Francis, Dr T Mahdi	Welsh Development Agency	148123	01/01/2005 - 31/03/2006
Fibre reinforced soil trials	Prof HR Thomas, Dr T Mahdi	TRL Limited Wales Office	7698	01/02/2005 - 30/04/2005
Implementing sustainable E&T programmes in the field of Radioactive Waste Disposal	Thomas H	European Commission (FP7)	57400	01/09/2013 - 31/08/2016
Thermal inverse modelling and olkiluoto monitoring programme	Thomas H, Sedighi M	Posiva	34610	15/01/2014 - 30/06/2014
PETRUS II - Towards a European Training Market and Professional Qualification in Geological Disposal	Thomas HR	European Commission (FP7)	50932	15/01/2009 - 14/01/2012
Socio-economic aspects of POPs contaminated sites	Thomas HR	United Nations Industrial Devopment Organization	5178	11/10/2005 - 11/10/2006
Contaminated land remediation technologies	Thomas HR	United Nations Industrial Development Organization	16491	01/03/2009 - 30/06/2009
Multiphase computer modelling of near field environment around an underground geological repository	Thomas HR	Ove Arup & Partners Ltd	35500	01/02/2009 - 01/02/2012
Centre of excellence for waste research in Wales	Thomas HR	E B Nationwide Ltd	587453	01/03/2003 - 28/02/2006
Regional project to develop appropriate strategies for identifying sites contaminated by chemicals listed in annexes A, B and/or C of the Stockholm convention	Thomas HR	United Nations Industrial Devopment Organization	39900	07/11/2005 - 06/03/2006
Co-ordination action on education and training in radiation protection and radioactive waste management [CETRAD]	Thomas HR, Cleall PJ	Commission of European Communities	50394	01/01/2004 - 31/12/2005
A land regeneration, industrial waste management and sustainable development network	Thomas HR, Cleall PJ, Owen DH	The National Assembly for Wales (European Regional Development Fund)	235779	01/11/2002 - 31/10/2005
SUE: Pollutants in the urban environment (PUrE)- scoping study	Thomas HR, Cleall PJ, (with University of Surrey)	Engineering and Physical Sciences Research Council	18497	01/01/2004 - 30/09/2004
A land regeneration, Industrial management and sustainable development network	Thomas HR, Cleall PJ, Owen DH	The National Assembly for Wales (European Regional Development Fund)	66412	14/10/2002 - 13/10/2004
Capacity Building	Thomas HR, Francis RW	United Nations Industrial Development Organization	15405	01/03/2009 - 01/07/2009
Geoenvironmental research park Phase 2	Thomas HR, Mahdi T, Francis RW	Various Industry	2603746	31/03/2006 - 30/06/2008
Geoenvironmental research park Phase 2	Thomas HR, Mahdi T, Francis RW	Various Institutions	76847	31/03/2006 - 30/06/2008
SEREN	Thomas HR, Williams KP, Sapsford D, Tripathy S, Griffiths AJ	Welsh European Funding Office, British Geological Survey	5576619	01/03/2010 - 30/06/2015
A centre for the development of advanced descision support tools in the environment field	Thomas HR, Yi L	National Assembly for Wales (WAG)	19889	01/09/2008 - 31/12/2008
Land regeneration network	Thomas HR, Cleall PJ	Welsh Development Agency	20000	01/11/2005 - 01/04/2006
NF-PRO thermo-hyrdo-mechanical (geochemical) processes in the EBS (RTD3)	Thomas HR, Cleall PJ	Nirex Ltd	26800	01/06/2004 - 31/12/2007
Pollutants in the urban environments (PURE)	Thomas HR, Cleall PJ, (with University of Surrey)	Engineering and Physical Sciences Research Council	295131	01/04/2005 - 31/03/2009
Contribution of DFIG based wind turbines to system voltage support	Thomas HR, Ekanayake J	Association of Commonwealth Universities	1430	15/09/2008 - 14/12/2008
Geoenvironmental research park Phase 2	Thomas HR, Mahdi T, Francis RW	The National Assembly for Wales (European Regional Development Fund)	2979406	31/03/2006 - 30/06/2008
Thermal evolution monitoring in Oikiluoto	Thomas HR, Sedighi M	Posiva	29164	15/04/2013 - 31/12/2013
Institute for Compound Semiconductors	Thomas HR, Tasker P, Griffin M, Smowton P, Buckle P (PHYSX),	Welsh Government	6000000	01/04/2015 - 31/03/2018
A land regeneration, industrial waste management and sustainable development network	Thomas HR, Cleall PJ, Owen DH	The National Assembly for Wales (European Regional Development Fund)	156164	14/10/2002 - 13/10/2004
Engineered barrier systems: An integrated approach	Thomas HR, Tripathy S, Vardon P	Fec methodology by EPSRC via Strathclyde	136233	01/04/2012 - 31/03/2016
Large Scale data visualisation, event identification and numberical simulation for gas	Thomas HR, Vardon P	NERC/BGS	59059	04/01/2010 - 31/12/2013
Landfill gas modelling	Cleall PJ, Thomas HR	Persimmon Homes (West Midlands) Ltd	18950	01/05/2003 - 01/05/2006
Understanding and physical and numerical modelling of the key processes in the near-field, and their coupling, for different host rocks and repository strategies (NF-PRO)	Cleall PJ, Thomas HR	Commission of European Communities	160800	01/01/2004 - 31/12/2007

Supervised Students

Title	Student	Status	Degree
A STUDY OF THE TRANSPORT OF A SELECTION OF HEAVY METALS IN UNSATURAED SOIL	HASHM Ahlim Ahmed	Graduate	PhD
An Investigation Of The Behaviour Of The Ground In Response To Energy Extraction	HEPBURN Benjamin	Graduate	PhD
An Investigation of the Thermo/Hydro/Mechanical Behaviour of Large Scale Experiments including Parametric Studies on Var	TEY Chun Yean	Graduate	PhD
Experimental Study On The Hydraulic Conductivity Of Compacted Bentonites In Geoenvironmental Applications	BENNETT Claire	Graduate	PhD
Decision Support System for Brownfield Site Sustainabvle Regeneragtion	PELLEGRINO Cristina	Graduate	MPhil
Exploratory Data Analysis Of The Large Scale Gas Injection Test (LASGIT)	BENNETT Daniel	Graduate	PhD
Arsenic Mobility in Sediments and Contamination of the Begal Basin	SHAW Darren	Graduate	PhD
An Assessment of the Possibility of Stabilising Sabkha Soils Using Oil Lakes Residue - Reuse of Waste Materials	AL-OTAIBI Fahad	Graduate	PhD
A Study of the Thermo/Hydro/Mechanical Behaviour of Two Large Scale In-Situ Experiments	MITCHELL Heather Patricia	Graduate	PhD
Critical Evaluation of some suction measurement techniques	ELGABU Hesham	Graduate	PhD
CARBON DIOXIDE ADSORPTION/DESORPTION AND PERMEABILITY CHARACTERISTICS IN COAL AND ROCKS AN EXPERIMENTAL STUDY	FELIX Joao Filipe Ruivo	Current	PhD
An Investigation into the Use of Chicken Manure to Enhance the Biodegradation of Total Petroleum Hydrocarbons	BRICE Kathryn	Graduate	PhD
Effect Of Gypsum On The Hyrdo-Mechanical Characteristics Of Partially Saturated Sandy Soil	AHMED Khalid Ibrahim	Graduate	PhD
A Decision Support System for the Environmental Impact of e-business	YI Lan	Graduate	PhD
Reactive Transport Modelling Of High Pressure Gas Flow In Coal	HOSKING Lee James	Graduate	PhD
An Investigation of Hydro-Geotechnical processes in Coupled Thermal, Hydraulic, Chemical and Mechanical Behaviour of Unsaturated Soils	SEDIGHI Majid	Graduate	PhD
Modelling the Freezing and Thawing Behaviour of Saturated Soil	GLENDINNING Mark Charles	Graduate	PhD
Soil-Water Characteristic Curves And Shrinkage Behaviour Of Highly Plastic Clays: An Experimental Invesitigation	MOHD TADZA Mohd Yuhyi	Graduate	PhD
AN EXPERIMENTAL INVESTIGATION OF FLOW AND REACTION PORCESSES DURING GAS STORAGE AND DISPLACEMENT IN COAL	HADI MOSLEH Mojgan	Graduate	PhD
An integrated, multicriteria, spatial decision support system, incorporating environmental, social and public health presepectives, for use in geoenergy and geoenvironmental applications	IRFAN Muhammad	Graduate	PhD
An Investigation of the Consolidation Behaviour of Steel Works Sludge	DAUD Nik Norsyahariati Nik	Graduate	PhD
Aspects of the Geological Disposal of High Level Nuclear Waste	STRATOS Panagiotis	Current	PhD
Enhancing groundwater remediation techniques through microbiological control of fluid flow	ALSHIBLAWI Paris	Thesis Submitted	PhD
AN INVESTIGATION OF THE THERMO/HYDRAULIC/MECHANICAL BEHAVIOUR OF UNSATURATED SOILS, INCLUDING EXPANSIVE CLAYS	CLEALL Peter John	Graduate	PhD
A Three-Dimensional Numerical Investigation of the Thermo-Hydro-Mechanical Behaviour Of A Large Scale Prototype Repository	VARDON Philip	Graduate	PhD
CoupledThermo-Hydro-Mechanical-Chemical Behaviour of MX80 Bentonite In Geotechnical Applications	BAG Ramakrishna	Graduate	PhD
An Experimental and Numerical Investigation of Heat and Mass Movement in Unsaturated Clays	SINGH Rao Martand	Graduate	PhD
An investigation of reactive high pressure gas transport in coal	ZAGORSCAK Renato	Current	PhD
Modelling of Reactive Gas Transport in Unsaturated Soil - A Coupled Thermo-Hydro-Mechanical Approach	MASUM Shakil Al	Graduate	PhD
An Investigation of the Influence of Elevated Temperatures on the Thermal-Hydraulic-Mechanical Response of Unsaturated Soils	SIDDIQUA Sumi	Graduate	PhD
An Investigation of the Thermo/hydro/chemical/mechanical Behaviour of Unsaturated Soils	SEETHARAM Suresh Channarayapatna	Graduate	PhD
An Investigation of the Three-dimensional Thermo/hydro/mechanical Behaviour of Large Scale in-situ Experiments	MELHUISH Troy Alexander	Graduate	PhD
Enhanced Natural Attenuation of Organic Chemical Contaminants in Groundwater	AMBER Wayne Richard	Graduate	PhD
An Experimental Investigation Of Landfill Leachate Impact On Surrounding Soil	MILAD Ziad Abdelsalam	Graduate	PhD

Honours and awards

* Appointed: Fellow of the Royal Society, 2012 * Elected: Fellow of the Royal Academy of Engineering, 2003 * Fellow of the Learned Society of Wales * Delivered: 15 keynote and invited lectures at international conferences (e.g. 11th Int. Assoc. of Computer Methods and Advances in Geomechanics, Italy, 2005) * Editorial Board Member: Geotechnique,2001, Int. J. of Geomechanics, International J. for Numerical and Analytical Methods in Geomechanics * Member: EPSRC Technical Opportunities Panel (TOP), 2006-date * Member: RAEng Standing Committee for Research and Secondment and Lead Assessor for Civil Engineering, 2005-date, and Standing Committee for International Activities 2007-date * Reviewer: Research Quality Framework (RAE-equivalent) at Monash University, 2006 * Member and Chair Elect: UN International Atomic Energy Agency Technical Committee “Building Confidence in Geological Disposal of High Level Nuclear Waste”, 2001-date * Guest Editor: Geotechnique Symposium in Print, 2003, Special Issue of Engineering Geology on Geoenvironmental Engineering, 2001 and 2003 * Consultant: International Atomic Energy Agency.

Professor Hywel Thomas elected Foreign Member by the Chinese Academy of Sciences