Yr Athro Hywel Thomas

2026

• Chen, Y. , Shao, J. and Thomas, H. 2026. Launch of Environmental, Geological and Geotechnical Engineering (EGGE) [Editorial]. Environmental, Geological and Geotechnical Engineering 1 (1) 100003. (10.1016/j.egge.2026.100003)
• Thomas, H. R. , Sadasivam, S. and Almolliyeh, M. 2026. CO2 storage in coal seams: a case study-based review of the opportunities and challenges. Environmental, Geological and Geotechnical Engineering 1 (1) 100005. (10.1016/j.egge.2026.100005)

2025

• Shi, Y. et al., 2025. Simplified methods for the design of landfill double composite liners using neural network. Geosynthetics International 32 (3), pp.342-354. (10.1680/jgein.24.00042)

2024

• Chen, M. et al., 2024. Evaluation of CO2-enhanced gas recovery and storage through coupled non-isothermal compositional two-phase flow and geomechanics modelling. Energy 305 132410. (10.1016/j.energy.2024.132410)
• An, N. , Zagorscak, R. and Thomas, H. R. 2024. Environmental assessment of underground coal gasification in deep-buried seams. Environmental Geotechnics 11 (6), pp.418-439. (10.1680/jenge.20.00177)
• Cui, L. et al., 2024. Numerical investigation of gas migration behaviour in saturated bentonite with consideration of temperature. Acta Geotechnica 19 , pp.2381-2393. (10.1007/s11440-024-02272-5)
• Wiatowski, M. et al., 2024. Experimental study on tar formation during underground coal gasification: Effect of coal rank and gasification pressure on tar yield and chemical composition. Fuel 357 130034. (10.1016/j.fuel.2023.130034)
• Thomas, H. and Chen, M. 2024. Insights into carbon dioxide sequestration into coal seams through coupled gas flow-adsorption-deformation modelling. Journal of Rock Mechanics and Geotechnical Engineering 16 (1), pp.26-40. (10.1016/j.jrmge.2023.11.004)

2023

• Almolliyeh, M. et al. 2023. Experimental investigation of CO2-CH4 core flooding in large intact bituminous coal cores using bespoke hydrostatic core holder. International Journal of Coal Geology 279 104376. (10.1016/j.coal.2023.104376)
• Xie, H. et al., 2023. Analytical model for contaminants transport in triple composite liners with depth-dependent adsorption process. Journal of Hydrology 625 (Part B) 130162. (10.1016/j.jhydrol.2023.130162)
• Stańczyk, K. et al., 2023. CO 2 injection via a horizontal well into the coal seam at the Experimental Mine Barbara in Poland. Energies 16 (20) 7217. (10.3390/en16207217)
• Almolliyeh, M. et al. 2023. Subcritical CO2 adsorption on geomaterials of coal-bearing strata in the context of geological carbon sequestration. International Journal of Coal Geology 277 104340. (10.1016/j.coal.2023.104340)
• Xie, H. et al., 2023. Analytical model for the design of permeable reactive barriers considering solute transport in a dual-domain system. Journal of Environmental Engineering 149 (9) 7159. (10.1061/JOEEDU.EEENG-7159)
• Wiatowski, M. et al., 2023. Large-scale ex situ tests for CO 2 storage in coal beds. Energies 16 (17) 6326. (10.3390/en16176326)
• Gao, W. et al. 2023. A numerical study on performance efficiency of a low-temperature horizontal ground-source heat pump system. Energy and Buildings 291 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) 3279. (10.3390/en16073279)
• Irfan, M. et al. 2023. Mapping social capital across Wales (UK) using secondary data and spatial analysis. SN Social Sciences 3 56. (10.1007/s43545-023-00639-1)
• Xie, H. et al., 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. et al. 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. et al. 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. et al. 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 204901. (10.1016/j.jgsce.2023.204901)

2022

• Gao, W. et al. 2022. Improving computational efficiency of numerical modelling of horizontal ground source heat pump systems for accommodating complex and realistic atmospheric processes. Geothermics 106 102568. (10.1016/j.geothermics.2022.102568)
• Liu, K. et al. 2022. Insights into the thermal performance of underground high voltage electricity transmission lines through thermo-hydraulic modelling. Energies 15 (23) 8897. (10.3390/en15238897)
• Xie, H. et al., 2022. A two-dimensional semi-analytical model for tracer gas injection and transport in a landfill system. Computers and Geotechnics 151 104995. (10.1016/j.compgeo.2022.104995)
• Zhang, C. et al., 2022. An analytical model for diffusion of chemicals under a thermal gradient in finite clayey soil. Computers and Geotechnics 150 104889. (10.1016/j.compgeo.2022.104889)
• Kapusta, K. et al., 2022. Experimental simulations of methane-oriented underground coal gasification using hydrogen - The effect of coal rank and gasification pressure on the hydrogasification process. International Journal of Hydrogen Energy (10.1016/j.ijhydene.2022.10.012)
• Zagorscak, R. et al. 2022. Risk assessment methodology for Underground Coal Gasification technology. Journal of Cleaner Production 370 133493. (10.1016/j.jclepro.2022.133493)
• Chen, M. , Masum, S. and Thomas, H. 2022. 3D hybrid coupled dual continuum and discrete fracture model for simulation of CO2 injection into stimulated coal reservoirs with parallel implementation. International Journal of Coal Geology 262 104103. (10.1016/j.coal.2022.104103)
• Gao, W. et al. 2022. Estimation and prediction of shallow ground source heat resources subjected to complex soil and atmospheric boundary conditions. Renewable Energy 197 , pp.978-994. (10.1016/j.renene.2022.07.148)
• Masum, S. A. et al. 2022. A numerical modelling study to support design of an in-situ CO2 injection test facility using horizontal injection well in a shallow-depth coal seam. International Journal of Greenhouse Gas Control 119 103725. (10.1016/j.ijggc.2022.103725)
• Sadasivam, S. et al. 2022. Kinetics of gas phase CO2 adsorption on bituminous coal from a shallow coal seam. Energy and Fuels 36 (15), pp.8360–8370. (10.1021/acs.energyfuels.2c01426)
• Cui, L. et al. 2022. Investigation on gas migration behaviours in saturated compacted bentonite under rigid boundary conditions. Acta Geotechnica 17 , pp.2517-2531. (10.1007/s11440-021-01424-1)
• Chen, M. et al. 2022. Modelling anisotropic adsorption-induced coal swelling and stress dependent anisotropic permeability. International Journal of Rock Mechanics and Mining Sciences 153 105107. (10.1016/j.ijrmms.2022.105107)
• Gao, W. , Zagorscak, R. and Thomas, H. R. 2022. Numerical study of ground deformation during underground coal gasification through coupled flow-geomechanical modelling. Fuel 315 122833. (10.1016/j.fuel.2021.122833)
• An, N. , Zagorščak, R. and Thomas, H. R. 2022. Adsorption characteristics of rocks and soils, and their potential for mitigating the environmental impact of underground coal gasification technology: a review. Journal of Environmental Management 305 114390. (10.1016/j.jenvman.2021.114390)
• Ma, Y. et al., 2022. THMC constitutive model for membrane geomaterials based on mixture coupling theory. International Journal of Engineering Science 171 103605. (10.1016/j.ijengsci.2021.103605)
• Gao, W. , Zagorščak, R. and Thomas, H. R. 2022. Insights into ground response during underground coal gasification through thermo-mechanical modeling. International Journal for Numerical and Analytical Methods in Geomechanics 46 (1), pp.3-22. (10.1002/nag.3287)
• Sadasivam, S. et al. 2022. Characterisation of inorganic constitutions of condensate and solid residue generated from small-scale ex situ experiments in the context of underground coal gasification. Environmental Science and Pollution Research 29 , pp.2203-2213. (10.1007/s11356-021-15780-8)
• An, N. , Zagorscak, R. and Thomas, H. R. 2022. Transport of heat, moisture, and gaseous chemicals in hydro-mechanically altered strata surrounding the underground coal gasification reactor. International Journal of Coal Geology 249 103879. (10.1016/j.coal.2021.103879)
• Gao, W. et al. 2022. Simulation of underground coal gasification based on a coupled thermal-hydraulic-chemical model. Combustion Theory and Modelling 26 (1), pp.110-134. (10.1080/13647830.2021.1992507)

2021

• Zhang, Z. et al., 2021. Modelling non-isothermal volume change and solute transport behaviours of a semi-permeable clay soil under the combined influence of mechanical loading, chemical-osmosis, and thermo-osmosis. Engineering Geology 293 106271. (10.1016/j.enggeo.2021.106271)
• Chen, M. , Masum, S. and Thomas, H. 2021. Modeling adsorption and transport behavior of gases in moist coal matrix. Energy and Fuels 35 (16), pp.13200-13214. (10.1021/acs.energyfuels.1c01334)
• Wang, X. et al. 2021. Poisoning effect of calcium hydroxide on Fe–Ce/TiO2 catalyst for NO removal: evolution of active species and surface properties. Reaction Kinetics, Mechanisms and Catalysis 133 , pp.245-258. (10.1007/s11144-021-01980-3)
• Masum, S. A. and Thomas, H. R. 2021. Effects of microbial spatial distribution on organic biodegradation and immobilization of trace metals in co-contaminated soils. Computers and Geotechnics 133 104063. (10.1016/j.compgeo.2021.104063)
• Yan, H. et al., 2021. Analytical model for coupled consolidation and diffusion of organic contaminant transport in triple landfill liners. Geotextiles and Geomembranes 49 (2), pp.489-499. (10.1016/j.geotexmem.2020.10.019)
• An, N. et al. 2021. A numerical investigation into the environmental impact of underground coal gasification technology based on a coupled thermal-hydro-chemical model. Journal of Cleaner Production 290 125181. (10.1016/j.jclepro.2020.125181)
• Gao, W. , Zagorščak, R. and Thomas, H. R. 2021. Insights into solid-gas conversion and cavity growth during Underground Coal Gasification (UCG) through Thermo-Hydraulic-Chemical (THC) modelling. International Journal of Coal Geology 237 103711. (10.1016/j.coal.2021.103711)
• Wang, X. et al. 2021. Effect of synthesis methods on Fe-Ce/Ti catalysts for selective catalytic reduction: the physicochemical properties and catalytic activity. Reaction Kinetics, Mechanisms and Catalysis 132 , pp.331-345. (10.1007/s11144-020-01905-6)
• Ma, Y. et al., 2021. The influence of coupled physical swelling and chemical reactions on deformable geomaterials. International Journal for Numerical and Analytical Methods in Geomechanics 45 (1), pp.64-82. (10.1002/nag.3134)
• Chen, M. , Masum, S. and Thomas, H. 2021. Modeling non-isothermal transport behavior of real gas in deformable coal matrix. Energy and Fuels 35 (2), pp.1605-1619. (10.1021/acs.energyfuels.0c03728)

2020

• Yan, H. et al., 2020. Reply to the discussion by Wu X. on "An analytical model for chemical diffusion in layered contaminated sediment". International Journal for Numerical and Analytical Methods in Geomechanics 44 (18), pp.2527-2529. (10.1002/nag.3142)
• Hosking, L. J. , Chen, M. and Thomas, H. R. 2020. Numerical analysis of dual porosity coupled thermo-hydro-mechanical behaviour during CO2 sequestration in coal. International Journal of Rock Mechanics and Mining Sciences 135 104473. (10.1016/j.ijrmms.2020.104473)
• Sadasivam, S. et al. 2020. Characterisation of the contaminants generated from a large-scale ex-situ underground coal gasification study using high-rank coal from the South Wales coalfield. Water, Air, and Soil Pollution 231 519. (10.1007/s11270-020-04888-1)
• Chen, M. et al. 2020. A coupled compressible flow and geomechanics model for dynamic fracture aperture during carbon sequestration in coal. International Journal for Numerical and Analytical Methods in Geomechanics 44 (13), pp.1727-1749. (10.1002/nag.3075)
• Chen, M. et al. 2020. Numerical analysis of improvements to CO2 injectivity in coal seams through stimulated fracture connection to the injection well. Rock Mechanics and Rock Engineering 53 , pp.2887-2906. (10.1007/s00603-020-02088-1)
• Zagorščak, R. et al. 2020. Experimental study of underground coal gasification (UCG) of a high-rank coal using atmospheric and high-pressure conditions in an ex-situ reactor. Fuel 270 117490. (10.1016/j.fuel.2020.117490)
• Hosking, L. J. and Thomas, H. R. 2020. Dual porosity modelling of coal core flooding experiments with carbon dioxide. Computers and Geotechnics 121 103454. (10.1016/j.compgeo.2020.103454)
• Brabham, P. et al. 2020. The potential use of mine water for a district heating scheme: A case study, Caerau, Upper Llynfi valley, South Wales, UK. Quarterly Journal of Engineering Geology and Hydrogeology 53 (1) 145. (10.1144/qjegh2018-213)
• Wang, X. et al., 2020. Superior activity of iron-manganese supported on kaolin for NO abatement at low temperature. Journal of Environmental Sciences 88 , pp.237-247. (10.1016/j.jes.2019.08.017)
• Sadasivam, S. et al. 2020. Experimental study of methane-oriented gasification of semi-anthracite and bituminous coals using oxygen and steam in the context of underground coal gasification (UCG): Effects of pressure, temperature, gasification reactant supply rates and coal rank. Fuel 268 117330. (10.1016/j.fuel.2020.117330)
• Kapusta, K. et al., 2020. Large-scale experimental investigations to evaluate the feasibility of producing methane rich gas (SNG) through underground coal gasification process. Effect of coal rank and gasification pressure. Energies 13 (6) 1334. (10.3390/en13061334)
• Wang, X. et al., 2020. The effect of different Ca precursors on the activity of manganese and cerium oxides supported on TiO2 for NO abatement. Reaction Kinetics, Mechanisms and Catalysis 129 , pp.153-164. (10.1007/s11144-019-01714-6)

2019

• Wang, X. et al., 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. et al. 2019. GIS-based investigation of historic landfill sites in the coastal zones of Wales (UK). Euro-Mediterranean Journal for Environmental Integration 4 (1) 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 102978. (10.1016/j.jngse.2019.102978)
• Wang, X. et al., 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. et al., 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. et al., 2019. Deep seam and minesoil carbon sequestration potential of the South Wales Coalfield, UK. Journal of Environmental Management 248 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. et al. 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. et al. 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. et al. 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 2018. Proceedings 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) 04018075. (10.1061/(ASCE)GT.1943-5606.0001955)
• Irfan, M. et al. 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. et al., 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. et al., 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. Published in: 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 2018. Proceedings of GeoShanghai 2018 International Conference: Geoenvironment and Geohazard. Springer. , pp.386-394. (10.1007/978-981-13-0128-5_43)

2017

• Irfan, M. et al. 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) 53. (10.3390/geosciences7030053)
• Sarhosis, V. et al., 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) 04016068. (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) D4015002. (10.1061/(ASCE)HZ.2153-5515.0000272)

2016

• Xie, H. et al., 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. et al., 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.
• Hepburn, B. D. P. et al., 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. et al. 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 2016. GEOProcessing 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 2016. ACME-UK 2016: 24th Conference on Computational Mechanics 31 Mar- 1 Apr 2016 Cardiff: Proceedingsf. Cardiff: Cardiff University. , pp.154-157.
• Wang, M. et al. 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 2016. ACME-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)
• 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)
• 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.
• 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 2016. ACME-UK: 2016 24th Conference on Computational Mechanics. Cardiff: Cardiff University/ACME. , pp.322-325.

2015

• Xie, H. et al., 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. et al., 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. et al. 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. et al. 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)
• Hosking, L. et al. 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. Published in: 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)
• Piotr, M. et al., 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.
• Sarhosis, V. et al. 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.
• Sedighi, M. et al. 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., 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)
• Tripathy, S. , Bag, R. and Thomas, H. R. 2015. Enhanced isothermal effect on swelling pressure of compacted MX80 bentonite. In: Lollino, G. et al., Engineering Geology for Society and Territory: Volume 6. Vol. 6, Springer. , pp.537-539. (10.1007/978-3-319-09060-3_96)

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)
• 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)
• 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)
• Bennett, D. et al. 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)
• Irfan, M. et al. 2014. GIS based site ranking using neighbourhood analysis and comparison. ThinkMind , pp.51-57.
• Sedighi, M. et al. 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. et al. 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.
• Sedighi, M. et al. 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.
• 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.
• 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. Published in: Khalili, N. , Russell, A. R. and Khoshghalb, A. eds. Unsaturated Soils: Research and Applications. CRC Press. , pp.1701-1707. (10.1201/b17034-248)
• Vardon, P. J. et al., 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)
• Xie, H. et al., 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.

2013

• 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)
• Bennett, D. et al. 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.
• 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)
• 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 2013. Proceedings of the 3rd International Symposium on Computational Geomechanics, Krakow, Poland, 21-23 August, 2013. , pp.381-388.
• Sedighi, M. et al. 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. Published in: Manassero, M. et al., Coupled Phenomena in Environmental Geotechnics. Boca Raton, FL: CRC Press. , pp.625-630.
• Thomas, H. R. et al. 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.

2012

• Bennett, D. et al. 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. et al. 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. et al. 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 2012. 4th International Conference on Problematic Soils. Problematic Soils Vol. 4. Wuhan, China: Ci-Premier PTE Ltd. , pp.143-151.
• 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)
• Hadi Mosleh, M. et al. 2012. Gas transport and reaction processes in problematic soils. Presented at: 4th International Conference on Problematic Soils (PS12) Wuhan, China 21-23 September 2012. Published in: Kong, L. W. ed. Proceedings of the 4th International Conference on Problematic Soils. Singapore: Chinese Academy of Sciences. , pp.227-233.
• 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. 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.
• 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) GTJ103591. (10.1520/GTJ103591)

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) GTJ103585. (10.1520/GTJ103585)
• Mahdi, T. et al. 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. Published in: Fox, H. R. and Moore, H. M. eds. Restoration and Recovery: Regenerating land and communities. Whittles. , pp.81-91.
• 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. Published in: Pande, G. N. and Pietruszczak, S. eds. Proceedings of the 2nd International Symposium on Computational Geomechanics (ComGeo II). Cavtat-Dubrovnik: ComGeo. , pp.538-546.
• 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)
• 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)
• Vardon, P. J. et al. 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)
• 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. Published in: 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.

2010

• Cleall, P. J. et al. 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. Published in: Datta, M. ed. Proceedings of the 6th International Congress on Environmental Geotechnics, New Delhi, India. Vol. 2.Tata McGraw Hill. , pp.1691-1694.
• Masum, S. A. et al. 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 2010. Proceedings of 6th International Congress of Environmental Geotechnics (6ICEG). New Delhi, India: McGraw Hill. , pp.1735-1738.
• Sedighi, M. et al. 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 2010. Proceedings of the 6th International Congress of Environmental Geotechnics (6ICEG),. Tata McGraw Hill Education. , pp.1619-1622.
• 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. Published in: 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.
• 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)
• 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, SpainPublished in: E., A. E. and Gens, A. eds. Taylor & Francis. , pp.381-386.
• 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. Published in: 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)

2009

• 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)
• Thomas, H. R. et al. 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. et al. 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. 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)
• Vardon, P. J. et al. 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. Published in: 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)
• Vardon, P. J. et al. 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 2009. Proceedings 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. Published in: Pietruszczak, S. et al., 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.

2008

• Vardon, P. J. et al. 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. Published in: 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

• 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))
• 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)

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. et al. 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. et al. 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, UKVol. 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, UKVol. 2., pp.1603-1610.
• Jones, M. J. , Cleall, P. J. and Thomas, H. R. 2006. The PUrE software platform: general specification. Project Report.
• 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, UKVol. 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.

2005

• 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, ItalyPublished in: Barla G, B. M. ed. Vol. 4., pp.275-288.
• 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.
• 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.
• Thomas, H. R. et al. 2005. Behaviour of engineered barriers - some recent advances. Presented at: International Conference on Problematic Soils (GEOPROB 2005) Famagusta, Cyprus

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. 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.
• Cleall, P. J. et al. 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, CanadaVol. IX.Balkema. , pp.311-318.
• Seetharam, S. C. et al., 2004. An integrated modelling framework for health impact analysis for urban pollution. Project Report.
• 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, MalaysiaVol. 16-18., pp.619-624.
• Thomas, H. R. et al. 2004. Hydro-mechanical behaviour of unsaturated buffer. Presented at: Proceedings of the International Conference: From Experimentatal Evidence Towards Numerical Modelling of Unsaturated Soils Weimar, GermanyVol. 94.Springer Proceedings in Physics. , pp.327-340.
• Thomas, H. R. et al. 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, SwedenVol. IPR-04., pp.63-72.

2003

• Thomas, H. R. et al. 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. et al. 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. et al. 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, SpainPublished in: Ledesma, A. &. ed. , pp.347-352.
• Thomas, H. R. , Cleall, P. J. and Melhuish, T. A. 2003. Modelling the prototype repository. Project 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 Mitchell, H. P. 2003. Coupled thermal-hydraulic-mechanical simulation of the buffer/container experiment. Technical Report.
• 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, SpainPublished in: Ledesma, A. &. ed. , pp.547-552.

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)
• 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. et al. 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.
• 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.
• 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.
• 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.
• Thomas, H. R. 2002. Geoenvironmental Engineering Infrastructure Co-operation Network: 1st annual report. Project Report.
• Thomas, H. R. and Cleall, P. J. 2002. Selection of THMCB models. Project Report.
• Thomas, H. R. and Cleall, P. J. 2002. Vapour flow in soils - a brief review. Technical Report.
• Thomas, H. R. et al. 2002. Air wall research project: conceptual modelling. Technical Report.
• Thomas, H. R. , Cleall, P. J. and Melhuish, T. A. 2002. Predictive THMCB modelling of buffer, backfill and rock. Project Report.
• 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 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.
• 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. et al. 2002. Training proposal related to study panel 5. Project Report.
• 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.

2001

• 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. 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 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.
• Thomas, H. R. et al. 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. , 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. Published in: Topping, B. H. V. ed. Proceedings of the Eighth International Conference on Civil and Structural Engineering Computing. Stirling: Civil-Comp Press. , pp.459-474.
• Thomas, H. R. et al. 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. et al. 2001. Coupled multispecies transport in geochemical problems. Presented at: Proceedings 3rd British Geotechnical Society Geoenvironmental Engineering Conference Edinburgh, UK, pp.380-385.
• Yong, R. N. and Thomas, H. R. 2001. Foreword [Editorial]. Engineering Geology 60 (1-4), pp.1. (10.1016/S0013-7952(00)00083-1)
• 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.

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)