- Faculty of Engineering
- Department of Civil Engineering
- Senior Lecturer Grade II
Contact information
Univerity of Moratuwa
Katubadda
Moratuwa
Sri Lanka
Teaching and Administrative Activities
CE2043 : Soil Mechanics and Geology I -Undergraduate -2024
CE2132 : Soil Mechanics and Geology II -Undergraduate -2025
CE3133 : Geotechnical Engineering -Undergraduate -2025
CE5401 : Engineering Properties of Soil - M.Sc/P.G Diploma in Geotechnical Engineering -Postgraduate -2022
CE1140 - Introduction to Conceptual Design -Undergraduate -2024
CE4912 - Comprehensive Design Project -Undergraduate -2024
CE4922 - Research Project -Undergraduate -2024
CE5424 - Computer Applications in Geotechnical Engineering -Postgraduate -2023
CE5412 - Research Seminar -Postgraduate -2024
M. Sc. Project - M.Sc/P.G Diploma in Geotechnical Engineering -Postgraduate -2024
CE5421 - Design and Construction of Shallow Foundations -Postgraduate -2025
CE5146 Geo-techniques in Structural Engineering -Postgraduate -2025
Semester 3, 福利在线看 Coordinator, Department of Civil Engineering, 福利在线看 of Moratuwa - (2022 To date)
Geotechnical Engineering Division Coordinator - (2021 To date)
Accreditation Committee Member - Department of Civil Engineering - (2022 To date)
Staff Advisor - Civil Engineering Society (CES) - (2023 To date)
Member - Short Course Review Committee, Faculty of Engineering - (2024 To date)
Coarse Coordinator - M.Sc. in Geotechnical Engineering - (2025 To date)
Faculty 福利在线看 Committee Representative - Department of Civil Engineering - (2026 To date)
Research Activities
Soft ground improvement with sustainable material
Interface shear behaviour of soil and concrete
Circular Carbon Economy
Carbon storage and utilization
CO2 storage in geological reservoirs
Geotechnical Engineering
Shallow foundations
Subsurface fluid flow
Geotechnical applications and rock mechanics
Analysis of complex flow behaviour in porous media especially in fractured geological reservoirs
Analysis of fully-coupled fluid flow+adsorption+mechanical deformation process in porous media
Experimental numerical and statistical analysis of hydro-mechanical alterations in fluid-interreacted geological reservoirs and the consequent environmental and safety issues
Micro-computed tomography (micro-CT) based image analyses of porous media.
Available
My research aim is to search for novel and creative solutions for current and raising issues in Geotechnical and Earth Science Engineering connected to Circular Economics. My main research expertise and interests are: 1. Soft ground stabilization with sustainable material such as quarry dust, rice husk ash, geo-polymer, etc. 2. Analyzing the interface shear behavior of soil and geotechnical structures 3. Carbon (CO2) storage in underground reservoirs as a waste management, coupled with hydrocarbon (CH4) extraction as an alternative energy generation. 4. Analysis of complex CO2 flow behaviour in porous media, especially in fractured geological reservoirs, and analysis of fully-coupled fluid flow 茂驴陆 adsorption 茂驴陆 mechanical deformation process in geological reservoirs related to carbon storage. 5. Analysis of hydrocarbon (CH4) extraction from geological reservoirs, specifically CO2-enhanced coalbed methane extraction (ECBM). 6. Experimental, numerical and
Education and Professional Affiliations
PhD, 福利在线看 of Melbourne, Australia ,2020 in Geotechnical Engineering
Bachelors, 福利在线看 of Moratuwa, Sri Lanka ,2016 BSc Eng. (Hons) in Civil Engineering
Associate Member - The Institution of Engineers, Sri Lanka (IESL)(2016 To date)
Associate Member - Engineers Council Sri Lanka (ECSL) (2021 To date)
Career
Trainee Civil Engineer at MAGA Engineering (Pvt) Ltd
Visiting Professor, Department of Civil Engineering, Sirindhorn International Institute of Technology, Rangsit Campus (SIIT-RS), Thailand (from 2023 August to October)
Visiting Lecturer, Sri Lanka Institute of Information Technology (SLIIT), Sri Lanka (from 2023 July to December)
Visiting Lecturer, Sri Lanka Technological Campus (SLTC), Sri Lanka (from 2022 to date)
Visiting Lecturer, ESOFT College of Engineering & Technology, Sri Lanka (from 2022 to date)
Visiting Lecturer and External Research Supervisor, CINEC Campus Sri Lanka | Maritime College (from 2021 to date)
Lecturer (Contract), Department of Civil Engineering, 福利在线看 of Moratuwa, Sri Lanka (from 2020 to 2021)
Senior tutor, Department of Infrastructure Engineering, 福利在线看 of Melbourne, Australia (from 2018 to 2020)
Graduate Research
Assistant, Department of Civil Engineering, 福利在线看 of Moratuwa, Sri Lanka (from 2016 to 2017)
Visiting Instructor, Department of Civil Engineering, 福利在线看 of Moratuwa, Sri Lanka (from 2016 to 2017)
Trainee Engineer, MAGA Engineering (Pvt) Ltd, Sri Lanka (from 2014 to 2015)
Honours and Awards
鈥淧hD Write-Up Award鈥� awarded by Melbourne School of Engineering, 福利在线看 of Melbourne, Australia (Received 2020)
鈥淧earson William Tewksbury Scholarship鈥� awarded by Melbourne School of Engineering, 福利在线看 of Melbourne, Australia (Received 2019)
鈥淕eorge Lansell Memorial Scholarship鈥� awarded by Melbourne School of Engineering, 福利在线看 of Melbourne, Australia (Received 2019)
鈥淏est research presentation award鈥� awarded at the International postgraduate summer school, North-eastern 福利在线看, China (Received 2019)
鈥淏est Presentation Award (Storage)鈥� awarded at the PCC Research Snapshot organized by Peter Cook Centre for Carbon Capture and Storage Research, 福利在线看 of Melbourne, Australia (Received 2019)
鈥淭he Melbourne Research Scholarship鈥� awarded by 福利在线看 of Melbourne, Australia (Received 2017)
鈥淭he Best Undergraduate Research in Geotechnical Engineering in Sri Lankan Universities during the year 2016鈥� awarded by Sri Lankan Geotechnical Society, Sri Lanka (Received 2016)
鈥淪pecial Award for 福利在线看 Excellence in Civil Engineering鈥� for the Civil Engineering graduand who obtains the 2nd highest Overall Grade point Average of 3.7 and above at the B.Sc. Engineering Degree Examination. (福利在线看 year 2014/2015) awarded by 福利在线看 of Moratuwa, Sri Lanka (Received 2016)
鈥淕eotechnical Engineering Award鈥� for the Civil Engineering student who obtains the highest-Grade point Average of 3.7 and above at the first attempt for the specified Geotechnical Engineering subjects. (福利在线看 year 2014/2015) awarded by 福利在线看 of Moratuwa, Sri Lanka (Received 2016)
Award for the Outstanding Research Performances (Received 2022)
Publications*
Sampath, K. H. S. M., Perera, M. S. A., Ranjith, P. G., & Matthai, S. K. ,".Investigation of the mechanical behaviour of brine saturated brown coal under uni-axial compression.",CRC Press ,2018
Batuwita, I., Sampath, K. H. S. M., & Ranathunga, A. S.,".Exploring the Suitability of Fly Ash and Rice Husk Ash in One-Part Geopolymer: A Case Study for Sustainable, Low-Carbon Construction.",Moratuwa Engineering Research Conference (MERCon),福利在线看 of Moratuwa, Sri Lanka,2025,pp 521-526
Y. Jayapathma and K. H. S. M. Sampath,".Effect of Coir Husk Fiber on Rice Husk Ash and Cement Based Peat Stabilization.",Moratuwa Engineering Research Conference (MERCon),福利在线看 of Moratuwa, Sri Lanka,2025,pp. 392-397
Deshan K. A. M. M. and Sampath K. H. S. M.,".Impact of Particle Morphology on the Shear Behavior of Quarry Dust/Sea Sand + Concrete Interface in Geotechnical Structures.",Moratuwa Engineering Research Conference (MERCon),福利在线看 of Moratuwa, Sri Lanka,2024,pp 157-162
Ranasinghe R.T. and Sampath K.H.S.M.,".Analyzing slope rectification strategies using the shear strength reduction method.",10th International Symposium on Advances in Civil and Environmental Engineering Practices for Sustainable Development (ACEPS 芒鈧�� 2024),福利在线看 of Ruhuna, Sri Lanka,2024,
R. J. K. P. N. Ranathunga, K. H. S. M. Sampath, A. S. Ranathunga,". Prediction of Geotechnical Properties of Rice Husk Ash-Stabilized Soil Systems.",Moratuwa Engineering Research Conference (MERCon),福利在线看 of Moratuwa, Sri Lanka,2023,pp. 240-245
W.M.T. Sachinika, K.H.S.M. Sampath,".Analyzing Slope Stability: A Comparative Study between Limit Equilibrium and Shear Strength Reduction Methods.",1st International Conference on Technological Research and Innovations (ICTRI - 2023),Faculty of Technology, Eastern 福利在线看, Sri Lanka,2023,
W.A.W. Wijesingha, K.H.S.M. Sampath ,".Analysis of the shear behavior of stabilized soil-concrete interface in geotechnical structures.",The 14th International Conference on Sustainable Built Environment 2023 (ICSBE),Earls Regency Hotel, Kandy, Sri Lanka,2023,
Perera, S. Y. W., Sampath, K. H. S. M.,".Analysis of the behaviour of the improved soil under shallow concrete foundations.",15th International Research Conference,General Sir John Kothalawala Defence 福利在线看, Sri Lanka,2022,
Sandamali, D. M. T. U., Sampath, K. H. S. M., Ranathunga, A. S.,".Prediction of Compaction Properties of Clayey Soils Stabilized with Calcium Carbide Residue.",International Conference on Engineering,The Faculty of Engineering, 福利在线看 of Jaffna, Sri Lanka,2022,
Malalathunga C. M., Sampath K.H.S.M.,".Strength Analysis of Improved-Soil Pertinent to Shallow Ground Stabilization: A Meta-Analysis.",3rd International conference on Geotechnical Engineering (ICGE 鈥� COLOMBO 2020),Colombo, Sri Lanka,2021,
Sampath, K. H. S. M., Sin, I., Windt, L., Perera, M. S. A., & Matthai, S. K. ,".Changes in coal structure, induced by coal-supercritical CO2 interaction: experimental and modelling results of CO2 adsorption on coal.",Second Biennial Meeting of Australian Chapter of InterPore,The 福利在线看 of Melbourne, Parkville, Australia,2018,
Sampath, K. H. S. M., Perera, M. S. A., Ranjith, P. G., & Matthai, S. K. ,".Investigation of the mechanical behaviour of brine saturated brown coal under uni-axial compression.",From Research to Engineering: Proceedings of the International Conference on Geo-Mechanics, Geo-Energy and Geo-Resources (IC3G 2018),Chengdu, PR China ,2018,67
Sampath, K. H. S. M., Perera, M. S. A., Ranjith, P. G., & Stephan, S. K. ,".Evaluation of Superiority of Liquid CO2 as a Non-Aqueous Fracturing Fluid for Coal Seam Gas Extraction.",52nd US Rock Mechanics/Geomechanics Symposium, American Rock Mechanics Association,United States of America,2018,
Sampath, K. H. S. M., Perera, M. S. A., & Stephan, S. K. ,".Optimization of Coal Seam Gas Recovery through Supercritical CO2 based Hydraulic Fracturing.",Infrastructure Engineering Postgraduate conference (IEPC),The 福利在线看 of Melbourne, Parkville, Australia,2017,
Sampath K.H.S.M., De Silva L.I.N.,".Effective applications of poker vibrator for compacting quarry dust as a ground improvement technique.",02nd International Conference on Engineering and Technology (ICET-2016),Colombo, Sri Lanka,2016,
Sampath K.H.S.M., De Silva L.I.N. and Perera M.S.A.,".Application of Poker Vibrator for Compacting Quarry Dust, International Conference on Geo-mechanics, Geo-energy and Geo-resources .",International Conference on Geo-mechanics, Geo-energy and Geo-resources (IC3G 鈥� 2016),Australia ,2016,
Keshani, K. I., Narasinghe, N. M. N. T., & Sampath, K. H. S. M. ,".The Effect of Lime and Cement on Rice Husk Ash-Based Peat Stabilization: A Sustainable Ground Improvement Technique.",Indian Geotechnical Journal,,2025
Sathsarani, H.B.S., Sampath, K.H.S.M., Ranathunga, A.S. ,".Utilization of fly ash-based geopolymer for well cement during CO2 sequestration: A comprehensive review and a meta-analysis.",Gas Science and Engineering,113,2023
Ahamed, M.A.A., Perera, M.S.A., Jay, R.B., Matthai, S.K., Ranjith, P.G., Dong-yin, Li, Sampath, K.H.S.M.,".Investigating the proppant damage mechanisms expected in a propped coal fracture and its effect on fracture flow.",Journal of Petroleum Science and Engineering,198,2021
Sampath, K. H. S. M., Perera, M. S. A., Elsworth, D., Matthai, S. K., Ranjith, P. G., & Dong-yin, L. ,".Discrete fracture matrix modelling of fully-coupled CO2 flow鈥揇eformation processes in fractured coal.", International Journal of Rock Mechanics and Mining Sciences,138,2021
Sampath, K. H. S. M., Perera, M. S. A. ,".Modelling of Hydro-Mechanical alterations in Fractured Coal caused by stepwise CO2 injection.",Geotechnical Journal, SLGS,8(1),2021
Sampath K. H. S. M., Perera M. S. A., Matthai S. K., Ranjith P. G., Li D. Y.,".Modelling of fully-coupled CO2 diffusion and adsorption-induced coal matrix swelling.",Fuel,262,2020
Sampath K. H. S. M., Sin I., Perera M. S. A., Matthai S. K., Ranjith P. G., and Li Y. ,".Effect of supercritical-CO2 interaction time on the alterations in coal pore structure.",Journal of Natural Gas Science and Engineering,76,2020
Sampath K. H. S. M., Ranjith P. G., Perera M. S. A,".A Comprehensive Review of Structural Alterations in CO2?Interacted Coal: Insights into CO2 Sequestration in Coal.",Energy Fuels ,34,2020
Perera M. S. A., Sampath K. H. S. M.,".Modelling of free and adsorbed CO2-induced mechanical property alterations in coal.",International Journal of Coal Geology,217,2019
Sampath, K. H. S. M., Perera, M. S. A., Elsworth, D., Ranjith, P. G., Matthai, S. K., Rathnaweera, T., & Zhang, G. ,".Effect of coal maturity on CO2-based hydraulic fracturing process in coal seam gas reservoirs.",Fuel,236,2019
Sampath K.H.S.M., Perera M.S.A., Ranjith P.G., Matthai S.K.,".CO2 interaction induced mechanical characteristics alterations in coal: A review.",International Journal of Coal Geology,204,2019
Sampath K. H. S. M., Perera M. S. A., Li D.Y., Ranjith P. G., Matthai, S. K. ,".Evaluation of the mechanical behaviour of brine+CO2 saturated brown coal under mono-cyclic uni-axial compression.",Engineering Geology,263,2019
Sampath K.H.S.M., Perera M.S.A., Ranjith P.G., Matthai S.K., Dong yin L. ,".Qualitative and quantitative evaluation of the alteration of micro-fracture characteristics of supercritical CO2-interacted coal.",The Journal of supercritical fluids,147,2019
Sampath, K. H. S. M., Perera, M. S. A., Li, D. Y., Ranjith, P. G., & Matthai, S. K. ,".Characterization of dynamic mechanical alterations of supercritical CO2-interacted coal through gamma-ray attenuation, ultrasonic and X-ray computed tomography techniques.",Journal of Petroleum Science and Engineering,174,2019
Sampath K.H.S.M., Perera M.S.A., Ranjith P.G., Matthai S.K., Tao X., Wu B.K. ,".Application of neural networks and fuzzy systems for the intelligent prediction of CO2-induced strength alteration of coal.",Measurement ,135,2019
Sampath, K. H. S. M., Perera, M. S. A., & Ranjith, P. G.,".Theoretical overview of hydraulic fracturing break-down pressure.",Journal of Natural Gas Science and Engineering,58,2018
Sampath, K. H. S. M., Perera, M. S. A., Elsworth, D., Ranjith, P. G., Matthai, S. K., & Rathnaweera, T. ,".Experimental investigation on the mechanical behaviour of Victorian brown coal under brine saturation.",Energy & Fuels,32(5),2018
Perera, M.S.A., Sampath, K.H.S.M., Ranjith, P.G., & Rathnaweera, T.D.,".Effects of Pore Fluid Chemistry and Saturation Degree on the Fracability of Australian Warwick Siltstone.",Energies,11(10),2018
Zhang, G., Ranjith, P.G., Perera, M.S.A., Haque, A., Choi, X., & Sampath, K.H.S.M.,".Characterisation of coal porosity and permeability evolution by demineralisation using image processing techniques: A micro-computed tomography study.",Journal of Natural Gas Science and Engineering,56,2018
Sampath, K. H. S. M., Perera, M. S. A., Ranjith, P. G., Matthai, S. K., Rathnaweera, T., Zhang, G., & Tao, X. ,".CH4-CO2 gas exchange and supercritical CO2 based hydraulic fracturing as CBM production-accelerating techniques: A review.",Journal of CO2 Utilization,22,2017
Sampath K.H.S.M., De Silva L.I.N., and Perera M.S.A. ,".Effective usage of poker vibrator for compacting quarry dust: an application to ground improvement in shallow foundation design.",Geomechanics and Geophysics for Geo-Energy and Geo-Resources,3(1),2017
Bandara, W. W., Mampearachchi, W. K., & Sampath, K. H. S. M.,".Cement Stabilized Soil as a Road Base Material for use in Sri Lankan Roads.",Engineer: Journal of the Institution of Engineers, Sri Lanka,50(1),2017