Wanniarachchige, Gnamani Pabasara

Overview

Dr Pabasara Wanniarachchige(W. G. P. Kumari) is a Lecturer in the School of Civil, Mining, and Environmental Engineering, University of Wollongong. She holds PhD in Geotechnical Engineering from Monash University. Her research interests include geomechanics, deep geothermal extraction, reservoir stimulation with conventional and unconventional techniques (hydraulic fracturing, non-water based fracturing, and rock fragmentation), unconventional gas extraction (gas hydrates, shale gas and coal seam gas), geological storage of hydrogen, mining, and industrial waste utilization of geotechnical applications. She has developed new techniques to simulate unconventional reservoirs, laboratory-scale hydraulic fracturing, rock-fluid interactions, and micro-mechanical characterization of reservoir rocks.

UGPN Workshop talk on Geothermal and Ocean Thermal Energy Conversion Technologies

Monash 3GDeep Research Group Collaborations
Research Projects at 3GDeep

Transport infrastructure construction using steel furnace slag

Research Areas

0905 - CIVIL ENGINEERING

Research Overview

- Geothermal extraction
- Reservoir stimulation (hydraulic fracturing, thermal fracturing, non-water-based fracturing, and rock fragmentation)
- Unconventional gas extraction (gas hydrates, shale gas and coal seam gas)
- Geological storage of hydrogen
- Soil stabilization techniques
- Industrial waste utilization for civil and geotechnical applications

Available as Research Supervisor

Available for Collaborative Projects

Member Of

Australian Geomechanics Society Member 2021 -
Engineers Australia Member 2021 -
3GDeep Research Group 2015 -

Selected Publications

Journal Article

Year	Title
2022	A Coupled X-Ray Imaging and Experimental Permeability Study of Propped Hydraulically Induced Fractures Published In Rock Mechanics and Rock Engineering
2022	A study of the short-term leaching behaviour of a modified expansive cement in groundwater for mining and mineral extraction Published In Process Safety and Environmental Protection
2022	Experimental and Numerical Investigation of the Flow Behaviour of Fractured Granite under Extreme Temperature and Pressure Conditions Published In SUSTAINABILITY
2022	Quantification of CO2 Replacement in Methane Gas Hydrates: A Molecular Dynamics Perspective Published In Journal of Natural Gas Science and Engineering
2022	The Influence of Confining Stresses on Formation Kinetics of Methane Gas Hydrates Published In Fuel
2021	Subsequent Alterations in Mechanical Properties of Methane Gas Hydrates Upon CO2 Gas Replacement: A Molecular Dynamics Perspective
2020	Guest editorial for the topical collection: sustainable development and utilization of geothermal systems Published In Geomechanics and Geophysics for Geo-Energy and Geo-Resources
2020	Hydraulic and thermal fracturing techniques for successful stimulation in unconventional geothermal energy recovery Published In Boletin Geologico y Minero
2019	An experimental study on tensile characteristics of granite rocks exposed to different high-temperature treatments Published In Geomechanics and Geophysics for Geo-Energy and Geo-Resources
2019	Influence of long-term operation of supercritical carbon dioxide based enhanced geothermal system on mineralogical and microstructurally-induced mechanical alteration of surrounding rock mass Published In Renewable Energy
2019	Sustainable development of enhanced geothermal systems based on geotechnical research – A review Published In Earth-Science Reviews
2019	Testing the frackability of granite using supercritical carbon dioxide: Insights into geothermal energy systems Published In Journal of CO2 Utilization
2018	An Influence of Thermally-Induced Micro-Cracking under Cooling Treatments: Mechanical Characteristics of Australian Granite Published In ENERGIES
2018	Experimental investigation of quenching effect on mechanical, microstructural and flow characteristics of reservoir rocks: Thermal stimulation method for geothermal energy extraction Published In Journal of Petroleum Science and Engineering
2018	Experimental investigation of thermomechanical behaviour of clay-rich sandstone at extreme temperatures followed by cooling treatments Published In International Journal of Rock Mechanics and Mining Sciences
2018	Hydraulic fracturing under high temperature and pressure conditions with micro CT applications: Geothermal energy from hot dry rocks Published In Fuel
2018	Thermally-induced mechanical behaviour of a single proppant under compression: Insights into the long-term integrity of hydraulic fracturing in geothermal reservoirs Published In Measurement: Journal of the International Measurement Confederation
2017	Mechanical behaviour of Australian Strathbogie granite under in-situ stress and temperature conditions: An application to geothermal energy extraction Published In Geothermics
2017	Temperature-dependent mechanical behaviour of Australian Strathbogie granite with different cooling treatments Published In Engineering Geology

Conference Paper

Year	Title
2022	Flow characteristics of hydraulically fractured granite rocks under high temperature Published In Resource operator's conference
2018	Flow behaviour of fractured geothermal reservoir rocks under in-situ stress and temperature conditions Published In Springer Series in Geomechanics and Geoengineering
2016	Investigation on temperature dependent mechanical behaviour of Australian granite Published In ISRM International Symposium - EUROCK 2016
2016	Investigation on temperature dependent mechanical behaviour of Australian granite Published In Rock Mechanics and Rock Engineering: From the Past to the Future

Other Research Activities

Partnership grant with Australian Steel Mill Services and ARC Research Hub for Australian Steel Innovation Co-investigator 2022 - 2025
UOW Advancement and Equity Grant Scheme for Research (AEGiS) 2022 Principal investigator 2022 - 2023
Australian Synchrotron Imaging and Medical Beamline - merit beamtime Principal investigator 2022
The University Global Partnership Network (UGPN) Research Collaboration Fund Principal investigator, UOW 2021 - 2022

Available as Research Supervisor

Potential Supervision Topics

- Energy pile foundation systems for residential and commercial applications
- Hydro-fracturing and other innovative reservoir stimulation techniques for geothermal reservoirs/ depleted and tight reservoirs
- Industrial/mining waste utilization for civil and geotechnical applications

Teaching Activities

CIVL 394 - Constrution Lecturer 2021 -
CIVL272 - Surveying Lecturer, Cordinator 2021 -
CIVL361 - Geomechanics Lecturer, Co-cordinator 2021 -
ENGG105 - Engineering Design for Sustainability Tutor 2021 -

Advisees

Graduate Advising Relationship

Degree	Research Title	Advisee
Master of Research - EIS	Experimental study on the Swell behavior of Steel Furnace Slag	Sunkara, Yeshwanth
Doctor of Philosophy	Non-conventional and eco-friendly approach for problematic soil stabilisation with special reference to rural road construction	Saju, Alex Malekudy

Education And Training

Bachelor of Science (First Class), University of Ruhuna, Civil and Environmental Engineering 2014
Ph.D. in Geotechnical Engineering, Monash University, Civil Engineering, Thesis title : Stimulation of Heat Extraction of Hot Dry Rocks 2018

Awards And Honors

Postgraduate Publication Award (PPA), conferred by Monash University, 2018
Postgraduate Travel Award, conferred by Monash Energy Materials and Systems Institute, Australia, 2017
Best Presentation Award, conferred by Civil Postgraduate Conference, Monash University, Australia, 2016

Teaching Overview

I am passionate about sharing my experience through tertiary education. I teach a wide range of subjects related to geotechnical engineering, construction and surveying and try to integrate my research and practical experience into the subjects wherever possible.
My teaching philosophy favours the project-based learning (PBL) approach, which requires students’ pro-active participation and knowledge sharing in a practice setting. This student-centred learning approach is implemented by integrating interactive lecture materials followed by discussions, tutorials, laboratory/field experiences, and group projects inspired by practical applications to improve students’ learning experiences.

Keywords

Geothermal, hydraulic fracturing, coupled processes, fracture permeability, thermal damage, rock micro-structure, energy piles, soil stabilization

Full Name

Gnamani Pabasara Kumari Wanniarachchige

Mailing Address

School of Civil, Mining, and Environmental Engineering,

Faculty of Engineering and Information Sciences,

University of Wollongong, Wollongong,

New South Wales

2500

Australia

Located In Facility

Building 4, Room 139

Orcid Id

http://orcid.org/0000-0002-3786-8212 (confirmed)

Web Of Science Researcher Id

U-1298-2019

Scopus Id

57191057376

Research Areas

0905 - CIVIL ENGINEERING

Research Overview

- Geothermal extraction
- Reservoir stimulation (hydraulic fracturing, thermal fracturing, non-water-based fracturing, and rock fragmentation)
- Unconventional gas extraction (gas hydrates, shale gas and coal seam gas)
- Geological storage of hydrogen
- Soil stabilization techniques
- Industrial waste utilization for civil and geotechnical applications

Member Of

Australian Geomechanics Society Member 2021 -
Engineers Australia Member 2021 -
3GDeep Research Group 2015 -

Selected Publications

Journal Article

Year	Title
2022	A Coupled X-Ray Imaging and Experimental Permeability Study of Propped Hydraulically Induced Fractures Published In Rock Mechanics and Rock Engineering
2022	A study of the short-term leaching behaviour of a modified expansive cement in groundwater for mining and mineral extraction Published In Process Safety and Environmental Protection
2022	Experimental and Numerical Investigation of the Flow Behaviour of Fractured Granite under Extreme Temperature and Pressure Conditions Published In SUSTAINABILITY
2022	Quantification of CO2 Replacement in Methane Gas Hydrates: A Molecular Dynamics Perspective Published In Journal of Natural Gas Science and Engineering
2022	The Influence of Confining Stresses on Formation Kinetics of Methane Gas Hydrates Published In Fuel
2021	Subsequent Alterations in Mechanical Properties of Methane Gas Hydrates Upon CO2 Gas Replacement: A Molecular Dynamics Perspective
2020	Guest editorial for the topical collection: sustainable development and utilization of geothermal systems Published In Geomechanics and Geophysics for Geo-Energy and Geo-Resources
2020	Hydraulic and thermal fracturing techniques for successful stimulation in unconventional geothermal energy recovery Published In Boletin Geologico y Minero
2019	An experimental study on tensile characteristics of granite rocks exposed to different high-temperature treatments Published In Geomechanics and Geophysics for Geo-Energy and Geo-Resources
2019	Influence of long-term operation of supercritical carbon dioxide based enhanced geothermal system on mineralogical and microstructurally-induced mechanical alteration of surrounding rock mass Published In Renewable Energy
2019	Sustainable development of enhanced geothermal systems based on geotechnical research – A review Published In Earth-Science Reviews
2019	Testing the frackability of granite using supercritical carbon dioxide: Insights into geothermal energy systems Published In Journal of CO2 Utilization
2018	An Influence of Thermally-Induced Micro-Cracking under Cooling Treatments: Mechanical Characteristics of Australian Granite Published In ENERGIES
2018	Experimental investigation of quenching effect on mechanical, microstructural and flow characteristics of reservoir rocks: Thermal stimulation method for geothermal energy extraction Published In Journal of Petroleum Science and Engineering
2018	Experimental investigation of thermomechanical behaviour of clay-rich sandstone at extreme temperatures followed by cooling treatments Published In International Journal of Rock Mechanics and Mining Sciences
2018	Hydraulic fracturing under high temperature and pressure conditions with micro CT applications: Geothermal energy from hot dry rocks Published In Fuel
2018	Thermally-induced mechanical behaviour of a single proppant under compression: Insights into the long-term integrity of hydraulic fracturing in geothermal reservoirs Published In Measurement: Journal of the International Measurement Confederation
2017	Mechanical behaviour of Australian Strathbogie granite under in-situ stress and temperature conditions: An application to geothermal energy extraction Published In Geothermics
2017	Temperature-dependent mechanical behaviour of Australian Strathbogie granite with different cooling treatments Published In Engineering Geology

Conference Paper

Year	Title
2022	Flow characteristics of hydraulically fractured granite rocks under high temperature Published In Resource operator's conference
2018	Flow behaviour of fractured geothermal reservoir rocks under in-situ stress and temperature conditions Published In Springer Series in Geomechanics and Geoengineering
2016	Investigation on temperature dependent mechanical behaviour of Australian granite Published In ISRM International Symposium - EUROCK 2016
2016	Investigation on temperature dependent mechanical behaviour of Australian granite Published In Rock Mechanics and Rock Engineering: From the Past to the Future

Other Research Activities

Partnership grant with Australian Steel Mill Services and ARC Research Hub for Australian Steel Innovation Co-investigator 2022 - 2025
UOW Advancement and Equity Grant Scheme for Research (AEGiS) 2022 Principal investigator 2022 - 2023
Australian Synchrotron Imaging and Medical Beamline - merit beamtime Principal investigator 2022
The University Global Partnership Network (UGPN) Research Collaboration Fund Principal investigator, UOW 2021 - 2022

Potential Supervision Topics

- Energy pile foundation systems for residential and commercial applications
- Hydro-fracturing and other innovative reservoir stimulation techniques for geothermal reservoirs/ depleted and tight reservoirs
- Industrial/mining waste utilization for civil and geotechnical applications

Teaching Activities

CIVL 394 - Constrution Lecturer 2021 -
CIVL272 - Surveying Lecturer, Cordinator 2021 -
CIVL361 - Geomechanics Lecturer, Co-cordinator 2021 -
ENGG105 - Engineering Design for Sustainability Tutor 2021 -

Advisees

Graduate Advising Relationship

Degree	Research Title	Advisee
Master of Research - EIS	Experimental study on the Swell behavior of Steel Furnace Slag	Sunkara, Yeshwanth
Doctor of Philosophy	Non-conventional and eco-friendly approach for problematic soil stabilisation with special reference to rural road construction	Saju, Alex Malekudy

Reviewer Of

IEEE Access (Journal)
Energies (Journal)
Geomechanics and Geophysics for Geo-Energy and Geo-Resources (Journal)
International Journal of Fracture (Journal)
Journal of Materials in Civil Engineering (Journal)
Sensors (Journal)

Contact Or Provider For Service

Academic Scholars Coordinator (CME) Access Service

Professional Service Activities

Australian Geotechnical Webinar Series Invited Talk 2021 -
Geomechanics and Geophysics for GeoEnergy and Geo-Resources Guest Editor, Special issue on Sustainable development and utilization of geothermal systems 2019 -
International Conference on Geo-mechanics, Geo-energy and Geo-resources Local Organizing Committee member 2016 -

Education And Training

Bachelor of Science (First Class), University of Ruhuna, Civil and Environmental Engineering 2014
Ph.D. in Geotechnical Engineering, Monash University, Civil Engineering, Thesis title : Stimulation of Heat Extraction of Hot Dry Rocks 2018

Awards And Honors

Postgraduate Publication Award (PPA), conferred by Monash University, 2018
Postgraduate Travel Award, conferred by Monash Energy Materials and Systems Institute, Australia, 2017
Best Presentation Award, conferred by Civil Postgraduate Conference, Monash University, Australia, 2016

Teaching Overview

I am passionate about sharing my experience through tertiary education. I teach a wide range of subjects related to geotechnical engineering, construction and surveying and try to integrate my research and practical experience into the subjects wherever possible.
My teaching philosophy favours the project-based learning (PBL) approach, which requires students’ pro-active participation and knowledge sharing in a practice setting. This student-centred learning approach is implemented by integrating interactive lecture materials followed by discussions, tutorials, laboratory/field experiences, and group projects inspired by practical applications to improve students’ learning experiences.

Keywords

Geothermal, hydraulic fracturing, coupled processes, fracture permeability, thermal damage, rock micro-structure, energy piles, soil stabilization

Full Name

Gnamani Pabasara Kumari Wanniarachchige

Mailing Address

School of Civil, Mining, and Environmental Engineering,

Faculty of Engineering and Information Sciences,

University of Wollongong, Wollongong,

New South Wales

2500

Australia

Located In Facility

Building 4, Room 139

Orcid Id

http://orcid.org/0000-0002-3786-8212 (confirmed)

Web Of Science Researcher Id

U-1298-2019

Scopus Id

57191057376

Overview

Overview

Research Areas

Research Overview

Available as Research Supervisor

Affiliation

Available for Collaborative Projects

Member Of

Publications

Selected Publications

Journal Article

Conference Paper

Funding

Other Research Activities

Supervision

Available as Research Supervisor

Potential Supervision Topics

Teaching Activities

Advisees

Graduate Advising Relationship

Service

Reviewer Of

Contact Or Provider For Service

Professional Service Activities

Background

Education And Training

Awards And Honors

Teaching Overview

Keywords

Contact

Full Name

Mailing Address

Located In Facility

Identity

Orcid Id

Web Of Science Researcher Id

Scopus Id

Overview

Research Areas

Research Overview

Affiliation

Member Of

Publications

Selected Publications

Journal Article

Conference Paper

Funding

Other Research Activities

Supervision

Potential Supervision Topics

Teaching Activities

Advisees

Graduate Advising Relationship

Service

Reviewer Of

Contact Or Provider For Service

Professional Service Activities

Background

Education And Training

Awards And Honors

Teaching Overview

Keywords

Contact

Full Name

Mailing Address

Located In Facility

Identity

Orcid Id

Web Of Science Researcher Id

Scopus Id

Visualisations

Research Areas