Geomechanics for surface and underground infrastructure
Through significant industry experience in both the civil and mining industries, our research and laboratory staff are focused on providing practical solutions to existing and future infrastructure problems. This includes laboratory and field projects related to tunnelling, slope stability, blasting, pre-conditioning and demonstrating novel mining methods.
Modelling and simulation of transport infrastructure systems
Designing, operating and managing transport infrastructure requires various modelling and simulation tools. Our group has expertise in a range of numerical modelling techniques and simulation methodologies, including statistical and econometric modelling, discrete element modelling, optimisation methods and traffic simulation of all levels (microscopic, mesoscopic, macroscopic and hybrid).
With strong partnerships with industry and government bodies, our group applies modelling and simulation techniques in various design and management aspects of transportation infrastructure systems, such as:
- road and pavement engineering
- traffic engineering
- transportation planning
- demand modelling
- congestion management
- soil engineering
- ground water and drainage management.
Multi-scale geomechanical modelling
Deakin has a strong numerical modelling team with significant experience in geomechanical simulation in all three, particle-based, finite element and discrete element codes. These codes are applied to solve complex non-linear geomechanical problems at multi-scales that range from particle (millimetres) to roads and tunnels (metres), slopes (hundreds of metres) and large-scale mines (kilometres). At each of these scales our researchers are able to couple geomechanical responses with dynamics (blasting) and hydrodynamics (water). This experience within the one research group is unique and provides confidence in research outcomes that are fit-for-purpose.
Our group specialises in road safety analysis and evaluation. We undertake cutting-edge research on the current and future challenges of transport systems, enabling efficient integration of technologies and concepts related to micro-mobility, shared road usage, safe system approach to road safety, and autonomous and connected vehicles.
Our research focuses on diverse areas of road safety, including:
- advanced statistical modelling of road crash and other safety data
- evaluating road safety treatments and programs
- behavioural analysis of road users
- roadwork traffic management and safety (work zone)
- surrogate safety analysis
- traffic conflict techniques
- vulnerable road users (VRUs) including cyclists, motorcyclists, and pedestrians.
With a strong focus on ‘translation of research to practice’, we provide active input in shaping the road safety policies and practices in Australia through partnerships with key transport agencies and industry bodies in the road safety area.
Road and rail infrastructure design and materials
The Australian transport industry is developing smarter and more sustainable infrastructure systems to address contemporary challenges such as increasing passengers and freight mobility, shortage of resources and risks from wastes/pollutions released from construction and transport activities. This Deakin transport infrastructure research group specialises in managing these challenges using cost-effective design processes, recycled materials, and smart transportation technologies.
We have expertise in advanced data analysis and computational techniques for monitoring and better predicting the behaviour of pavement systems, and road and railway infrastructure. We work with innovative pavement materials and mixes, taking advantage of the by-products from other industries to improve pavement sustainability. In collaboration with universities, research organisations and the industry, we aim to make roadway and railway infrastructure systems smarter, safer, more cost-effective and sustainable.
|Dr Susanga Costa||Geomechanics, unsaturated soil, numerical modelling of soil, fracture mechanics|
|Dr Ashim Debnath||Road safety, roadwork traffic management, cycling, vulnerable road users, smart transportation, statistical and econometric methods|
|Dr Kazem Ghabraie||Optimisation and design, numerical modelling, failure and damage mechanics, material characterisation|
|Dr Saba Gharehdash||Computational geomechanics, smoothed particle hydrodynamics, computational fluid dynamics modelling, explosion, tunnelling, rock mechanics|
|Dr Bidur Kafle||Structural dynamics, earthquake engineering, timber structures, structural health monitoring, pavement engineering|
|Dr Nhu Nguyen||Geomechanics, discrete element modelling, pavement engineering, computational plasticity|
|Professor Bre-Anne Sainsbury||Mining geomechanics, backfill, tunnelling, slope stability, 3D complex non-linear modelling|
|Professor Wendy Timms||Porous earth engineering, ground water, void water management, water and energy sustainability|
|Sadia Afroza||Examination of commonly omitted factors in pedestrian safety analysis|
|Ruksana Afroz||Investigating the relationships between neighbourhood design and active travel patterns|
|Abolfazl Baghbani||Application of machine learning to predict desiccation cracking in soil|
|Pratik Bhandari||Infrastructure systems|
|Amrit Ghimire||Modelling shared road space: Quantitative examination of the operational and safety characteristics of shared road space types in the UK and Australia|
|James Lett||Quantitative characterisation of a Caveability index in high-strength rock masses|
|Diane Mather||Investigation into the effects of rock mass modulus in the design of excavations|
|Philip John Pountney||The value of data and digitisation for government agencies|
|Abtin Farshi Homayoun Rooz||Investigating the unloading deformation characteristics of rock masses.|
|Milad Barzegar Touchahi||Advanced monitoring and analysis systems for subsurface monitoring of rock strata and groundwater systems|
|Sajani Dias Wickramaratne Siriwardene||Examination of associations between roadwork design and safety outcomes|
|Suzanne Walker||Understanding the relationships between community engagement approaches and transport infrastructure projects|
- Side Road Activated Speeds (SRAS) – Development of framework, survey design and analysis for short-term evaluation (2021–2022), Victoria Department of Transportation, $37,520
- Consideration of cracking damage to concrete tunnel lining system (2020–2021), Transurban, $74,361
- Numerical simulation research – caving geomechanics (2020), Palabora Mining Company, $32,740
- Advanced monitoring and analysis systems for subsurface monitoring of rock strata and groundwater system (2020–2023), Fluid Potential, $20,000
- High-speed rural intersections evaluation project (2020–2022), Victoria Department of Transportation
- Strategic transport modelling development (2019), Victoria Department of Transportation, $5500
- Large scale unconfined compression strength analysis of cemented rockfill (2018) Evolution Mining, $7743
- Infrastructure futures phase 1 (2018), $75,000
- Anisotropic rock mass modelling (2018–2020), Geotechnica, $52,740
- Intelligent water network flagship project (2017), AECOM, $26,000
- Waste Tyre Reinforcement of Construction Materials within Mining Operations (2021–2023), ARC TREMS HUB, $200,000
Side Road Activated Speeds (SRAS) – Development of framework, survey design and analysis for short-term evaluation (2021–2022), Victoria Department of Transportation
This Victoria Department of Transportation (DOT) funded project aims to evaluate the safety benefits of an innovative road safety treatment, namely the Side Road Activated Speed (SRAS) signs, at rural road intersections in Victoria. Using the SRAS system, vehicles on side roads of rural intersections are detected and accordingly the posted speed limits on the major roads of the intersections are temporarily dropped to manage collision risks and reduce crash severity at intersections, following the principles of the Safe System Approach to Road Safety. This project develops an innovative safety evaluation framework and analysis methodology for field data collection and safety analysis using advanced statistical analysis methods.
Anisotropic rock mass modelling (2018–2019)
Anisotropic rock masses, the behaviour of which is dominated by closely spaced planes of weakness, present particular difficulties in rock engineering analyses. The orientation of discontinuities relative to an excavation face has a significant influence on the behavioural response. At the present time, discontinuum modelling techniques provide the most rigorous analyses of the deformation and failure processes of anisotropic rock masses. However, due to their computational in-efficiency in large-scale problems (tunnel or cavern scale) they are limited. An efficient numerical framework has been developed to provide accurate results for a number of high-profile infrastructure projects that include the Melbourne Metro Tunnel and the Snowy 2.0 Cavern Complex.
ARC TREMS HUB (2021–2023)
Waste tyres pose a significant environmental problem. One of the challenges in using waste tyres is the cost of transport and processing into a crumbed or shredded form for re-integration into a recycled product. The current practice in underground cut and fill mines is to use cemented waste rock fill (CRF) to fill excavations to limit ground movement and increase resource recovery. The inclusion of tyre rubber (up to about 40%) into the CRF mix (T-CRF) is expected to increase flexural and shear strength and energy absorption capacity of the CRF product. T-CRF will provide additional benefits to mining operations through cost savings, increased mining efficiency and contribute to solving an important environmental problem.
For more information about our research, please contact Dr Ashim Debnath.
If you're interested in undertaking research studies with us, please contact a member of our team listed above to discuss a potential topic of interest. You can also read our information about being a research degree student at Deakin.