Transforming decision making for rockfall hazard assessment. The aim is to transform conventional approaches to rockfall hazard prediction and mitigation. The management of risks posed by rockfall in Australia currently comes at significant cost and is suboptimal; predicted environmental changes are likely to worsen these hazards. Rockfall mechanics, remote sensing, and data-driven modelling will be combined with advanced visual technologies to deliver a novel, rapid, and reliable augmented real ....Transforming decision making for rockfall hazard assessment. The aim is to transform conventional approaches to rockfall hazard prediction and mitigation. The management of risks posed by rockfall in Australia currently comes at significant cost and is suboptimal; predicted environmental changes are likely to worsen these hazards. Rockfall mechanics, remote sensing, and data-driven modelling will be combined with advanced visual technologies to deliver a novel, rapid, and reliable augmented reality based rockfall hazard assessment tool. The outcomes are expected to streamline prediction, assessment, and mitigation – supporting practitioners and governments to proactively assess triggering conditions, evaluate risk, and apply robust solutions to improve safety, with substantial economic savings.Read moreRead less
Laboratory and Theoretical Investigation of Soft Clay Behaviour under Cyclic Loading Stabilised by Prefabricated Vertical Drains. Coastal Australia is under increasing pressure from rapid population growth that requires continual capital investment in civil infrastructure such as road and rail links, ports and buildings. Many regions have soft compressible clays that present challenges for infrastructure design and construction. The use of prefabricated vertical drains (PVDs) in stabilising soil ....Laboratory and Theoretical Investigation of Soft Clay Behaviour under Cyclic Loading Stabilised by Prefabricated Vertical Drains. Coastal Australia is under increasing pressure from rapid population growth that requires continual capital investment in civil infrastructure such as road and rail links, ports and buildings. Many regions have soft compressible clays that present challenges for infrastructure design and construction. The use of prefabricated vertical drains (PVDs) in stabilising soil can reduce construction and maintenance costs, and increased soil strength will enhance the performance of infrastructure. In this project, the soil behaviour under cyclic loads stabilised by PVDs will be thoroughly investigated. Extensive laboratory testing will result in more efficient design and construction on soft soils, including roads, railways and airport runways.Read moreRead less
NUMERICAL MODELLING OF LOCAL SCOUR BELOW OFFSHORE PIPELINES. This research will develop a numerical model for time-dependent local scour below offshore pipelines subject to steady currents and waves. No such model is currently available in the offshore oil and gas industry and the research community. Instead, design engineers have to use simple empirical formulae to estimate the scour potential in complex environmental conditions. This may result in unsafe or over conservative designs. Therefore ....NUMERICAL MODELLING OF LOCAL SCOUR BELOW OFFSHORE PIPELINES. This research will develop a numerical model for time-dependent local scour below offshore pipelines subject to steady currents and waves. No such model is currently available in the offshore oil and gas industry and the research community. Instead, design engineers have to use simple empirical formulae to estimate the scour potential in complex environmental conditions. This may result in unsafe or over conservative designs. Therefore the model developed in this project will have direct impact on the stability design of offshore pipelines. The design will be safer and more reliable, and improved design may lead to a reduced cost.Read moreRead less
Energy dissipation and vibration-assisted self-healing in structures with topological interlocking. High dissipation of impact and vibration energy, vibration-assisted self-healing, high tolerance to block failure and an ease of assembly/disassembly make topological interlocking structures ideal for safety barriers, protective shields and floating structures. The theory of these phenomena will open a way for more efficient protection of infrastructure against both natural and human perpetrated i ....Energy dissipation and vibration-assisted self-healing in structures with topological interlocking. High dissipation of impact and vibration energy, vibration-assisted self-healing, high tolerance to block failure and an ease of assembly/disassembly make topological interlocking structures ideal for safety barriers, protective shields and floating structures. The theory of these phenomena will open a way for more efficient protection of infrastructure against both natural and human perpetrated impacts and for developing new methodology in constructing mobile marine bases. This constitutes the main benefit of the project. Furthermore, understanding the resonance structure of travelling waves will improve methods of non-destructive monitoring by back analysing spectral signatures of the waves.Read moreRead less
Efficient geotechnical risk management of rock cliffs . Extreme events will significantly impact the severity of Australian rock cliff hazards in the coming years affecting infrastructure and public safety along major corridors and popular paths. Accurate prediction of their effect is crucial to analyse the associated rockfall risks and design mitigation measures. The project aims to provide a novel approach for the quantification of the rockfall risk by combining proximity remote sensing soluti ....Efficient geotechnical risk management of rock cliffs . Extreme events will significantly impact the severity of Australian rock cliff hazards in the coming years affecting infrastructure and public safety along major corridors and popular paths. Accurate prediction of their effect is crucial to analyse the associated rockfall risks and design mitigation measures. The project aims to provide a novel approach for the quantification of the rockfall risk by combining proximity remote sensing solutions, probabilistic models and quantitative risk analysis. The primary benefits lie in the ability to optimize protection reliability and costs and to deliver a rigorous method to support practitioners, government and emergency agencies to manage the risk, improve safety and properly allocate resources.Read moreRead less
Long term stabilisation of expansive soils by polymer addition. Expansive soils can cause serious damage to infrastructure. The project aims to study the feasibility of reducing the long term swelling potential of expansive soils by polymer addition. The project involves advanced experimental testing to identify suitable candidates amongst different polymers and to test their long term performance.
Vortex and force characteristics of inclined offshore cylindrical structures in oscillatory flows. Understanding the effects of the inclination angle of an offshore cylindrical structure on hydrodynamic loads in waves is vitally important for safety and longevity of these structures. The project outcomes will be invaluable in minimising the chances of structural failure and enhancing Australia's capabilities in hydrodynamic research.
Local scour below offshore pipelines on calcareous sediments. This project will improve predictions of erosion around subsea structures in calcareous sediment, allowing potential pipeline self-burial. This will reduce the considerable costs currently spent on pipeline stabilisation and increase the viability of Australia's offshore resources and the competitiveness of the Australian oil and gas industry.
Bed shear stress on beach sediment and coastal structures under wave run-up. The aim of this work is to obtain critical new information about the way waves interact with the coast and the damage they can cause to beaches and coastal protection structures. This new data will provide the basis for improved predictions of coastal erosion and better coastal engineering design in the face of sea-level rise and climate change.
Predicting scour and scour-induced settlement of subsea infrastructure. This project aims to develop improved predictions and understanding of the potential and extent of scour and scour-induced settlement of subsea infrastructure on mobile seabeds. This is expected to enable scour and settlement to be accounted for directly in engineering stability and serviceability design, overturning current practice which ignores both effects on the basis of using scour protection and costly maintenance and ....Predicting scour and scour-induced settlement of subsea infrastructure. This project aims to develop improved predictions and understanding of the potential and extent of scour and scour-induced settlement of subsea infrastructure on mobile seabeds. This is expected to enable scour and settlement to be accounted for directly in engineering stability and serviceability design, overturning current practice which ignores both effects on the basis of using scour protection and costly maintenance and remediation. Development of accurate predictions is expected to be achieved through physical model testing, numerical modelling and analysis of field data. Predictions should improve subsea reliability and lead to omission of scour protection in some situations, increasing international competitiveness of our offshore oil and gas industry.Read moreRead less