Bayesian back analysis for settlement prediction of soft soils. The settlement of road embankments built on soft soils can take many years which has created additional challenges for road design and construction. Despite many years of experience with the Pacific Highway Upgrade, industry partners have seen many examples where embankments have settled more than expected during construction and after road opening. This causes potential delay delivering projects, ponding, potential aquaplaning and ....Bayesian back analysis for settlement prediction of soft soils. The settlement of road embankments built on soft soils can take many years which has created additional challenges for road design and construction. Despite many years of experience with the Pacific Highway Upgrade, industry partners have seen many examples where embankments have settled more than expected during construction and after road opening. This causes potential delay delivering projects, ponding, potential aquaplaning and unexpected maintenance. This project aims at developing useful tools for industry to better predict the settlement of embankment built on soft soils. The intended outcomes can help to increase the safety level of road transportation system of Australia, reduce construction and maintenance costs.Read moreRead less
Direct geothermal energy: Reducing the rural industries’ carbon footprint. Direct geothermal energy: Reducing the rural industries’ carbon footprint. This project aims to design poultry brooder houses using geothermal technology. Reducing greenhouse gas emissions is a global priority. The lack of natural gas in rural areas and brooder houses’ heating and cooling needs make geothermal ideal. Direct geothermal systems use shallow ground both as a heat source and as a heat sink for cooling, using h ....Direct geothermal energy: Reducing the rural industries’ carbon footprint. Direct geothermal energy: Reducing the rural industries’ carbon footprint. This project aims to design poultry brooder houses using geothermal technology. Reducing greenhouse gas emissions is a global priority. The lack of natural gas in rural areas and brooder houses’ heating and cooling needs make geothermal ideal. Direct geothermal systems use shallow ground both as a heat source and as a heat sink for cooling, using heat pumps. Their application to poultry brooder houses could reduce electricity consumption by up to 75% and thus greenhouse gas emissions, since 91% of electricity comes from fossil fuels in Australia; minimise the need for expensive bottled gas heating; reduce the levels of ammonia emissions; and increase farm productivity.Read moreRead less
Microstructure-Based Computational Homogenization of Geomaterials. This project seeks to establish a basis for virtual testing of materials. This type of non-destructive testing has numerous applications of obvious benefit to society and will contribute to the continued growth and development of a large number of industries in Australia and worldwide. The methods developed will allow for cheaper, faster, and more accurate testing of materials. The outcomes of the project can find direct applicat ....Microstructure-Based Computational Homogenization of Geomaterials. This project seeks to establish a basis for virtual testing of materials. This type of non-destructive testing has numerous applications of obvious benefit to society and will contribute to the continued growth and development of a large number of industries in Australia and worldwide. The methods developed will allow for cheaper, faster, and more accurate testing of materials. The outcomes of the project can find direct application in civil engineering as well as in environmental, mining and petroleum engineering which together make up a significant portion of the nation's industry.Read moreRead less
Designing the next generation of geosynthetic liner systems . The project aims to improve the effectiveness of geosynthetic liner systems to contain emerging contaminants such as per-and poly-fluoroalkyl substances (PFASs) for better protection of Australian groundwater resources. The project expects to experimentally validate theory to improve predictive models for performance of geosynthetic liner systems. Expected outcomes include new and updated design guidelines for effective environmental ....Designing the next generation of geosynthetic liner systems . The project aims to improve the effectiveness of geosynthetic liner systems to contain emerging contaminants such as per-and poly-fluoroalkyl substances (PFASs) for better protection of Australian groundwater resources. The project expects to experimentally validate theory to improve predictive models for performance of geosynthetic liner systems. Expected outcomes include new and updated design guidelines for effective environmental protection against PFASs and establishment of new approaches for predicting functional containment lifetimes of liner systems. These outcomes are expected to benefit the waste and remediation industries by influencing next-generation design regulations to ensure long-term environmental protection from PFAS.Read moreRead less
Non-differentiable Energy Minimisation For Modelling Fractured Porous Media. This project is aimed at advancing theoretical, computational and experimental bases for the fracturing of geomaterials, and providing scientists and engineers with much needed predictive tools for quantitative assessment of the responses. By incorporating previously neglected aspects such as energy minimisation, advanced constitutive modelling, and non-planar interacting fracture growth, confidence in the design and pl ....Non-differentiable Energy Minimisation For Modelling Fractured Porous Media. This project is aimed at advancing theoretical, computational and experimental bases for the fracturing of geomaterials, and providing scientists and engineers with much needed predictive tools for quantitative assessment of the responses. By incorporating previously neglected aspects such as energy minimisation, advanced constitutive modelling, and non-planar interacting fracture growth, confidence in the design and planning of engineering processes in fractured porous media will be increased to the point that costly over/under designs are avoided. Through the use of the tools developed, it will be possible to detect weaknesses in the design, assess the impact and implement effective measures to improve performance.Read moreRead less
Erosion processes in soils across scales. This project aims to develop a monitoring tool for predicting the evolution of internal erosion in dams based on innovative electromagnetic observation methods. Internal erosion is an insidious process occurring in the obscurity of the soil’s pore system until its consequences become visible and threaten the stability of the dams. These water retaining structures are vital for the future water and energy supply for our society and their failure can be ca ....Erosion processes in soils across scales. This project aims to develop a monitoring tool for predicting the evolution of internal erosion in dams based on innovative electromagnetic observation methods. Internal erosion is an insidious process occurring in the obscurity of the soil’s pore system until its consequences become visible and threaten the stability of the dams. These water retaining structures are vital for the future water and energy supply for our society and their failure can be catastrophic. By establishing an improved understanding of internal erosion as a sequence of processes on various scales, from the onset of erosion until the failure of the structure, this project will place Australia at the forefront of dam safety assessment.Read moreRead less
Pile foundations in unsaturated soils: a mechanistic framework. This project will develop a mechanistic approach to pile foundation design in variably saturated soils through integrated expertise in the fields of unsaturated soil mechanics, material nonlinearity, numerical modelling, limit analysis and experimental investigation. It will achieve a rigorous understanding of pile behaviour in unsaturated
soils subjected to monotonic loading through a comprehensive program of scaled laboratory test ....Pile foundations in unsaturated soils: a mechanistic framework. This project will develop a mechanistic approach to pile foundation design in variably saturated soils through integrated expertise in the fields of unsaturated soil mechanics, material nonlinearity, numerical modelling, limit analysis and experimental investigation. It will achieve a rigorous understanding of pile behaviour in unsaturated
soils subjected to monotonic loading through a comprehensive program of scaled laboratory testing, numerical and theoretical analyses. The models, theories, mechanics and predictive tools arising from this research will have direct and immediate impact on the planning, design, construction and management of many types of infrastructure involving pile foundations in industrial and residential developments.Read moreRead less
Dynamic soil structure interaction. The aim of this project is to undertake a study of an important class of geotechnical problems in which systems composed of soil, structure and pore water are subjected to dynamic or impact loading. The outcomes will include safer and more efficient methods for designing geotechnical structures subjected to dynamic loading.
Response of Vertical Drains in Soft Subgrade under Cyclic Rail Loading. Soft formations (subgrade) can become unstable when subjected to heavy and repeated (cyclic) train loading. This project aims to investigate the cause and mechanisms of undrained instability of soft subgrade soil beneath rail embankments, and to assess the effectiveness of prefabricated vertical drains (PVDs) in stabilising such soils. The role of PVDs to enhance track performance will be quantified via rigorous mathematical ....Response of Vertical Drains in Soft Subgrade under Cyclic Rail Loading. Soft formations (subgrade) can become unstable when subjected to heavy and repeated (cyclic) train loading. This project aims to investigate the cause and mechanisms of undrained instability of soft subgrade soil beneath rail embankments, and to assess the effectiveness of prefabricated vertical drains (PVDs) in stabilising such soils. The role of PVDs to enhance track performance will be quantified via rigorous mathematical techniques complementing a computer-based numerical model, which can be validated by laboratory and field data. It will deliver tangible outcomes for accurately predicting the long-term settlements in soft foundations over prolonged train loading while extending the life span of modern railroad infrastructure.Read moreRead less