The response of beams subjected to axial load and lateral soil movements. Beams (piles, soil nails, and pipelines) are not only subjected to axial (vertical, axial and longitudinal)loading, but often withstand simultaneous lateral loading, due to either explicit structural loads, or due to loads induced by movement of the soils in which they are founded. Bridge piles adjacent to an approach embankment are one example. This project will provide experimental evidence to assist with the estimation ....The response of beams subjected to axial load and lateral soil movements. Beams (piles, soil nails, and pipelines) are not only subjected to axial (vertical, axial and longitudinal)loading, but often withstand simultaneous lateral loading, due to either explicit structural loads, or due to loads induced by movement of the soils in which they are founded. Bridge piles adjacent to an approach embankment are one example. This project will provide experimental evidence to assist with the estimation of capacity, axial and shear resistance, the validation of unified solutions for beams subjected to simultaneous lateral soil movements and axial loads. Such experimental evidence and analytical solutions are not currently available. The evidence will also assist with solving a contradictory, existing design principle, which will lead to an economic and efficient design approach.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
Enhanced Analysis and Structural Design of Pavements - Virtual Laboratory for Advanced Pavement Design. The proposed research will lead to improved pavement engineering procedures, which will reduce the maintenance costs for future pavement projects, and will result in cost-effective and more reliable design of new pavements.
Direct geothermal energy: harnessing an emerging technology. To mitigate the impacts of climate change, the demand for renewable energy technologies with low greenhouse gas (GHG) emissions is rapidly becoming a global priority. Direct geothermal systems use shallow ground as a heat source and sink for heating and cooling buildings, using ground heat exchangers (GHEs) and heat pumps. Substituting common heating and cooling systems with geothermal ones can reduce energy consumption by up to 75 per ....Direct geothermal energy: harnessing an emerging technology. To mitigate the impacts of climate change, the demand for renewable energy technologies with low greenhouse gas (GHG) emissions is rapidly becoming a global priority. Direct geothermal systems use shallow ground as a heat source and sink for heating and cooling buildings, using ground heat exchangers (GHEs) and heat pumps. Substituting common heating and cooling systems with geothermal ones can reduce energy consumption by up to 75 per cent and thus greenhouse gas emissions, since 91 per cent of electricity comes from fossil fuels in Australia. This project aims to develop new full scale physical and numerical models which will allow studying the effects of GHE configuration and intermittent use on efficiency and which will lead towards improving the poor and scarce existing design techniques.Read moreRead less
A novel foundation to extend the operation of mobile structures into deeper water. Oil and gas is a key industry in Australia, contributing A$17 billion to the economy. However, with the large accessible reserves in shallower waters becoming exhausted, Australian oil and gas companies require new technologies to extend their capabilities. The research in this proposal addresses this concern, providing an extension of the operational depth range of mobile jack-up platforms from 120 to 200 m. This ....A novel foundation to extend the operation of mobile structures into deeper water. Oil and gas is a key industry in Australia, contributing A$17 billion to the economy. However, with the large accessible reserves in shallower waters becoming exhausted, Australian oil and gas companies require new technologies to extend their capabilities. The research in this proposal addresses this concern, providing an extension of the operational depth range of mobile jack-up platforms from 120 to 200 m. This creates the opportunity to develop the significant number of Australia's smaller gas fields that are currently uneconomical to exploit. The proposed project will contribute to the future competitiveness of Australia's oil and gas industry and ensuring energy supply for the sustained growth of the Australian economy.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
Thermo-hydro-mechanics of geosynthetic liners: from processes to prediction. This project aims to resolve the complex interactions affecting the long-term performance of geosynthetic liner systems under harsh environmental conditions for preventing groundwater contamination. Failures of waste containment lining systems result in millions of dollars remedial costs and high societal costs. The project expects to underpin the development of an experimentally-validated theory to predict the performa ....Thermo-hydro-mechanics of geosynthetic liners: from processes to prediction. This project aims to resolve the complex interactions affecting the long-term performance of geosynthetic liner systems under harsh environmental conditions for preventing groundwater contamination. Failures of waste containment lining systems result in millions of dollars remedial costs and high societal costs. The project expects to underpin the development of an experimentally-validated theory to predict the performance of geosynthetic liner systems at high temperatures. Expected outcomes of the project are the establishment of a new conceptual framework and providing new guidelines for the design of geosynthetic liner systems for environmental protection. These outcomes are expected to benefit the waste and mining industries by informing planning, decision makers, consultants and construction engineers with science-based information on new lining systems for landfills and mining and industry waste containment.Read moreRead less
Hydraulic durability of geosynthetic clay liners in steep slope sealing systems for landfills constructed in former quarries. Old quarries are increasingly used for the construction of landfills. The engineering challenge in constructing such landfills includes developing an appropriate lining system for the often steep sided quarry walls. The use of GCLs as part of the lining system can be a viable and a cost effective solution. However, this solution suffers from the lack of meaningful data on ....Hydraulic durability of geosynthetic clay liners in steep slope sealing systems for landfills constructed in former quarries. Old quarries are increasingly used for the construction of landfills. The engineering challenge in constructing such landfills includes developing an appropriate lining system for the often steep sided quarry walls. The use of GCLs as part of the lining system can be a viable and a cost effective solution. However, this solution suffers from the lack of meaningful data on their hydraulic durability in this particular situation. This proposal presents an original approach to investigate this durability under operating conditions typically encountered in steep sided quarries. This work is expected to provide benefits to waste containment efforts at national and international level.Read moreRead less
Settlement of municipal solid waste. The mechanisms governing municipal solid waste settlement are many and complex. There is a clear need to adopt a methodology to forecast the landfilling space based on high quality full scale data where composition, method of placement, compactive effort employed during placement of the waste, thickness of daily cover, stage filling and local moisture content are all recorded. This is the only sound scientific way forward to develop a predictive model that ....Settlement of municipal solid waste. The mechanisms governing municipal solid waste settlement are many and complex. There is a clear need to adopt a methodology to forecast the landfilling space based on high quality full scale data where composition, method of placement, compactive effort employed during placement of the waste, thickness of daily cover, stage filling and local moisture content are all recorded. This is the only sound scientific way forward to develop a predictive model that links settlement to these parameters. This project will contribute to developing such a methodology for the benefit of the Australian waste containment industry.Read moreRead less
Stabilization of railway subgrade by lime-flyash slurry injection. The rail network in Australia provides a major transport route for commuters as well as transportation of goods. The subgrade of railway track should provide adequate support for the overlying ballast and capping layers. Hence, a poor subgrade always results in track problems associated with uneven track, fouled ballast, and misalignment of the track. This project will investigate in detail the fundamental mechanisms and key para ....Stabilization of railway subgrade by lime-flyash slurry injection. The rail network in Australia provides a major transport route for commuters as well as transportation of goods. The subgrade of railway track should provide adequate support for the overlying ballast and capping layers. Hence, a poor subgrade always results in track problems associated with uneven track, fouled ballast, and misalignment of the track. This project will investigate in detail the fundamental mechanisms and key parameters involved in the improvement of subgrade soil by injecting lime-flyash slurry. This project will develop an improved design procedure for lime-flyash slurry injection in the field based on experimental and numerical modelling.Read moreRead less