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
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
Thin-walled Structures Subjected to Impact and Blast Loading. Terrorist attacks have cost Australians much human grief and billions of dollars. Containing the consequences of a blast or impact is crucial to survival and restricting damage to critical civilian/defence infrastructure. Thin-walled structures are used extensively in such infrastructure. There is a lack of knowledge about their behaviour when subjected to impulse and blast loads. The investigators will establish the most economical m ....Thin-walled Structures Subjected to Impact and Blast Loading. Terrorist attacks have cost Australians much human grief and billions of dollars. Containing the consequences of a blast or impact is crucial to survival and restricting damage to critical civilian/defence infrastructure. Thin-walled structures are used extensively in such infrastructure. There is a lack of knowledge about their behaviour when subjected to impulse and blast loads. The investigators will establish the most economical means of designing passive blast protection into thin-walled structures and hence, Australia's critical infrastructure. This knowledge will be transferred into design standards and Australia's limited defence resources.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
Bottom-up multiscale modelling of expansive soils in natural environments . Expansive soils, highly sensitive to the environment, undergo dramatic strength and volume changes. This project aims to advance our understanding of expansive soils under different temperatures, hydraulic conditions, mechanical loads, and aqueous salinities. The project expects to use a combination of multidisciplinary knowledge, multiscale experiments and numerical simulations. The outcomes are a new multiscale model a ....Bottom-up multiscale modelling of expansive soils in natural environments . Expansive soils, highly sensitive to the environment, undergo dramatic strength and volume changes. This project aims to advance our understanding of expansive soils under different temperatures, hydraulic conditions, mechanical loads, and aqueous salinities. The project expects to use a combination of multidisciplinary knowledge, multiscale experiments and numerical simulations. The outcomes are a new multiscale model and advanced analysis/design tool for evaluating the performance of expansive soils under different conditions. The outcomes should provide the efficient way to mitigate the significant damage caused to infrastructure by expansive soils and facilitate the application of expansive soil products in waste disposal systems.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.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE180100101
Funder
Australian Research Council
Funding Amount
$744,697.00
Summary
New generation facility for impact testing. This project aims to develop a new generation, national-impact testing facility to study the impact response of civil and mechanical structures and components. This project expects to seek simultaneous, realistic impact scenarios with very high velocities, which were previously impossible. This will enhance the capability for innovative research on real-time behaviour of components/systems under high amplitude impacts to augment their protection throug ....New generation facility for impact testing. This project aims to develop a new generation, national-impact testing facility to study the impact response of civil and mechanical structures and components. This project expects to seek simultaneous, realistic impact scenarios with very high velocities, which were previously impossible. This will enhance the capability for innovative research on real-time behaviour of components/systems under high amplitude impacts to augment their protection through advanced materials. This project is essential for research on rational design philosophies and effective retrofitting of high-risk buildings, infrastructure and armoured vehicles. Benefits include the saving of lives and property through new knowledge from credible impact testing.Read moreRead less
Optimisation of shallow geothermal systems for Australian schools. This project aims to increase energy efficiency and reduce greenhouse gas emissions by optimising shallow geothermal systems in Australian schools. Shallow geothermal systems use the ground as a heat source and sink for heating and cooling. Their application to schools has the potential to harness energy from untapped resources such as sport grounds, reduce energy consumption by up to 75% and increase comfort and productivity of ....Optimisation of shallow geothermal systems for Australian schools. This project aims to increase energy efficiency and reduce greenhouse gas emissions by optimising shallow geothermal systems in Australian schools. Shallow geothermal systems use the ground as a heat source and sink for heating and cooling. Their application to schools has the potential to harness energy from untapped resources such as sport grounds, reduce energy consumption by up to 75% and increase comfort and productivity of our children at school. An expected outcome of this project is to create a full scale physical model along advanced optimisation models which will allow better understanding of energy efficiency gains, and lead towards improving geothermal design techniques tailored to educational buildings.Read moreRead less
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