Geotechnical characterisation of compacted ground based on passive ambient noise techniques. The proposed research will provide our local construction and mining industries with a much needed fast and low cost technology for geotechnical investigation of very large sites which is currently not available. The project will help steer Australia to the forefront of ambient noise research for geotechnical site investigation, in the characterisation of unsaturated compacted soil and in the determinati ....Geotechnical characterisation of compacted ground based on passive ambient noise techniques. The proposed research will provide our local construction and mining industries with a much needed fast and low cost technology for geotechnical investigation of very large sites which is currently not available. The project will help steer Australia to the forefront of ambient noise research for geotechnical site investigation, in the characterisation of unsaturated compacted soil and in the determination of dynamic site characteristics which are required for seismic risk assessment. Two postgraduate students will benefit from this research by receiving research training at the highest level and it will also pave the way for exporting the technology developed overseas, particularly to our near neighbours in Asia and the Pacific. Read moreRead less
Advancement of Vacuum Pressure Application via Prefabricated Vertical Drains for Stabilising Soft Ground. Coastal Australia is under ever increasing pressure from rapid population growth which requires continual capital investment in civil infrastructure, such as road and rail links and large buildings. Many regions have soft compressible clays that present challenges for infrastructure design and construction. The use of vacuum preloading, together with vertical drains for soft soil stabilisati ....Advancement of Vacuum Pressure Application via Prefabricated Vertical Drains for Stabilising Soft Ground. Coastal Australia is under ever increasing pressure from rapid population growth which requires continual capital investment in civil infrastructure, such as road and rail links and large buildings. Many regions have soft compressible clays that present challenges for infrastructure design and construction. The use of vacuum preloading, together with vertical drains for soft soil stabilisation, can reduce construction and maintenance costs, while the increased soil strength will enhance the stability of infrastructure. This project will deliver design guidelines and specifications of enhanced vacuum consolidation application, as well as improving industrial competitiveness and export earnings through increased technology transfer.Read moreRead less
Effectiveness of prefabricated vertical band drains (PVD) in the stabilisation os soft clays. Stabilisation of structures in low-lying coastal Australia is affected by excessive settlement, low bearing capacity, and high lateral displacement of soft clays upon loading. The use of prefabricated vertical drains (PVD) prior to main construction can ensure pre-compression of soft clays by rapid pore water pressure dissipation, thereby increasing the soil strength and minimising its post construction ....Effectiveness of prefabricated vertical band drains (PVD) in the stabilisation os soft clays. Stabilisation of structures in low-lying coastal Australia is affected by excessive settlement, low bearing capacity, and high lateral displacement of soft clays upon loading. The use of prefabricated vertical drains (PVD) prior to main construction can ensure pre-compression of soft clays by rapid pore water pressure dissipation, thereby increasing the soil strength and minimising its post construction deformation. The main goal is to fully understand the stabilising mechanisms of PVD in soft clay, and to minimise the unfavourable effects of soil disturbances (smear) during installation. Extensive laboratory and field studies plus computer modelling will result in innovative design concepts and enhanced construction practices.Read moreRead less
Performance Characteristics of an Innovative Structural System - Compound Curved Sandwich Shell Structure. An innovative structural system utilising sandwich panel technology and shell action has recently emerged. These aesthetically pleasing curved structures are durable and spacious with fast construction time. They have residential and commercial applications and have attracted considerable local and overseas interest. There are no definitive procedures for their analysis and design and thei ....Performance Characteristics of an Innovative Structural System - Compound Curved Sandwich Shell Structure. An innovative structural system utilising sandwich panel technology and shell action has recently emerged. These aesthetically pleasing curved structures are durable and spacious with fast construction time. They have residential and commercial applications and have attracted considerable local and overseas interest. There are no definitive procedures for their analysis and design and their behaviour is complex involving many variables such as sandwich layer interaction, shape, openings, structural action, etc. This project will generate fundamental knowledge on their behaviour over a range of properties and operating conditions and develop guidelines to ensure safe and economical design, bringing economic benefits to Australia.Read moreRead less
Optimisation of Road Network Maintenance Strategies for Life-Cycle Costs. The future of Tasmania and the nation as a competitive force in the international market is intimately linked to its transportation infrastructure network. The successful maintenance and performance of the road component is essential for an efficient and integrated system and minimisation of freight costs. The research proposes to develop a less empirical and phenomenological method of predicting the future performance of ....Optimisation of Road Network Maintenance Strategies for Life-Cycle Costs. The future of Tasmania and the nation as a competitive force in the international market is intimately linked to its transportation infrastructure network. The successful maintenance and performance of the road component is essential for an efficient and integrated system and minimisation of freight costs. The research proposes to develop a less empirical and phenomenological method of predicting the future performance of pavements, based on optimisation of maintenance strategies, by incorporating the use of probabilistic methods and Geographical Information Systems (GIS) into new Whole of Life Costing (WOLC) models.Read moreRead less
Study of Coupled Water-Gas-Sediment (three-phase) Flows through Jointed and Stratified Rock. Coupled Water-Gas-Sediment Flows through Rock Joints project outcomes are expected to surpass the current knowledge on ground/slope stability and water inundation, enhance engineering solutions of the associated problems and provide vital improvements to public safety. The research team will publish the research outcomes through peer-reviewed journals and conferences, nationally and internationally, rais ....Study of Coupled Water-Gas-Sediment (three-phase) Flows through Jointed and Stratified Rock. Coupled Water-Gas-Sediment Flows through Rock Joints project outcomes are expected to surpass the current knowledge on ground/slope stability and water inundation, enhance engineering solutions of the associated problems and provide vital improvements to public safety. The research team will publish the research outcomes through peer-reviewed journals and conferences, nationally and internationally, raising Australia’s scientific profile within the civil engineering and mining community. The Australasian Institute of Mining and Metallurgy and Institution of Engineers seminars will be organised to promote discussion with the practitioners while the Australian geotechnical community will gain expertise through the PhD program. Read moreRead less
Stabilisation of erodible and dispersive soils with natural wood processing by-products. Lignosulfonate is a by-product of paper and wood processing industry, which is an environmentally friendly organic compound with an immense potential for stabilising erodible and dispersive soils when mixed in small quantities. This project will deliver practical design guidelines and specifications for sustainable performance of road and rail embankments that are treated with lignosulfonates. Utilisation of ....Stabilisation of erodible and dispersive soils with natural wood processing by-products. Lignosulfonate is a by-product of paper and wood processing industry, which is an environmentally friendly organic compound with an immense potential for stabilising erodible and dispersive soils when mixed in small quantities. This project will deliver practical design guidelines and specifications for sustainable performance of road and rail embankments that are treated with lignosulfonates. Utilisation of lignosulfonates in soil stabilisation is not only cost-effective, but also has the benefit of eliminating a waste disposal problem. The proposed project will improve industrial competitiveness and Australia's export earnings through increased commercialisation and technology transfer in the region.Read moreRead less
High Strength Steel Protection Bollards. Terrorist attacks cost Australians much human grief and millions of dollars. Prevention of an attack is paramount. Passive road bollards are commonly used to stop a vehicle approaching and/or entering security sensitive infrastructure. Thin-walled tubes are used to manufacture such bollards. However there is a lack of knowledge about their behaviour, and in particular high strength alloy steel bollards, when subjected to impact loads. The investigators wi ....High Strength Steel Protection Bollards. Terrorist attacks cost Australians much human grief and millions of dollars. Prevention of an attack is paramount. Passive road bollards are commonly used to stop a vehicle approaching and/or entering security sensitive infrastructure. Thin-walled tubes are used to manufacture such bollards. However there is a lack of knowledge about their behaviour, and in particular high strength alloy steel bollards, when subjected to impact loads. The investigators will apply their extensive knowledge in thin-walled tubular structures to establish the most economical means of designing high strength bollards. This knowledge will be transferred into design standards and Australia's limited defence resources.Read moreRead less
Foundation remediation using resin injection. The aim of this research project is to explore the application of injected expanded polyurethane resins as a new option for the re-levelling and stabilisation of deflected foundations on reactive clay soils. It will identify the physical and behavioural characteristics of resin-injected reactive clay foundations, in the context of both shallow and deep injection, and will identify any limitations to the applicability of the approach. Based on detaile ....Foundation remediation using resin injection. The aim of this research project is to explore the application of injected expanded polyurethane resins as a new option for the re-levelling and stabilisation of deflected foundations on reactive clay soils. It will identify the physical and behavioural characteristics of resin-injected reactive clay foundations, in the context of both shallow and deep injection, and will identify any limitations to the applicability of the approach. Based on detailed laboratory and field testing, and advanced numerical modelling, the outcome will be the ability to confidently assess various foundation remediation strategies in reactive clay soils, and provide much needed design guidance to the geotechnical profession and building industry.Read moreRead less
Life Cycle Measures of Cost Effectiveness for 4 D CAD in Design and Construct Projects across Industry Sectors. The effective and efficient delivery of complex construction projects will be transformed by the increased application of virtual design and construction technologies, including 4D CAD. By combining a 3D computer model of a design with the time dimension of the construction schedule, 4D CAD enables risks and opportunities to be better managed during the design phase and hence avoid co ....Life Cycle Measures of Cost Effectiveness for 4 D CAD in Design and Construct Projects across Industry Sectors. The effective and efficient delivery of complex construction projects will be transformed by the increased application of virtual design and construction technologies, including 4D CAD. By combining a 3D computer model of a design with the time dimension of the construction schedule, 4D CAD enables risks and opportunities to be better managed during the design phase and hence avoid costly issues during construction. However this requires addition design costs which currently represent a barrier to the uptake of this transforming technology. This project will overcome this by developing a flexible framework that allows the benefits gained across the life cycle of a project through using 4D CAD to be set against the additional costs and thus make this emerging technology more attractive to industry. Significantly this research will be based on comparative cases studies across different industry sectors including civil, building, and process engineering.Read moreRead less