Crustal fault system dynamics and earthquake prediction. The greatest challenge in earthquake science is prediction. Yet this possibility remains elusive. However, recent advances using an innovative numerical simulation model provided the first clear evidence for an underlying physical mechanism for earthquake forecasting, and observational studies have recently identified two independent precursors suggesting that this mechanism operates in the crust. The proposed project will use advanced sim ....Crustal fault system dynamics and earthquake prediction. The greatest challenge in earthquake science is prediction. Yet this possibility remains elusive. However, recent advances using an innovative numerical simulation model provided the first clear evidence for an underlying physical mechanism for earthquake forecasting, and observational studies have recently identified two independent precursors suggesting that this mechanism operates in the crust. The proposed project will use advanced simulation models and an innovative, multidisciplinary approach to obtain an improved understanding of crustal fault system dynamics with the aim of resolving the earthquake prediction question and progressing towards the scientific underpinning needed for intermediate-term earthquake forecasting.Read moreRead less
From crust to core: probing the heterogeneity of the Earth with seismic arrays. Seismic array deployments will be used for a variety of studies including tomographic mapping of upper mantle structure, coda analysis for crustal properties and delineation of deeper Earth structure. The high resolution information on crustal and upper mantle structure will provide important detail on the building blocks of the Australian plate at depth. This class of information helps to refine our understanding o ....From crust to core: probing the heterogeneity of the Earth with seismic arrays. Seismic array deployments will be used for a variety of studies including tomographic mapping of upper mantle structure, coda analysis for crustal properties and delineation of deeper Earth structure. The high resolution information on crustal and upper mantle structure will provide important detail on the building blocks of the Australian plate at depth. This class of information helps to refine our understanding of the way that the Australian continent has been assembled with regard to the interaction of the crust and mantle and the emplacement of mineral resources.Read moreRead less
Collapse modelling of soft storey buildings. Soft storey buildings investigated in this research paper represent a large number of building stock in Australia, such as high density housing apartments and buildings occupied by organisations with a post disaster function such as hospitals and emergency services. The outcomes from the research will be of direct benefit to the insurance industry, owners of building stock, emergency planning organisations, building code committees and policy makers i ....Collapse modelling of soft storey buildings. Soft storey buildings investigated in this research paper represent a large number of building stock in Australia, such as high density housing apartments and buildings occupied by organisations with a post disaster function such as hospitals and emergency services. The outcomes from the research will be of direct benefit to the insurance industry, owners of building stock, emergency planning organisations, building code committees and policy makers involved in risk reduction strategies. Read moreRead less
Displacement Controlled Behaviour of Non-ductile Structural Walls in Regions of Lower Seismicity. Buildings supported by non-ductile structural walls investigated in this research represents the great majority of building stock in Australia, in both the commercial and high-density residential sectors and buildings occupied by organisations with a post-disaster function such as hospitals and emergency services. The outcomes from the research will be of direct benefit to the insurance industry, ow ....Displacement Controlled Behaviour of Non-ductile Structural Walls in Regions of Lower Seismicity. Buildings supported by non-ductile structural walls investigated in this research represents the great majority of building stock in Australia, in both the commercial and high-density residential sectors and buildings occupied by organisations with a post-disaster function such as hospitals and emergency services. The outcomes from the research will be of direct benefit to the insurance industry, owners of building stock, emergency planning organisations, building code committees and policy makers involved in risk reduction strategies.Read moreRead less
Seismic tomography using signal and noise: A new window into deep Earth. This project will combine traditional imaging techniques based on earthquake records, and state of the art ambient noise tomography, which exploits oceanic and atmospheric disturbances, to construct detailed models of the crust and upper mantle beneath southeast Australia. The national benefits of this research include: a vastly improved understanding of the deep architecture of the Australian Plate, and how it has evolved ....Seismic tomography using signal and noise: A new window into deep Earth. This project will combine traditional imaging techniques based on earthquake records, and state of the art ambient noise tomography, which exploits oceanic and atmospheric disturbances, to construct detailed models of the crust and upper mantle beneath southeast Australia. The national benefits of this research include: a vastly improved understanding of the deep architecture of the Australian Plate, and how it has evolved over time; a paradigm shift in the interpretation of seismic data, which will enhance Australia's reputation in the international scientific community; and important new constraints on the broad scale geology of prospective regions that host world class mineral deposits.Read moreRead less
Three-dimensional evolution of the Banda Arc: effects of the collision of the Indo-Australian plate with the active Banda volcanic arc. National benefits are associated with the advance of basic science by addressing fundamental tectonic problems on the geodynamics of convergent plate boundaries. In particular, the specific study area would provide a better understanding on the tectonic environment of Australia in the context of the Asia-Pacific region. In the future, outcomes of this research ....Three-dimensional evolution of the Banda Arc: effects of the collision of the Indo-Australian plate with the active Banda volcanic arc. National benefits are associated with the advance of basic science by addressing fundamental tectonic problems on the geodynamics of convergent plate boundaries. In particular, the specific study area would provide a better understanding on the tectonic environment of Australia in the context of the Asia-Pacific region. In the future, outcomes of this research could potentially be used to reconstruct the tectonic history of Australia using the Banda region as a modern analogue.Read moreRead less
Exploring deep Australia: 3-D imaging of the lithosphere beneath south-east Australia using multiple high density seismic arrays. The successful completion of this project will significantly improve our knowledge of the seismic structure of the Australian lithosphere, and hence improve our understanding of how the Australian continent came to be formed. In addition, the tomographic imaging methods that will be developed and applied to the individual and combined seismic arrays have a direct rele ....Exploring deep Australia: 3-D imaging of the lithosphere beneath south-east Australia using multiple high density seismic arrays. The successful completion of this project will significantly improve our knowledge of the seismic structure of the Australian lithosphere, and hence improve our understanding of how the Australian continent came to be formed. In addition, the tomographic imaging methods that will be developed and applied to the individual and combined seismic arrays have a direct relevance to the seismic imaging techniques used by the exploration industry. Finally, the creation of a combined dataset comprising records from ~300 stations will help keep Australia at the leading edge of observational seismology, as other countries (e.g. U.S.) begin to deploy very large seismic arrays.Read moreRead less
Micromechanical modelling of fault gouge dynamics: towards an improved fault constitutive relation. The human and economic costs of geological and other particulate media related problems in Australia are staggering. These include geological hazards (e.g. landslides and earthquakes; the Newcastle earthquake cost around $4 billion and 13 lives), to particulate processes prevalent in Australia's major export industries (e.g. coal export valued at $9.3 billion, iron ore at $3.8 billion, and wheat ....Micromechanical modelling of fault gouge dynamics: towards an improved fault constitutive relation. The human and economic costs of geological and other particulate media related problems in Australia are staggering. These include geological hazards (e.g. landslides and earthquakes; the Newcastle earthquake cost around $4 billion and 13 lives), to particulate processes prevalent in Australia's major export industries (e.g. coal export valued at $9.3 billion, iron ore at $3.8 billion, and wheat at $3.4 billion), to Australia's 810,000 km granular paved road network that costs around $5.5 million per day to maintain. The program will deliver new knowledge and advanced analytical and predictive modelling tools capable of fuelling breakthroughs in earthquake forecasting research and industrial innovations.
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Collapse assessment of reinforced concrete buildings in regions of lower seismicity. This research aims to develop a new displacement based (DB) method for regions of lower seismicity, using 'Displacement Controlled' phenomenon, to assess the risk of collapse and seismic performance of buildings. The project will investigate the system behaviour of buildings in Australia that are laterally supported by lightly reinforced concrete geometric walls, including both torsional and wall floor interacti ....Collapse assessment of reinforced concrete buildings in regions of lower seismicity. This research aims to develop a new displacement based (DB) method for regions of lower seismicity, using 'Displacement Controlled' phenomenon, to assess the risk of collapse and seismic performance of buildings. The project will investigate the system behaviour of buildings in Australia that are laterally supported by lightly reinforced concrete geometric walls, including both torsional and wall floor interaction effects. The new DB method could allow buildings in regions of lower seismicity to be designed for robustness, gravity and wind loading and then checked using displacement principles for seismic compliance, which will dramatically simplify and improve the current seismic design process.Read moreRead less
CRATON EDGES AND SUTURES IN THE AUSTRALIAN MANTLE. A major seismic experiment using recording of distant earthquakes will be used to provide images of 3-D structure in the Earth's crust and mantle along the length of the edge of the Precambrian Australian Shield and across the suture between the South and North Australian cratons within the Shield. Seismic structures derived from different classes of geodynamic models will be compared with seismic results derived from a variety of styles of dat ....CRATON EDGES AND SUTURES IN THE AUSTRALIAN MANTLE. A major seismic experiment using recording of distant earthquakes will be used to provide images of 3-D structure in the Earth's crust and mantle along the length of the edge of the Precambrian Australian Shield and across the suture between the South and North Australian cratons within the Shield. Seismic structures derived from different classes of geodynamic models will be compared with seismic results derived from a variety of styles of data interpretation, including seismic tomography. The experiment will improve understanding of the range of physical processes associated with rifting and building of continents.Read moreRead less