Investigation of Coupled Processes During Underground Coal Gasification. Coal values could be extracted directly from coal seams through underground coal gasification (UCG) without the need for mining. The practical application of UCG is restricted primarily by lack of satisfactory quantitative descriptions of the processes involved. The proposed study will address this critical issue through an intergated approach of computer modelling and its verification against real field trials.
The Influence of particle shape fragmentation and compaction on 3D hopper flow. According to world-leading material scientist Patrick Richard, "Granular materials are ubiquitous in nature and are the second-most manipulated material in industry (the first one is water)". Our research will produce massive three dimensional computer simulations predicting and analysing the influence of particle size and shape on the morphology of industrial and natural granular flows. The results will have directl ....The Influence of particle shape fragmentation and compaction on 3D hopper flow. According to world-leading material scientist Patrick Richard, "Granular materials are ubiquitous in nature and are the second-most manipulated material in industry (the first one is water)". Our research will produce massive three dimensional computer simulations predicting and analysing the influence of particle size and shape on the morphology of industrial and natural granular flows. The results will have directly and immediately relevant applications in a range of Australian industries, including mass mining and minerals processing and will further make a major contribution to understanding and modelling a variety of geo-hazards.
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Multi-scale modelling of particle breakage in grinding process. The minerals industry is the largest exporter in Australia, contributing approximately 40% of Australia's total exports. Grinding is one of basic operations in mineral processing to liberate valuables from the host rock. Grinding process, however, has very low efficiency and may account for 50% of the direct operating cost of a mineral processing plant. This project is to develop a novel, multi-scale model to investigate grinding at ....Multi-scale modelling of particle breakage in grinding process. The minerals industry is the largest exporter in Australia, contributing approximately 40% of Australia's total exports. Grinding is one of basic operations in mineral processing to liberate valuables from the host rock. Grinding process, however, has very low efficiency and may account for 50% of the direct operating cost of a mineral processing plant. This project is to develop a novel, multi-scale model to investigate grinding at both process and individual particle levels and to provide a more accurate prediction of grinding performance. This will result in improved control and design of grinding process with reduced energy consumption and mineral waste, which will be of immense economic and environmental benefit to Australia.Read moreRead less
Uncertainty and Risk Quantifying Optimistion for Open Pit Mine Design and Production Scheduling. Open pit mine design and production scheduling (OPDPS) deals with the management of cash flows in the order of hundreds of millions of dollars, and is a critical aspect of mining ventures. To enhance decision-making under conditions of uncertainty, this proposal aims to develop a new methodology for OPDPS based on mathematical and statistical techniques which model uncertainty in key parameters, geol ....Uncertainty and Risk Quantifying Optimistion for Open Pit Mine Design and Production Scheduling. Open pit mine design and production scheduling (OPDPS) deals with the management of cash flows in the order of hundreds of millions of dollars, and is a critical aspect of mining ventures. To enhance decision-making under conditions of uncertainty, this proposal aims to develop a new methodology for OPDPS based on mathematical and statistical techniques which model uncertainty in key parameters, geological, mining and market/cost and their effects on economic forecasts. The new formulation is founded on stochastic integer programming, and its integration with spatial stochastic simulations of geological attributes. Methods developed are computerised and tested in field studies.Read moreRead less
Using Mathematics to Maximize the Value of Open-Pit Mines. Mineral resources are one of Australia's greatest assets. Their effective management will bring substantial long-term benefits to the Australian economy. Planning the exploitation of a mineral resource is a highly complex task. Current methods are approximate, and do not fully consider two critical issues: (1) ore mined at different times must be blended to achieve saleable product and (2) resource markets may not evolve as predicted ....Using Mathematics to Maximize the Value of Open-Pit Mines. Mineral resources are one of Australia's greatest assets. Their effective management will bring substantial long-term benefits to the Australian economy. Planning the exploitation of a mineral resource is a highly complex task. Current methods are approximate, and do not fully consider two critical issues: (1) ore mined at different times must be blended to achieve saleable product and (2) resource markets may not evolve as predicted. In this project we shall develop creative mathematical solutions to maximise the expected net present value of mines with far greater accuracy, taking into account blending and the uncertain nature of future demand.Read moreRead less
The study and development of a 3D real-time stockpile management system. By successfully completing this project, the efficiency of existing infrastructure investments in industries involved in bulk material handling (inclusive of minerals, grain, sugar and woodchips) will be largely improved. This will allow such industries to contain costs and thus increase international competitiveness. Efficiencies gains (in these industries) to date have been in recover and processing with little attention ....The study and development of a 3D real-time stockpile management system. By successfully completing this project, the efficiency of existing infrastructure investments in industries involved in bulk material handling (inclusive of minerals, grain, sugar and woodchips) will be largely improved. This will allow such industries to contain costs and thus increase international competitiveness. Efficiencies gains (in these industries) to date have been in recover and processing with little attention to stockyard and movement within the stockyards. The industries sectors in which will receive the greatest benefits are in rural and remote Australia. There is also the ability of the system to be exported to overseas clients, particularly in the mining sector.Read moreRead less
A Mathematical Approach to Flexible Management of Open Pit Mines with Uncertain Geology and Unpredictable Demand. This project will create new mathematical algorithms to flexibly manage open pit mining projects. The development of strategic plans for mining operations is a highly complex task, based on incomplete geological information and uncertain future commodity demand. The smart mathematics we create will allow Australia to capitalise on upturns in international demand, while limiting unavo ....A Mathematical Approach to Flexible Management of Open Pit Mines with Uncertain Geology and Unpredictable Demand. This project will create new mathematical algorithms to flexibly manage open pit mining projects. The development of strategic plans for mining operations is a highly complex task, based on incomplete geological information and uncertain future commodity demand. The smart mathematics we create will allow Australia to capitalise on upturns in international demand, while limiting unavoidable negative outcomes, by flexibly adjusting the mining operation to prevailing geological and economic conditions. Australia's mineral exports are worth over $50b annually to the Australian economy. Our techniques will better manage Australia's mining projects and capture new, emerging markets, significantly impacting on Australia's balance of trade.Read moreRead less
Excavation Design and Sequencing in Highly Stressed Rock Masses. An increasingly large number of Australian underground mines are being operated in highly stressed rock mass conditions, where safe and economic mining is a real challenge due to rock mass instability. In the future, this problem will become more significant as extraction gets deeper with the discoveries of new deeper orebodies or the extension of current operations at depth. The aim of this research project is to provide the Austr ....Excavation Design and Sequencing in Highly Stressed Rock Masses. An increasingly large number of Australian underground mines are being operated in highly stressed rock mass conditions, where safe and economic mining is a real challenge due to rock mass instability. In the future, this problem will become more significant as extraction gets deeper with the discoveries of new deeper orebodies or the extension of current operations at depth. The aim of this research project is to provide the Australian mining industry with effective design tools to engineer the largest, most economical, yet stable excavations in rock. The research project will use a generalised framework for design where rock mass characterisation, excavation design, behaviour and dilution control will be studied in detail.Read moreRead less
Rapid optimisation in underground mining network design. This project represents a major advance in the problem of optimising the infrastructure of underground mines and providing powerful planning tools for management. The software tools we are developing will prove important to the mining industry because of their accuracy, flexibility and generality. Not only can they be used for benchmarking in the design of specific mines, but they also provide a reliable method for testing the cost-benefi ....Rapid optimisation in underground mining network design. This project represents a major advance in the problem of optimising the infrastructure of underground mines and providing powerful planning tools for management. The software tools we are developing will prove important to the mining industry because of their accuracy, flexibility and generality. Not only can they be used for benchmarking in the design of specific mines, but they also provide a reliable method for testing the cost-benefit of emerging technologies. This is an important project for ensuring that Australia's mining industry remains efficient and internationally competitive. Given our economic dependence on mineral resources, it will also benefit Australia as a whole.Read moreRead less
Decision tools for underground mine development. The aim of this project is to develop innovative new strategic tools to assist senior mine management in planning underground mine operations. It will be based on modelling underground mine layouts using the theory of abstract mathematical networks. For many years, there have been well-developed methods of modelling and optimising the operation of open-cut mines. The design of the infrastructure of underground mines has a similar potential for opt ....Decision tools for underground mine development. The aim of this project is to develop innovative new strategic tools to assist senior mine management in planning underground mine operations. It will be based on modelling underground mine layouts using the theory of abstract mathematical networks. For many years, there have been well-developed methods of modelling and optimising the operation of open-cut mines. The design of the infrastructure of underground mines has a similar potential for optimisation and strategic modelling. This design optimisation will lead to huge savings in the costs of underground mines. Similar methods will be used to plan drilling programs, which are major cost items.Read moreRead less