Avoiding catastrophic failure of rock bolts in underground coal mines. This project will examine the factors responsible for the emerging problem of catastrophic failure of rock bolts in underground mines in order to develop strategies for resisting such failures. The consequences of rock bolt failure are potentially enormous from both a mine safety and economic standpoint. The strategies developed are expected to not only reduce the likelihood of injury and death from rock falls but to also red ....Avoiding catastrophic failure of rock bolts in underground coal mines. This project will examine the factors responsible for the emerging problem of catastrophic failure of rock bolts in underground mines in order to develop strategies for resisting such failures. The consequences of rock bolt failure are potentially enormous from both a mine safety and economic standpoint. The strategies developed are expected to not only reduce the likelihood of injury and death from rock falls but to also reduce very expensive mine downtime and avoid costly replacement of broken rock bolts. Australian Rock Bolting Technology is now used internationally and the work will be of substantial significance both nationally and internationally. It will help maintain Australia's international prominence in this field.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE150100058
Funder
Australian Research Council
Funding Amount
$560,000.00
Summary
Three dimensionally compressed and monitored Hopkinson bar . 3D compressed and monitored Hopkinson bar: The 3D compressed and monitored Hopkinson bar allows determination of the dynamic mechanical properties and fracturing behaviour of materials under such confinement. Understanding material behaviour under dynamic loading is essential in dealing with many engineering problems as excavation, fragmentation, earthquake, blasting, and structure design. In geotechnical and structure projects, materi ....Three dimensionally compressed and monitored Hopkinson bar . 3D compressed and monitored Hopkinson bar: The 3D compressed and monitored Hopkinson bar allows determination of the dynamic mechanical properties and fracturing behaviour of materials under such confinement. Understanding material behaviour under dynamic loading is essential in dealing with many engineering problems as excavation, fragmentation, earthquake, blasting, and structure design. In geotechnical and structure projects, materials are often subjected to existing confining stresses. The full-field optical techniques, with an ultra-high speed and resolution camera in the system, aims to assist the quantitative measurement of deformation fields including small strain induced in brittle material's failure and identification of constitutive parameters.Read moreRead less
Metallurgical Influences on Stress Corrosion Cracking (SCC) of Rock Bolts. This project seeks to understand the metallurgy of stress corrosion cracking (SCC) of rock bolts. Rock bolts are the most effective means of roof support in underground mines and, as a consequence, rock bolts are widely used in the mining industry worldwide. Failure of rock bolts by SCC has significant safety and economic implications. The consequent rock falls have the potential to kill or main any person caught undernea ....Metallurgical Influences on Stress Corrosion Cracking (SCC) of Rock Bolts. This project seeks to understand the metallurgy of stress corrosion cracking (SCC) of rock bolts. Rock bolts are the most effective means of roof support in underground mines and, as a consequence, rock bolts are widely used in the mining industry worldwide. Failure of rock bolts by SCC has significant safety and economic implications. The consequent rock falls have the potential to kill or main any person caught underneath. If a stoppage is caused of the long wall operation in a typical Australian colliery, the typical value of the lost production is of the order of a million dollars a day.Read moreRead less
Integrated processes for fine coal treatment. This project is concerned with new processes for the treatment of fine coal which forms an export market in excess of A$2 billion a year. The aim is to improve the separation of fine coal from silt and clay, and especially the recovery of larger particles in the flotation process. Further aims are to increase the ease of filtration and dewatering of fine coal, and to reduce the dust that is generated when fine coal is handled during transportation on ....Integrated processes for fine coal treatment. This project is concerned with new processes for the treatment of fine coal which forms an export market in excess of A$2 billion a year. The aim is to improve the separation of fine coal from silt and clay, and especially the recovery of larger particles in the flotation process. Further aims are to increase the ease of filtration and dewatering of fine coal, and to reduce the dust that is generated when fine coal is handled during transportation on land and sea. A laboratory-scale process will be developed and tested at a larger scale. The new knowledge that is gained will be essential for the successful introduction of the new technology into the Australian coal industry.Read moreRead less