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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5833

Title: Functional specifications for in-stope support based on seismic and rockburst observations in South African mines
Authors: Durrheim, RJ
Keywords: Rockbursts
Earthquake-resistant design
Underground environment risks
In-stope
South African mines
Issue Date: Mar-2012
Publisher: Australian Centre for Geomechanics
Citation: Durrheim, RJ. Functional specifications for in-stope support based on seismic and rockburst observations in South African mines. Sixth International Seminar on Deep and High Stress Mining, Perth, Australia, 28-30 March 2012
Series/Report no.: Workflow;8840
Abstract: Rockbursts pose a significant risk to workers in deep gold and platinum mines in South Africa. In-stope support systems are one of the measures used to mitigate the risk. Over the last two decades several new technologies have been introduced, such as prestressed elongates, roofbolts and nets. However, seismic theory and observations present several characteristics of seismically-induced ground motion that are not taken explicitly into account in the functional specifications for support design, i.e. multi-cyclic shaking, shear motion between hanging and footwall, transient tensile forces, and structural resonances. Investigations of rockburst damage were reviewed to evaluate the significance of these phenomena. Similar phenomena affect surface structures exposed to earthquake-induced shaking, and earthquake engineers have developed a range of solutions to mitigate damage. These solutions are reviewed to evaluate whether the principles of earthquake-resistant design can be adapted to the underground environment. Finally, functional specifications for rockburst-resistant in-stope support are proposed.
Description: Sixth International Seminar on Deep and High Stress Mining, Perth, Australia, 28-30 March 2012
URI: http://www.acg.uwa.edu.au/publications/details/underground_mining/deep_mining_2012_proceedings
http://hdl.handle.net/10204/5833
ISBN: 978-0-9806154-8-7
Appears in Collections:Mining and geoscience
General science, engineering & technology

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