Authors: Masethe, RT; Durrheim, R J; Manzi, MSD


DOI https://doi.org/10.36487/ACG_rep/1952_06_Masethe

Cite As:
Masethe, RT, Durrheim, R J & Manzi, MSD 2019, 'The seismic response to mining during the extraction of the Thuthukani shaft pillar, Kloof Operations, South Africa', in W Joughin (ed.), Proceedings of the Ninth International Conference on Deep and High Stress Mining, The Southern African Institute of Mining and Metallurgy, Johannesburg, pp. 71-86, https://doi.org/10.36487/ACG_rep/1952_06_Masethe

Download citation as:   ris   bibtex   endnote   text   Zotero


Abstract:
All seismic data recorded since the extraction of the Thuthukani shaft pillar commenced in January 2007, has been analysed. Seismicity was compared in two five-year periods (1 January 2007 to 30 November 2012 and 1 December 2012 to 31 July 2017). It was found there was an increase in the rate of seismicity and the maximum magnitude (Mmax) from 2.7 to 3. 2.. Strategies to mitigate the seismic risk during shaft extraction are discussed in this paper.

References:
Chen, J.F. (2007). Results of rock property tests. Rocklab Report 2007-OHS- Research-Works-03. Rocklab. Pretoria, South Africa.
Dankert, B. T., and Hein, K. A. A. (2010). Evaluating the structural character and tectonic history of the Witwatersrand Basin: Precambrian Research, 177, 1–22.
Jager, A.J. and Ryder, J.A. (1999). Rock Engineering Practice for Tabular Hard Rock Mines. The Safety in Mines Research Advisory Committee (SIMRAC), Johannesburg.
Manzi, M. S. D., Hein, K. A. A., King, N. and Durrheim, R. J. (2013). Neoarchaean tectonic history of the Witwatersrand Basin and Ventersdorp Supergroup: new constraints from high-resolution 3D seismic reflection data. Tectonophysics, 590, 94-105.
Maritz, A.J., Greyling, P.A., Geyser, D. (2007). Extraction of the shaft pillar on the VCR horizon Kloof Main Shaft Complex. Challenges in Deep and High Stress Mining, Potvin, Y., Hadjigeorgiou, J. and Stacey, D. (eds), Australian Centre for Geomechanics, pp. 105-111.
Mendecki, A. J. (2016). Mine Seismology Reference Book: Seismic Hazard. Institute of Mine Seismology, ISBN 978-0-9942943-0-2, www.imseismology.org/msrb/, 1 edition. .
Naicker, N. (2013). Application of seismic information in the mining design and monitoring of the KDC-East shaft Pillar. Proceedings of the Eighth International Symposium on Rockbursts and Seismicity in Mines, Saint Petersburg – Moscow, Russia, 1-7 September 2013, Malovichko, A. and Malovichko, D. (eds), Geophysical Survey of the Russian Academy of Sciences and Mining Institute of Ural Branch of Russian Academy of Sciences, pp. 395-412.
Van der Heever, P and Ryder, J.A. (2007). Characterisation of the Westonaria Formation at Main Shaft, Kloof Gold Mine. Consultancy Report. Groundwork. Johannesburg, South Africa.




© Copyright 2020, Australian Centre for Geomechanics (ACG), The University of Western Australia. All rights reserved.
Please direct any queries or error reports to repository-acg@uwa.edu.au