Authors: Pope, DR; Kennedy, GD; Smith, AG

Paper is not available for download
Contact Us

DOI https://doi.org/10.36487/ACG_rep/1508_50_Pope

Cite As:
Pope, DR, Kennedy, GD & Smith, AG 2015, 'Real-time monitoring of cut slopes and the importance of identifying the mode of failure', in PM Dight (ed.), Proceedings of the Ninth Symposium on Field Measurements in Geomechanics, Australian Centre for Geomechanics, Perth, pp. 693-704, https://doi.org/10.36487/ACG_rep/1508_50_Pope

Download citation as:   ris   bibtex   endnote   text   Zotero


Abstract:
Real-time monitoring comprising radar and prism monitoring can be used in operational environments to identify and manage risk in unstable zones of cut slopes. The paper presents a number of case studies of large failures which have been actively managed through real-time monitoring to control risk while allowing continued mining. A discussion of the mode of failure for each case study is provided based on monitoring data and observations. The importance of the understanding of the mode of failure for effectively managing risk in post failure recovery is highlighted. Conclusions are made on the differing behaviour with respect to the size of failure, peak velocity and evacuation time prior to failure for each observed failure mode. Appropriate alarm triggers are discussed for both pre-failure and post-failure based on back analyses of the failures. The limitations to the approach are discussed and the need is stressed for diligent observation, communication and implementation of additional controls.

References:
in P Dight (ed.), Proceedings of the 2013 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering (Slope Stability 2013), Australian Centre for Geomechanics, Perth, pp. 483-498.
Dick, GJ, Eberhardt, E & Hutchison, BJ 2013, ‘Application of radar monitoring at Savage River Mine, Tasmania’, in P Dight (ed.), Proceedings of the 2013 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering (Slope Stability 2013), Australian Centre for Geomechanics, Perth, pp. 949-962.
Fell, R, MacGregor, P, Stapledon, D & Bell, G 2005, ‘Geotechnical Engineering of Dams’, Taylor & Francis Group, Boca Raton, FL.
Macqueen, GK, Salas, EI, Stead, D & Rose, ND 2013, ‘Early detection of impending slope failure in open pit mines using spatial and temporal analysis of real aperture radar measurements’, in P Dight (ed.), Proceedings of the 2013 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering (Slope Stability 2013), Australian Centre for Geomechanics, Perth, pp. 1011-1020.
Osasan, KS & Afeni, TB 2010, ‘Review of surface mine slope monitoring techniques, Journal of Mining Science, vol. 46, 
no. 2, pp. 177-186.
Wyllie, DC & Mah, CH 2005, Rock slope engineering, 4th edn, Spon Press, London.




© 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