Authors: Cecchetti, M; Rossi, M; Coppi, F; Bicci, A; Coli, N; Boldrini, N; Preston, C


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Cecchetti, M, Rossi, M, Coppi, F, Bicci, A, Coli, N, Boldrini, N & Preston, C 2017, 'A novel radar-based system for underground mine wall stability monitoring', in M Hudyma & Y Potvin (eds), UMT 2017: Proceedings of the First International Conference on Underground Mining Technology, Australian Centre for Geomechanics, Perth, pp. 431-443,

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Ground collapse is a serious issue for underground mining, and currently there is a lack of remote sensing monitoring systems to perform real-time deformation monitoring. Extensometers can be used in several situations; however, this instrumentation obliges the user to work close to unstable areas, thus a remote monitoring system would offer noticeably improved safety conditions. IDS GeoRadar, a provider of radar technology for slope monitoring in surface mining, recently developed an interferometric radar system for underground operations to monitor ground fall precursors and provide early warning in order to evacuate people and machinery at risk. This radar system is able to monitor slow deformations to produce preliminary risk assessment on potentially exposed instabilities in underground areas. The new radar system is able to provide sub-millimetre displacement accuracy at a spatial resolution of tens of centimetres, with updated displacement information every 30 seconds. In this paper, the system is described, along with performance test results and assessment of monitoring performances in real scenarios.

Keywords: radar, interferometry, deformation, rockfall, stability, safety, monitoring, underground, mining

Bernardini, G, Ricci, P & Coppi, F 2007, ‘A ground based microwave interferometer with imaging capabilities for remote measurements of displacements’, Proceedings of the 7th Geomatic Week.
Brink, VF, Fourie, F, Mine, K & Zaniewski, T 2008, Continuous Monitoring for Safety, Health and Optimisation in South African Deep Level Mining, Southern African Institute of Mining and Metallurgy, pp. 1–15.
Brady, B & Brown, H 2005, Rock Mechanics for Underground Mining, 3rd edn, Springer Science+Business Media, Berlin.
Farina, P, Leoni, L, Babboni, F, Coppi, F, Mayer, L & Ricci, P 2011, ‘IBIS-M: An innovative radar for monitoring slopes in open-pit mines’, Proceedings of the 2011 International Symposium on Rock Slope Stability in Open Pit Mining and Civil Engineering, Canadian Rock Mechanics Association, pp. 18–21.
Kumar, A, Kumar, D, Gupta, P & Shankar, G 2011, ‘Optimizing fibre optics for coal mine automation’, International Journal of Control and Automation, vol. 4, no. 3, pp. 19–30.
Kukutsch, R, Kajzar, V, Konicek, P, Waclawik, P& Ptacek, J 2015, ‘Possibility of convergence measurement of gates in coal mining using terrestrial 3D laser scanner’, Journal of Sustainable Mining, vol. 14, no. 1, pp. 30–37.
Maleki, H & McVey, J, 1988, Detection of Roof Instability by Monitoring the Rate of Movement, Bureau of Mines Report of Investigations RI 9170, U.S. Government Printing Office, Washington, DC.
Moffat, R, Beltran, F & Herrera, R 2015, ‘Applications of BOTDR fiber optics to the monitoring of underground structures’, Geomechanics and Engineering, vol. 9, no. 3, pp. 397–414.
Mononen, S, Suikkanen, M, Coli, N, Funaioli, G & Meloni, F 2016, ‘Critical Real Time Radar Monitoring of Sub-bench Failures at Yara Suomi Oy Siilinjärvi Open Pit Mine (Finland)’, in R Ulusay, Ö Aydan, H Gerçek, AM Hindistan & E Tuncay (eds), Proceedings of EUROCK 2016: Rock Mechanics and Rock Engineering: From the Past to the Future, Taylor & Francis Group, London.
Mines Occupational Safety and Health Advisory Board 1997, Geotechnical Considerations in Underground Mines,
Document No.: ZME723QT, Department of Industry and Resources, Perth.
Mine Safety and Health Administration 2015, Lost-time Injuries by Accident Class for Surface and Underground Mining Locations, Mine Safety and Health Administration, Atlanta, viewed 25 July 2017,
Ramsden, F, Coli, N, Benedetti, AI, Falomi, A, Leoni, L & Michelini, A 2015, ‘Effective use of slope monitoring radar to predict a slope failure at Jwaneng Mine, Botswana’, Proceedings of the 2015 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering, The Southern African Institute of Mining and Metallurgy, Johannesburg.
Slaker, B 2015, Monitoring Underground Mine Displacement Using Photogrammetry and Laser Scanning, PhD dissertation, Virginia Polytechnic Institute and State University, Blacksburg.
Szwedzicki, T 2008, ‘Precursors to rock mass failure in underground mines’, Archives of Mining Sciences, vol. 53, no. 3, pp. 449–465.

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