Authors: Lowther, RJ; Capes, GW; Sharrock, GB


Cite As:
Lowther, RJ, Capes, GW & Sharrock, GB 2010, 'A deformation monitoring plan for extraction level drives at Ridgeway Deeps block cave mine', in Y Potvin (ed.), Caving 2010: Proceedings of the Second International Symposium on Block and Sublevel Caving, Australian Centre for Geomechanics, Perth, pp. 93-105,

Download citation as:   ris   bibtex   endnote   text   Zotero

Understanding the deformation of the rock mass surrounding extraction drives in a block cave mine is important for designing and implementing ground support, tracking the remaining ground support capacity, and for validating numerical models. This paper describes the rock mass response on the extraction level during the undercutting and early production stages of the Newcrest Mining Limited’s Ridgeway Deeps block cave mine. A summary of the planned instrumentation and monitoring program which is currently being implemented is also included. The paper also presents some of the deformation data collected to date and highlights issues identified and remedies implemented relating to both the quality of the data and data collection practices.

Capes, G.W. (2009) Internal Geotechnical Memorandum, 2 November 2009, Newcrest Mining Limited, unpublished document.
Earl, P.J. (2009) Stability Monitoring Instrumentation – Ridgeway Deeps Project, Newcrest Mining Limited, unpublished document.
Kaiser, P.K., Diederichs, M.S., Martin, C.D., Sharp, J. and Steiner, W. (2000) Underground Works in Hard Rock Tunnels, GeoEng 2000, Technomic, Melbourne, Australia, pp. 841–926.
Kontogianni, V. and Stiros, S. (2003) Tunnel monitoring during the excavation phase: 3D kinematic analysis based on geodetic data, 11th FIG Symposium on Deformation Measurements, Santorini, Greece.
Lett, J.L. and Emmi, J. (2009) The use of geotechnical photogrammetry for the assessment of Fibre Reinforced Shotcrete thickness in underground mine development, 3rd International Conference on Engineering Developments in Shotcrete, Queenstown, NZ.
Lett, J.L. (2009) RWD Geotechnical Block Model, Newcrest Mining Limited, unpublished document.
Lowther, R.J. and Capes, G.W. (2009) 4786 Extraction Level Deformation Monitoring Program, Newcrest Mining Limited, unpublished document.
Moosavi, M. and Khazaei, S. (2003) Absolute deformation profile measurements in tunnels using relative convergence measurements, 11th FIG Symposium on Deformation Measurements, Santorini, Greece.
Tod, J. and Lausch, P. (2002) Interpreting and Troubleshooting SMART Instrumentation, Mine Design Technologies Inc., unpublished document.
Walton, R. (2009) Resistance Wireline Extensometer User Manual, Top Rock Solutions, unpublished document.
Wiles, T.D. (2007) Evidence Based Model Calibration for Reliable Predictions, in Proceedings 4th International Seminar on Deep and High Stress Mining, Y. Potvin (ed), Australian Centre for Geomechanics, Perth Australia, pp. 3–20.

© Copyright 2024, Australian Centre for Geomechanics (ACG), The University of Western Australia. All rights reserved.
View copyright/legal information
Please direct any queries or error reports to