Veenstra, RL 2015, 'A methodology for predicting dilution of cemented paste backfill', in Y Potvin (ed.), Proceedings of the International Seminar on Design Methods in Underground Mining
, Australian Centre for Geomechanics, Perth, pp. 527-539, https://doi.org/10.36487/ACG_rep/1511_33_Veenstra
This paper presents results from a numerical modelling exercise that looks at predicting the amount of backfill dilution expected from vertically exposed cemented paste backfill (CPB). The paper initially presents the process by which model input parameters were determined from laboratory testing and then shows how the model and laboratory results compare. The paper then presents the methodology for determining when the vertically exposed backfill mass fails and for calculating the amount of backfill dilution from this failure. A series of models were run for simple rectangular stopes for easy comparison to existing analytical exposure models. Finally, a case study was conducted by comparing the results of the methodology to cavity monitoring survey (CMS) data from an underground stope.
Fourie, AB & Grice, T 2015, ‘Mine backfill’, in RJ Jewell & AB Fourie (eds), Paste and Thickened Tailings – A Guide, 3rd edn, Australian Centre for Geomechanics, Perth, pp. 245-255.
Hughes, P 2014, ‘Underhand cut and fill cemented paste backfill sill beams’, PhD thesis, University of British Columbia.
Itasca Consulting Group, Inc. 2015, FLAC3D: Fast Lagrangian Analysis of Continua in 3 Dimensions, version 5.1, Itasca Consulting Group, Inc., Minneapolis, MN,
Kuganathan, K 2005, ‘Geomechanics of mine fill’, in Y Potvin, E Thomas & A Fourie (eds), Handbook on Mine Fill, Australian Centre for Geomechanics, Perth, pp. 23-47.
Sainsbury, DP & Urie, R 2007, ‘Stability analysis of horizontal and vertical paste fill exposures at the Raleigh Mine’, Proceedings of the Ninth International Symposium on Mining with Backfill (Minefill 2007), Canadian Institution of Mining, Metallurgy and Petroleum, Westmount, QC, paper no. 2527, 9 p.
Terzaghi, K 1943, Theoretical Soil Mechanics, John Wiley & Sons, Inc., New York, NY.
van Gool, B 2007, ‘Effects of blasting on the stability of paste fill stopes at Cannington Mine’, PhD thesis, James Cook University.
Wyllie, DC & Mah, CH 2005, ‘Rock slope engineering’, 4th edn, Spon Press, London.