McPhail, GI, Becerra, M & Barrera, S 2012, 'Important considerations in the testing of high density tailings for beach profile prediction', in R Jewell, AB Fourie & A Paterson (eds), Proceedings of the 15th International Seminar on Paste and Thickened Tailings
, Australian Centre for Geomechanics, Perth, pp. 93-101.
The authors have conducted several investigations into the prediction of the beach profile of high density tailings and have found that there are a number of important considerations that need to be taken into account over and above the reliability of the beach profile prediction methodology. These considerations relate to the chemistry of the slurry and specifically the influence of pH and flocculation, both of which have a significant influence on the rheology of the slurry at the discharge point. A number of examples are discussed and a potential testing protocol that will assist in assessing the influence of chemistry ahead of the beach profile predictions is presented. A methodology for assimilating the results of the testing into the likely field situation is discussed and suggestions are made on application of the results in beach profile prediction. The suspected influence of residual flocculation on the stratification of the tailings slurry as it flows down the beach is also discussed.
McPhail, G. (1995) Prediction of the beaching characteristics of hydraulically placed tailings, PhD Dissertation submitted to the University of the Witwatersrand, Johannesburg, South Africa.
McPhail, G. (2008) Prediction of the Beach Profile of High Density Thickened Tailings from Rheological and Small Scale Trial Deposition Data, Proceedings 11th International Seminar on Paste and Thickened Tailings (Paste08), A.B. Fourie, R.J. Jewell, P. Slatter and A. Paterson (eds), 5–9 May 2008, Kasane, Botswana, Australian Centre for Geomechanics, Perth,
Pinto, M. and Barrera, S. (2002) Tailings beach slope forecasting – copper tailings, in Proceedings Ninth International Conference on Tailings and Mine Waste (Tailings and Mine Waste ‘02) Fort Collins, Colorado, USA, 27–30 January 2002, pp. 87–94.
Simms, P., Williams, M.P.A., Fitton, T. and McPhail, G. (2011) Beaching angles and evolution of stack geometry for thickened tailings – A review, in Proceedings 14th International Seminar on Paste and Thickened Tailings (Paste2011), R.J. Jewell and
A.B. Fourie (eds), 5–7 April 2011, Perth, Australia, Australian Centre for Geomechanics, Perth, pp. 323–338.
Sofra, F., Fisher, D.T. and Boger, D.V. (2007) The bucket rheometer for thickened tailings and paste flow curve determination, in Proceedings Tenth International Seminar on Paste and Thickened Tailings (Paste07), A.B. Fourie and R.J. Jewell (eds), 13–15 March 2007, Perth, Australia, Australian Centre for Geomechanics, Perth, pp. 249–258.