Thomas, A & Fitton, TG 2011, 'Analysis of tailings beach slopes based on slurry pipeline experience', in R Jewell & AB Fourie (eds), Paste 2011: Proceedings of the 14th International Seminar on Paste and Thickened Tailings
, Australian Centre for Geomechanics, Perth, pp. 295-306, https://doi.org/10.36487/ACG_rep/1104_27_Fitton
Slurry pipeline technology has evolved over the past 50 years and prediction methods for all types of slurries, ranging from coarse solids in water to highly non-Newtonian slurries, are reasonably well developed. In comparison, prediction methods for tailings flow down a beach and the resulting beach slope, are less well developed although the two types of flow are obviously related to some extent.
The current paper analyses open channel flow down a tailings beach using approaches developed for pipe flow. Predictive slope equations are presented. The resulting predicted slopes are compared with a range of measured slopes in both flume experiments and tailings deposit slopes at a number of operating mines.
Buckingham, E. (1921) On plastic flow through capillary tubes, ASTM Proceedings, Vol. 21, pp. 1154–1156.
Cooke, R. (2002) Laminar flow settling: the potential for unexpected problems, in Proceedings Hydrotransport 15 Conference, Banff, Canada.
Durand, R. (1953) Minnesota International Hydraulics Convention, in Proceedings International Association for Hydraulic Research, Lisbon, Portugal, pp. 89–103.
Fitton, T. (2007) Tailings beach slope prediction, PhD Thesis, RMIT University, Melbourne, Australia.
Houman, J. and Johnson, G. (2002) High density disposal of co-thickened Kimberlite slurry using positive displacement pumps – a case study, in Proceedings Hydrotransport 15 Conference, Banff, Canada.
Knudsen, J.G. and Katz, D.L. (1958) Fluid Dynamics and Heat Transfer, McGraw-Hill, New York.
McPhail, G.I. (1994) Prediction of the beaching characteristics of hydraulically placed tailings, PhD thesis, University of Witwatersrand, South Africa.
Pullum, L., Graham, L. and Wu, J. (2010) Bed establishment lengths under laminar flow, in Proceedings Hydrotransport 18 Conference, Rio de Janeiro, Brazil.
Schriek, W., Smith, L.G., Haas, D.B. and Husband, W.H.W. (1973a) Experimental studies on the transport of two different sands in water in 2, 4, 6, 8, 10 and 12 inch pipelines, Saskatchewan Research Council, Canada.
Schriek, W., Smith, L.G., Haas, D.B. and Husband, W.H.W. (1973b) Experimental studies on the hydraulic transport of iron ore, Saskatchewan Research Council, Canada.
Thomas, A.D. (1974) Unpublished data, M.D. Research Company, Sydney, Australia.
Thomas, A.D. (1979a) Predicting the deposit velocity for horizontal turbulent pipe flow of slurries, International Journal Multiphase Flow, Pergamon/Elsevier, Vol. 5, pp. 113–129.
Thomas, A.D. (1979b) Pipelining of coarse coal as a stabilized slurry – another viewpoint, in Proceedings 4th International Technical Conference on Slurry Transportation, Las Vegas, USA.
Thomas, A.D. and Wilson, K.C. (2007) Rough-wall and turbulent transition analyses for Bingham plastics, in Proceedings Hydrotransport 17 Conference, Cape Town, South Africa.
Thomas, A.D., Pullum, L. and Wilson, K.C. (2004) Stabilised laminar slurry flow: review, trends and prognosis, in Proceedings Hydrotransport 16 Conference, Santiago, Chile.
Williams, M.P.A. and Meynink, W.J.C. (1986) Tailings beach slopes, Workshop on Mine Tailings Disposal, University of Queensland, Brisbane, Australia.
Wilson, K.C. and Judge, D.G. (1976) New techniques for the scale-up of pilot plant results to coal slurry pipelines, in Proceedings International Symposium on Freight Pipelines, Washington DC, USA.
Wilson, K.C. and Thomas, A.D. (1985) A new analysis of the turbulent flow of non-Newtonian fluids, Canadian Journal of Chemical Engineering, Vol. 63, pp. 539–546.
Wilson, K.C. and Thomas, A.D. (2006) Analytic model of laminar-turbulent transition for Bingham plastics, Canadian Journal of Chemical Engineering, October 2006, Canada.
Whipple, K., Parker, G., Paola, C. and Mohrig, D. (1998) Channel Dynamics, Sediment Transport, and the Slope of Alluvial Fans: Experimental Study, Journal of Geology, Vol. 106, No. 6, pp. 677–693.