Realistic beach slope prediction and design

Authors: Seddon, KD; Fitton, TG

DOI https://doi.org/10.36487/ACG_rep/1104_26_Seddon

Cite As:
Seddon, KD & Fitton, TG 2011, 'Realistic beach slope prediction and design', 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. 281-293, https://doi.org/10.36487/ACG_rep/1104_26_Seddon

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Abstract:
This paper discusses the issue of the true reliability of a beach slope prediction method. Beach profiles have been predicted for five sites where there is reasonable information available regarding the operating variables that influence slope. Data derived from operating records show significant variability in two of the main controlling parameters: throughput (flow rate) and solids concentration (rheology or flow resistance). A combination of these variables has been used to calculate predicted beach slopes over the top, middle and lower thirds of the tailings beaches studied. Reasonable agreement between predicted and observed profiles has been obtained for both the overall slopes, and the measured slope concavity. The use of this approach to address beach concavity at the design stage is discussed.

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