Authors: McDonald, L; Lane, JC


Cite As:
McDonald, L & Lane, JC 2010, 'Consolidation of in-pit tailings', in R Jewell & AB Fourie (eds), Proceedings of the First International Seminar on the Reduction of Risk in the Management of Tailings and Mine Waste, Australian Centre for Geomechanics, Perth, pp. 49-62.

Download citation as:   ris   bibtex   endnote   text   Zotero


Abstract:
The use of mined out pits for tailings storage is becoming increasingly popular due to economic and environmental benefits. The main post closure issue with tailings deposition into in-pit facilities is the prediction of the settlement of the final surface in terms of time and magnitude of consolidation (settlement), as this governs when rehabilitation can commence and the type of rehabilitation to promote a free draining surface. Consolidation of in-pit tailings is influenced by factors such as tailings properties, pit geometry and permeability, and available drainage pathways. This paper presents the results of finite element modelling of various in-pit facilities to predict the consolidation and contributing factors. Case studies draw upon historical data from post closure pits from a range of tailings materials to allow the modelling to be correlated with actual field results.

References:
Anstey, D.R. and Williams, D.J. (2007) Predicting Consolidation of In-Pit Tailings, Total Tailings Management,
Australian Centre for Geomechanics, Perth, WA, 5–7 December 2007.
Bhattarai, B., Fahey, M. and Kroupnik (2001) Bulong Nickel Mine Tailings: Rowe Cell Testing, University of Western
Australia.
Hammah, R. (2005) Description of Cam-Clay and Modified-Cam-Clay Critical State Strength Models, Rocscience.
Lane, J.C. (2000) In-pit Tailings Disposal Marymia Gold Operation: Case History, in GLRG Workshop Proceedings.
Luke, G.J., Burke, K.L. and O’Brien, T.M. (1988) Evaporation Data for Western Australia Technical Report No. 65,
Salinity and Hydrology Branch, Division of Resource Management, Western Australian Department of
Agriculture.
Consolidation of in-pit tailings L. McDonald and J.C. Lane
62 Mine Waste 2010, Perth, Australia
Muir Wood, D. (1991) Soil Behaviour And Critical State Soil Mechanics, Cambridge University Press, USA,
pp. 112–117.
Soil and Rock Engineering Pty Ltd (1996) Tailings Disposal – K1SE Pit, Geotechnical Assessment of Pit and Tailings
Characteristics.
Soil and Rock Engineering Pty Ltd (1997) Tailings Storage Audit, Inspection and Management Review, Marymia Gold
Project.
Soil and Rock Engineering Pty Ltd (2004) Leach Residue Storage Facilities and Evaporation Facilities, Annual
Geotechnical Audit – 2004, Bulong Nickel Operations.




© Copyright 2019, Australian Centre for Geomechanics (ACG), The University of Western Australia. All rights reserved.
Please direct any queries to or error reports to repository-acg@uwa.edu.au