Malekzadeh, M., Lovisa, J., and Sivakugan, S. (2015) Consolidation of Cannington mine tailing. In: Proceedings of the 12th Australia New Zealand Conference on Geomechanics (3) P016. From: ANZ 2015: 12th Australia New Zealand Conference on Geomechanics, 22-25 February 2015, Wellington, New Zealand.

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Abstract

Mining activities need to be taking place for the economic survival of countries. Mine tailings, which are the residue of mining activities, need to be disposed of carefully to reduce their environmental impact. Millions of tonnes of mine tailings are disposed every year in Australia through underground mines and surface tailing dams. It is generally not possible to dispose all the tailings underground, due to the space limitations, therefore the remainder is sent to the surface. For ease of transport over long distance, these tailings are often placed in the form of slurry with initial solid content of 20 to 40%. To simulate the field condition the tailing slurry is placed in the settlement columns to settle by its own weight. Then a sample is taken for conventional one-dimensional oedometer consolidation from the base of the column to investigate the consolidation behaviour of the deepest sediments after self-weight consolidation has completed. The moisture content of area at which the sample for oedometer is taken, is determined to be 21% which is the liquid limit of the tailing. It can be concluded that self-weight consolidation of the tailing finished at its liquid limit and application of surcharge is required for further consolidation. Study on the consolidation parameters of the tailing with this moisture content suggests large coefficient of consolidations with each loading increments.

Item ID:	45418
Item Type:	Conference Item (Research - E1)
Date Deposited:	30 Aug 2017 03:45
FoR Codes:	09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 40% 09 ENGINEERING > 0914 Resources Engineering and Extractive Metallurgy > 091402 Geomechanics and Resources Geotechnical Engineering @ 40% 04 EARTH SCIENCES > 0499 Other Earth Sciences > 049999 Earth Sciences not elsewhere classified @ 20%
SEO Codes:	96 ENVIRONMENT > 9614 Soils > 961404 Mining Soils @ 100%
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