Staged construction analysis of surface tailings disposal facilities

One of the major challenges that faces the mining industry is the stability of surface tailings disposal facilities (STDF) particularly when they are raised with the more economical upstream method whereby the embankments are partially built on previously deposited soft tailing materials. Whether th...

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Bibliographic Details
Published in:International journal of mining, reclamation and environment reclamation and environment, 2010-03, Vol.24 (1), p.44-63
Main Authors: Saad, Bassam, Mitri, Hani
Format: Article
Language:English
Subjects:
coupled analysis
numerical modelling
stability
surface tailings disposal facilities
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Summary:One of the major challenges that faces the mining industry is the stability of surface tailings disposal facilities (STDF) particularly when they are raised with the more economical upstream method whereby the embankments are partially built on previously deposited soft tailing materials. Whether the effective or total stress analysis should be used to evaluate the stability of STDFs under construction/operation has been a controversial issue among the respective researchers. Although both analyses cannot compete with the coupled deformation approach, the latter is still grossly underused in the geotechnical evaluation process of STDFs. The goal of this article is to develop a numerical model that can more genuinely assess the stability of STDFs during staged construction using the coupled deformation approach. A number of simulation techniques are presented and discussed using actual data for an upstream coal wash STDF.
ISSN:1748-0930
1748-0949
DOI:10.1080/17480930902951293