Resumo

GOLDER, A.  e  ROY, I.. Safety aspects of large dragline-operated opencast mines - An overview. J. S. Afr. Inst. Min. Metall. [online]. 2022, vol.122, n.1, pp.15-20. ISSN 2411-9717.  http://dx.doi.org/10.17159/2411-9717/1452/2022.

The Jayant opencast operation is one of the largest opencast coal mines in India. Prior to 2008 the mine experienced a number of dragline dump failures, which was a major hindrance in sustaining production. Northern Coalfields Limited (NCL) and the mine management engaged several design, research, and academic institutions to carry out dump slope stability studies, particularly of dragline dumps. Birla Institute of Technology prepared a report on the investigations in May 2009. In this paper we review the findings of the report and the measures taken to tackle the safety aspects of dragline dumps.

Palavras-chave : slope stability; circular failure; opencast mining; shear strength; overburden dump.

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