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Rim slope failure mechanism in the Greek deep lignite mines a case study

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National Technical University of Athens   

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Rim slope failure mechanism in the Greek deep lignite mines a case study (EN)
Terezopoulos, N (EN)
Leonardos, M (EN)
journalArticle (EN)
2014-03-01T01:19:30Z
2003 (EN)
This paper presents the studies and the findings of various cases encountered during the development of slope failure detection methods at the lignite mines of Ptolemais and Megalopolis, Greece. The type of failure is a compound one consisting of a nearly horizontal surface and a curved one at the back. The most important factor for the stability is the shear strength available in the planar part of the failure surface, which shows that a progressive failure is taking place. The investigations revealed that the development of a failure surface was from the toe to the crest and, therefore, impending slope failures can be detected and analysed long before any crack formation at the slope crest becomes visible. In addition, there are simple tools, for failure monitoring that can be easily incorporated in the mining activities. The authors are in the Department of Mining and Metallurgy, Division of Mining Engineering, National Technical University of Athens, Zographou Campus, 9 Heroon Polytechniou Street, 157 80 Athens, Greece (Tel: +30 1 7722159; Fax: +30 1 7722199: e-mail: terezop@metal ntua.gr). (C) 2003 IoM Communications Ltd Published by Maney for the Institute of Materials, Minerals and Mining in association with AusIMM. (EN)
Mining & Mineral Processing (EN)
Greece (EN)
Electric power plants (EN)
Electric power generation (EN)
Excavators (EN)
Failure analysis (EN)
Rim slope failure (EN)
Lignite mines (EN)
Deep lignite mines (EN)
Shear strength (EN)
Failure (mechanical) (EN)
Rotation (EN)
Institution of Mining and Metallurgy. Transactions. Section A: Mining Technology (EN)
English
MANEY PUBLISHING (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
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