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L’après-mine et la mécanique des roches

Abstract : After a period of long and intense mining, France as many industrial countries is confronted with post-mining management. One of the challenges raised is the control of the risks of ground movement due to the presence of underground voids. Accidents such as collapse and subsidence of the ground level, which have sometimes occurred long after the closure of mines, raise the need for a clear understanding of the physical phenomena involved, to assess the long-term stability of old mines and to propose appropriate methods of risk management. After a brief presentation of a representative case of the post-mining, that of the Lorraine iron ore basin, two geo-mechanical effects responsible for certain disorders and accidents are discussed: the role of flooding that takes place after the closure of underground exploitations, and the impact of multi-level facilities with more and less close rooms. Emphasis is placed on the involved mechanisms which, to our knowledge, have not yet been matters for sufficiently basic researches.
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Submitted on : Monday, August 27, 2018 - 11:08:19 AM
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  • HAL Id : ineris-01853630, version 1

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Mehdi Ghoreychi, Farid Laouafa, Frédéric Poulard. L’après-mine et la mécanique des roches. Jubilé du Comité Français de Mécanique des Roches (CFMR), Sep 2017, Paris, France. pp.245-261. ⟨ineris-01853630⟩

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