Typology of strata movement related to old solution mining of salt at Sarralbe (Lorraine, France)

Abstract : In the view of closure of solution-mining cavities in salt near Nancy (East of France) belonging to Solvay Company, INERIS undertook different investigations on the site as well as several boreholes. They were completed by laboratory tests and modelling as well as the analysis of strata movement. These complementary works allowed to study long term behaviour of cavities regarding the risk of collapse of the overburden. The results came to the conclusion that because of presence of deformable strata in Sarralbe deposit, large cavities have already collapsed and now mostly closed. Meanwhile, small dissolution channels might have remained open without any significant salt creep due to their rather small depth (almost 250 m). Beyond the objective of the performed study, the investigations and their conclusions are of a methodological interest for the propose of salt mines closure with respect to the evaluation of their long term impact on the safety of people and properties as well as Environment protection.
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  • HAL Id : ineris-00972510, version 1
  • INERIS : PU-2005-234

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Xavier Daupley, Hervé Cuche, Mehdi Ghoreychi. Typology of strata movement related to old solution mining of salt at Sarralbe (Lorraine, France). Symposium Post mining 2005, Nov 2005, Nancy, France. pp.NC. ⟨ineris-00972510⟩

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