eprintid: 2139 rev_number: 9 eprint_status: archive userid: 6 dir: disk0/00/00/21/39 datestamp: 2018-10-11 14:18:17 lastmod: 2018-10-11 14:18:17 status_changed: 2018-10-11 14:18:17 type: article metadata_visibility: show creators_name: Blanco-Martín, Laura creators_name: Rouabhi, Ahmed creators_name: Billiotte, Joël creators_name: Hadj-Hassen, Faouzi creators_name: Tessier, Bruno creators_name: Hévin, Grégoire creators_name: Balland, Cyrille creators_name: Hertz, Emmanuel corp_creators: MINES ParisTech, Department of Geosciences, corp_creators: MINES ParisTech, Department of Geosciences, corp_creators: MINES ParisTech, Department of Geosciences, corp_creators: MINES ParisTech, Department of Geosciences, corp_creators: MINES ParisTech, Department of Geosciences, corp_creators: Storengy, France corp_creators: Ineris, Ecole des Mines de Nancy, France corp_creators: Compagnie des Salins du Midi et des Salins de l′Est, France title: Experimental and numerical investigation into rapid cooling of rock salt related to high frequency cycling of storage caverns subjects: O subjects: RF subjects: SF divisions: IP16 full_text_status: none keywords: Field test, Temperature drop, Tensile stresses, Salt caverns, High frequency cycling, Thermo-mechanical modeling abstract: High frequency cycling of salt caverns is becoming common practice to meet the needs of energy markets and to foster underground energy storage. In the case of rapid cooling, tensile stresses and thermally-induced fractures can appear in the surrounding rock, with potential detrimental consequences to the integrity of the storage project. To further investigate the effects of rapid cycles on the integrity of rock salt, a thermo-mechanical test was performed in a salt mine. It consisted in cooling rapidly several times a salt surface of 10 m2 (=−20 °C in about 8 h). Extensive monitoring allowed tracking the thermo-mechanical response of the rock, including possible fracture creation and propagation. Although more research is needed, the test demonstrated that tensile fracturing due to rapid cooling is possible. Thermo-mechanical modeling allowed reproducing fairly well the location, orientation and timing of the first fracture; indeed, fractures should be avoided to ensure cavern integrity, and therefore knowledge about the critical zones where fractures could appear is sufficient at the design stage. date: 2018 date_type: published publication: International Journal of Rock Mechanics and Mining Sciences volume: 102 publisher: Elsevier Science pagerange: 120-130 id_number: doi:10.1016/j.ijrmms.2018.01.008 issn: 1365-1609 official_url: http://doi.org/10.1016/j.ijrmms.2018.01.008 access_IS-EPOS: limited owner: Publisher citation: Blanco-Martín, Laura and Rouabhi, Ahmed and Billiotte, Joël and Hadj-Hassen, Faouzi and Tessier, Bruno and Hévin, Grégoire and Balland, Cyrille and Hertz, Emmanuel (2018) Experimental and numerical investigation into rapid cooling of rock salt related to high frequency cycling of storage caverns. International Journal of Rock Mechanics and Mining Sciences, 102. pp. 120-130. DOI: https://doi.org/10.1016/j.ijrmms.2018.01.008