Galeries de sel proche d'un site de stockage souterrain de déchets : suivi de la déformation et modélisation géomécanique
Résumé
Lidar acquisitions are carried out in two underground salt galleries at 550m deep in the Alsatian potassic basin, every two to three months between April 2017 and April 2019. After two years, the horizontal deformation ranges from 0.15% to 0.70% ± 0.08 %.
These values are constant in one gallery and gradual in the other. These results are then used to parameterise the mechanical behaviour law of the rock salt.
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