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Auteur Lacave, C.; Koller, M.W.; Eichenberger, U.; Jeannin, P.Y.
Titre Prevention of speleothem rupture during nearby construction Type Journal Article
Année 2003 Publication Revue Abrégée Environmental Geology
Volume (down) 43 Numéro Pages 892-900
Résumé The cave of Milandre, located in the Swiss Jura, is characterised by a rich speleothem population. Some of the most decorated galleries lie at low depth, (40-50 m). A new highway will be built, with a tunnel, just over a decorated part of the cave. In order to prevent damage in the cave, a study was conducted in the,framework of the impact study. One of the goals was to evaluate the risk of speleothem rupture caused by explosive shots that will be used to excavate the tunnel portal. To this end, the speleothems' vulnerability to ground shaking was compared with the observed accelerations induced by experimental explosions. This procedure allowed to determine maximum acceptable explosive charges
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