{"id":10105,"date":"2023-03-01T16:45:49","date_gmt":"2023-03-01T15:45:49","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/ca\/success-stories\/deplacement-digues-suite-a-construction-de-la-nouvelle-ligne-tgv-2\/"},"modified":"2023-03-01T16:45:50","modified_gmt":"2023-03-01T15:45:50","slug":"deplacement-digues-suite-a-construction-de-la-nouvelle-ligne-tgv-2","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/ca\/fr\/success-stories\/deplacement-digues-suite-a-construction-de-la-nouvelle-ligne-tgv-2\/","title":{"rendered":"D\u00c9PLACEMENT DIGUES SUITE \u00c0 CONSTRUCTION DE LA NOUVELLE LIGNE TGV"},"content":{"rendered":"
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Problem<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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La ligne ferroviaire de contournement \u00e0 grande vitesse de N\u00eemes et Montpellier (CNM) franchit le Vidourle sur les communes de Lunel en rive droite et Gallargues-le-Montueux en rive gauche. BRLi a \u00e9t\u00e9 mandat\u00e9 par l\u2019EPTB Vidourle afin de d\u00e9finir les travaux n\u00e9cessaires pour assurer la continuit\u00e9 de la protection contre les inondations au droit de l\u2019intersection de la voie CNM et de la digue de rive gauche sur la commune de Gallargues-le-Montueux. Par ailleurs, cot\u00e9 rive droite du Vidourle, ISL a \u00e9t\u00e9 mandat\u00e9 par l\u2019EPTB Vidourle afin de d\u00e9finir les travaux n\u00e9cessaires pour assurer la continuit\u00e9 de la protection contre les inondations au droit de l\u2019intersection de la voie CNM et de la digue de rive droite sur la commune de Lunel. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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Solution<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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Sur la rive droite, \u00e0 Lunel, la digue d\u00e9finitive est con\u00e7ue pour \u00eatre d\u00e9versante sur un lin\u00e9aire de 150 m. En amont et en aval, la digue est raccord\u00e9e \u00e0 la digue existante (d\u00e9versoir de s\u00e9curit\u00e9 Lunel) r\u00e9alis\u00e9e en 2009 avec des structures de France Maccaferri. A l\u2019\u00e9poque, Maccaferri avait dimensionn\u00e9 une variante \u00e0 des enrochements b\u00e9tonn\u00e9s. Sur la rive gauche, la digue d\u00e9finitive a \u00e9t\u00e9 reconstruite et la digue provisoire a \u00e9t\u00e9 d\u00e9molie. L\u2019ensemble des protections des digues ont \u00e9t\u00e9 r\u00e9alis\u00e9 en matelas Reno\u00ae et gabions double torsion. Les matelas Reno\u00ae forment une structure monolithique et drainante. Ils sont constitu\u00e9s d\u2019une nappe continue formant le fond et les diaphragmes, ce qui permet \u00e0 la structure de ne pas se coucher sous le poids des pierres lors du remplissage (double diaphragmes). De plus, les matelas Reno\u00ae \u00e0 double diaphragmes sont les seules structures test\u00e9es hydrauliquement, permettant de justifier du dimensionnement correct de l'ouvrage. La mise en \u0153uvre a \u00e9t\u00e9 r\u00e9alis\u00e9e par les \u00e9quipes de France Maccaferri selon la norme de mise en oeuvre NFP94 325-2 qui traite des ouvrages en gabions en grillage m\u00e9tallique \u00e0 maille hexagonale double torsion en milieu aquatique. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>","protected":false},"excerpt":{"rendered":"

Sur la rive droite, \u00e0 Lunel, la digue d\u00e9finitive est con\u00e7ue pour \u00eatre d\u00e9versante sur un lin\u00e9aire de 150 m. En amont et en aval, la digue est raccor<\/p>\n","protected":false},"featured_media":17298,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-10105","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nD\u00c9PLACEMENT DIGUES SUITE \u00c0 CONSTRUCTION DE LA NOUVELLE LIGNE TGV - Maccaferri Canada<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/maccaferri-stage.softecspa.it\/ca\/fr\/success-stories\/deplacement-digues-suite-a-construction-de-la-nouvelle-ligne-tgv-2\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"D\u00c9PLACEMENT DIGUES SUITE \u00c0 CONSTRUCTION DE LA NOUVELLE LIGNE TGV - Maccaferri Canada\" \/>\n<meta property=\"og:description\" content=\"Sur la rive droite, \u00e0 Lunel, la digue d\u00e9finitive est con\u00e7ue pour \u00eatre d\u00e9versante sur un lin\u00e9aire de 150 m. 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