{"id":24202,"date":"2023-05-31T10:18:29","date_gmt":"2023-05-31T08:18:29","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/rn193-echangeur-e1-liaison-bastia-furiani\/"},"modified":"2024-01-26T12:05:42","modified_gmt":"2024-01-26T11:05:42","slug":"rn193-echangeur-e1-liaison-bastia-furiani","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/rn193-echangeur-e1-liaison-bastia-furiani\/","title":{"rendered":"RN193 ECHANGEUR E1 LIAISON BASTIA FURIANI"},"content":{"rendered":"
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Probl\u00e8me<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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Dans le cadre de l\u2019am\u00e9nagement d\u2019un \u00e9changeur au sud de Furiani, la route principale passe au-dessus d\u2019un giratoire, ce qui n\u00e9cessite la r\u00e9alisation d\u2019ouvrages de sout\u00e8nement pour retenir les rampes d\u2019acc\u00e8s, le terre-plein central et les cul\u00e9es des deux ouvrages de franchissement. En partie nord, les cul\u00e9es sont mixtes (tablier du pont reposent sur les piles) alors qu\u2019en partie sud, les cul\u00e9es sont porteuses (le tablier repose directement sur le remblai) et le remblai est fond\u00e9 sur inclusions rigides. Le projet pr\u00e9voyait la r\u00e9alisation de remblais de hauteur maximale de 6m. Ces remblais ont \u00e9t\u00e9 stabilis\u00e9s \u00e0 l\u2019aide de structures en sol renforc\u00e9s \u00e0 parement min\u00e9ral. <\/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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L\u2019entreprise Corse Travaux (groupe Vinci), en charge des travaux, a choisi de consulter et de faire usage de l\u2019expertise de Maccaferri pour dimensionner les ouvrages en Terramesh\u00ae system en solution variante. Le Terramesh\u00ae system associe lors de la fabrication en usine un \u00e9l\u00e9ment de renforcement en grillage NF Acier rev\u00eatu de PVC \u00e0 un parement en gabion \u00e0 maille hexagonale double torsion. L\u2019ensemble des structures sont assembl\u00e9es et remplies in situ afin de former un ouvrage monolithique et capable d\u2019absorber de grandes d\u00e9formations sans mettre en p\u00e9ril sa r\u00e9sistance. La stabilit\u00e9 du massif est assur\u00e9e par l\u2019interaction entre les nappes de renfort et le remblai structurel mis en place \u00e0 l\u2019arri\u00e8re du parement gabion. La configuration du projet a n\u00e9cessit\u00e9 un renforcement suppl\u00e9mentaire sous la forme de g\u00e9ogrille Paragrid\u00ae 50 et 100 certifi\u00e9es Asqual et BBA. Tous les calculs de dimensionnement ont \u00e9t\u00e9 r\u00e9alis\u00e9s par Maccaferri avec le logiciel interne au Groupe Macstars,\u00a0 qui permet de dimensionner des g\u00e9om\u00e9tries complexes avec diverses charges. La pose des structures Terramesh\u00ae System a \u00e9t\u00e9 confi\u00e9e \u00e0 France Maccaferri. Plusieurs adaptations ont \u00e9t\u00e9 n\u00e9cessaires lors du montage de l\u2019ouvrage. La forme g\u00e9om\u00e9trique en demi-cercles concentriques des murs soutenant le terre-plein central a pu \u00eatre parfaitement respect\u00e9e en cintrant les structures dans une forme arrondie. Cela a \u00e9t\u00e9 rendu possible par la souplesse des structures en grillage double torsion.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>

Used Products<\/h2>
\"Terramesh\"<\/div>
Terramesh<\/h6>La famille Terramesh\u00ae de Maccaferri comprend diff\u00e9rentes options de parement pour la construction de structures en terre stabilis\u00e9e m\u00e9caniqu<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div>
\"G\u00e9ogrilles<\/div>
G\u00e9ogrilles monoaxiales<\/h6>Les g\u00e9ogrilles sont utilis\u00e9es, principalement, \u00e0 des fins de renforcement, compte tenu de leur structure particuli\u00e8re qui leur permet de fournir la fo<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

L\u2019entreprise Corse Travaux (groupe Vinci), en charge des travaux, a choisi de consulter et de faire usage de l\u2019expertise de Maccaferri pour dimens<\/p>\n","protected":false},"featured_media":9445,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-24202","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nRN193 ECHANGEUR E1 LIAISON BASTIA FURIANI - Maccaferri France<\/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\/fr\/exemples-de-r\u00e9ussites\/rn193-echangeur-e1-liaison-bastia-furiani\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RN193 ECHANGEUR E1 LIAISON BASTIA FURIANI - 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