{"id":24223,"date":"2023-05-31T10:18:33","date_gmt":"2023-05-31T08:18:33","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/rd-947-raccordement-au-pont-du-gouret\/"},"modified":"2024-01-26T12:05:38","modified_gmt":"2024-01-26T11:05:38","slug":"rd-947-raccordement-au-pont-du-gouret","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/rd-947-raccordement-au-pont-du-gouret\/","title":{"rendered":"RD 947 \u2013 RACCORDEMENT AU PONT DU GOURET"},"content":{"rendered":"
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Probl\u00e8me<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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A la sortie du village d’Aiguilles, l\u2019ancienne RD 947 est implant\u00e9e sur un versant particuli\u00e8rement instable, en fond de vall\u00e9e en rive droite du torrent du Guil. Un glissement de masse de grande ampleur s’\u00e9tait r\u00e9activ\u00e9 et mettait directement en p\u00e9ril la RD 947 et les ouvrages de sout\u00e8nement aval. Au d\u00e9but du printemps 2017, une accentuation du ph\u00e9nom\u00e8ne s’\u00e9tait d\u00e9clar\u00e9e avec de nombreuses chutes de blocs. Le glissement provoquait des pressions importantes sur la route d\u00e9partementale, avec pour cons\u00e9quence des d\u00e9gradations et plissements de chauss\u00e9e surtout \u00e0 l’amont. Apr\u00e8s une nouvelle \u00e9tude g\u00e9otechnique, un nouveau trac\u00e9 pour les travaux de raccordement entre la nouvelle d\u00e9viation du Pas de l’Ours et la route d\u00e9partementale 947 existante c\u00f4t\u00e9 Abri\u00e8s-Ristolas, via le nouveau Pont du Gouret enjambant le Guil. L’am\u00e9nagement est r\u00e9alis\u00e9 sur une longueur d’environ 500 m\u00e8tres (+100m pour le raccordement de la voie du Camping). Des ouvrages de sout\u00e8nement \u00e0 parement min\u00e9ral devaient \u00eatre r\u00e9alis\u00e9s.<\/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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Maccaferri a \u00e9t\u00e9 sollicit\u00e9 par l’entreprise Guiramand pour dimensionner, fournir et installer ces deux ouvrages en remblais renforc\u00e9s. Les ouvrages r\u00e9alis\u00e9s sont des remblais renforc\u00e9s \u00e0 parement min\u00e9ral dont les modules sont inclin\u00e9s \u00e0 10\u00b0 par rapport \u00e0 la verticale et qui pr\u00e9sentent des redans de construction de 2cm entre chaque module. Le sout\u00e8nement 2120 a une hauteur variant entre 2m et 6.3m, le sout\u00e8nement 2450 a une hauteur variant entre 3.95m et 5.53m suivant les profils. En t\u00eate, les cages ont \u00e9t\u00e9 fa\u00e7onn\u00e9es de mani\u00e8re \u00e0 suivre le profil en long de la voirie. Le Terramesh Mineral dispose d’un parement min\u00e9ral de 30cm d\u2019\u00e9paisseur en t\u00eate et de 50cm d\u2019\u00e9paisseur moyenne, qui se prolonge par une nappe de grillage m\u00e9tallique en arri\u00e8re de 2.5m de longueur. Ces structures ont \u00e9t\u00e9 associ\u00e9es \u00e0 des g\u00e9ogrilles de renfort de type \u00ab Paragrid 50 \u00bb, certifi\u00e9es CE et BBA, de longueur variable en fonction de la hauteur et au maximum de 7m pour le mur 2450 et 10m pour le mur 2120. Elles sont espac\u00e9es tous les 0.79m de hauteur. Ces grandes longueurs de Paragrid, par rapport \u00e0 la hauteur des murs, s\u2019expliquent par les v\u00e9rifications de stabilit\u00e9 g\u00e9n\u00e9rale qui englobent le versant.<\/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":"

Maccaferri a \u00e9t\u00e9 sollicit\u00e9 par l'entreprise Guiramand pour dimensionner, fournir et installer ces deux ouvrages en remblais renforc\u00e9s. Les ouv<\/p>\n","protected":false},"featured_media":9445,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-24223","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nRD 947 \u2013 RACCORDEMENT AU PONT DU GOURET - 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\/rd-947-raccordement-au-pont-du-gouret\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RD 947 \u2013 RACCORDEMENT AU PONT DU GOURET - Maccaferri France\" \/>\n<meta property=\"og:description\" content=\"Maccaferri a \u00e9t\u00e9 sollicit\u00e9 par l'entreprise Guiramand pour dimensionner, fournir et installer ces deux ouvrages en remblais renforc\u00e9s. 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