{"id":25570,"date":"2023-05-11T11:06:53","date_gmt":"2023-05-11T09:06:53","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/ca\/success-stories\/rd980-rectification-de-virages\/"},"modified":"2023-05-11T11:06:54","modified_gmt":"2023-05-11T09:06:54","slug":"rd980-rectification-de-virages","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/ca\/fr\/success-stories\/rd980-rectification-de-virages\/","title":{"rendered":"RD980 RECTIFICATION DE VIRAGES"},"content":{"rendered":"
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Problem<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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Face \u00e0 la fr\u00e9quence forte d\u2019accidents mat\u00e9riels due principalement au trac\u00e9 sinueux et en pente de la route, le D\u00e9partement a d\u00e9cid\u00e9 d\u2019engager d\u2019importants travaux pour s\u00e9curiser cette section. Ces travaux visent \u00e0 traiter les virages pour leur donner un rayon plus adapt\u00e9 au trafic tout en garantissant la sauvegarde du patrimoine routier en d\u00e9calant la route c\u00f4t\u00e9 amont. <\/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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Initialement, le projet pr\u00e9voyait de conforter les talus par r\u00e9alisation de parois clou\u00e9es. France Maccaferri, sollicit\u00e9 par l\u2019entreprise TETRA, a analys\u00e9 le projet et gr\u00e2ce \u00e0 l’utilisation en support de 2 logiciels diff\u00e9rents (MacRO 1 : pour l\u2019analyse en roche et BIOS 2.0 : pour l\u2019analyse en sol meuble), a propos\u00e9 une solution qui consiste en la mise en \u0153uvre d’un Grillage \u00e0 Haute R\u00e9sistance coupl\u00e9 avec un G\u00e9omat anti-\u00e9rosion, le MACMAT\u00ae HS 30. L\u2019association en usine d\u2019un grillage \u00e0 haute r\u00e9sistance type Steelgrid\u00ae HR 30 (grillage double torsion renforc\u00e9 par des c\u00e2bles m\u00e9talliques de 8mm ins\u00e9r\u00e9s longitudinalement dans le grillage chaque 30 cm) \u00e0 un g\u00e9omat Macmat\u00ae en polypropyl\u00e8ne permet d\u2019avoir un grillage composite qui pr\u00e9sente une r\u00e9sistance \u00e9lev\u00e9e \u00e0 la traction (177 kN\/m) et au poin\u00e7onnement (155 kN, avec une d\u00e9formation de 400 mm), tout en assurant une protection locale contre l\u2019\u00e9rosion superficielle en facilitant la pouss\u00e9e de la v\u00e9g\u00e9tation.  La r\u00e9sistance nominale \u00e0 la traction du grillage est test\u00e9e conform\u00e9ment \u00e0 la norme NF EN 10223-3:2014. La r\u00e9sistance au poin\u00e7onnement du grillage est test\u00e9e selon la norme ISO 17745 : 2016. Le MacMat HS 30 dispose du marquage CE et de la certification NF Acier. Les c\u00e2bles et les fils composants le grillage \u00e0 haute r\u00e9sistance sont rev\u00eatus de Galfan\u00ae (alliage Zn-5%Al), en accord avec la NF EN 10264-2 et 10244-2, Classe A assurant une dir\u00e9e de vie conforme aux indications de la norme NF EN 10223-3 (Annexe A). Le grillage MacMat HS 30 a \u00e9t\u00e9 maintenu en place par des ancrages scell\u00e9s dans le terrain, de longueur variable conform\u00e9ment au dimensionnement, qui ont \u00e9t\u00e9 \u00e9quip\u00e9s par des plaques \u00e0 griffes type HR-Plate. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>","protected":false},"excerpt":{"rendered":"

Initialement, le projet pr\u00e9voyait de conforter les talus par r\u00e9alisation de parois clou\u00e9es. France Maccaferri, sollicit\u00e9 par l\u2019entreprise TETRA,<\/p>\n","protected":false},"featured_media":17496,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-25570","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nRD980 RECTIFICATION DE VIRAGES - 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\/rd980-rectification-de-virages\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RD980 RECTIFICATION DE VIRAGES - Maccaferri Canada\" \/>\n<meta property=\"og:description\" content=\"Initialement, le projet pr\u00e9voyait de conforter les talus par r\u00e9alisation de parois clou\u00e9es. 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