{"id":25579,"date":"2023-05-11T11:06:55","date_gmt":"2023-05-11T09:06:55","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/ca\/success-stories\/rd-93-espenel-secteur-2-protection-contre-les-chutes-de-pierres\/"},"modified":"2023-05-11T11:06:56","modified_gmt":"2023-05-11T09:06:56","slug":"rd-93-espenel-secteur-2-protection-contre-les-chutes-de-pierres","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/ca\/fr\/success-stories\/rd-93-espenel-secteur-2-protection-contre-les-chutes-de-pierres\/","title":{"rendered":"RD 93 ESPENEL SECTEUR 2 \u2013 PROTECTION CONTRE LES CHUTES DE PIERRES"},"content":{"rendered":"
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Problem<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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Dans le d\u00e9partement de la Dr\u00f4me, la RD 93 constitue un itin\u00e9raire privil\u00e9gi\u00e9, class\u00e9 structurant, qui relie la vall\u00e9e du Rh\u00f4ne au Diois et permet d’acc\u00e9der aux d\u00e9partements voisins de l’Is\u00e8re et des Hautes-Alpes via le Col de Cabre. A l’Est de Saillans, entre les PR 33+050 et 34+170, sur le territoire du Centre Technique D\u00e9partemental de CREST, la route emprunte la rive droite de la Dr\u00f4me o\u00f9 elle est taill\u00e9e au pied d’un versant rocheux coiff\u00e9 par des falaises. Elle est ainsi expos\u00e9e \u00e0 des instabilit\u00e9s rocheuses potentielles qui peuvent nuire \u00e0 la s\u00e9curit\u00e9 des usagers. Une premi\u00e8re tranche de travaux de s\u00e9curisation a \u00e9t\u00e9 r\u00e9alis\u00e9e \u00e0 l\u2019automne 2018 sur le secteur 3 d\u00e9fini dans l\u2019\u00e9tude de projet (PR 34+196 \u00e0 34+236). Cette \u00e9tude de cas porte sur les travaux du secteur 2.<\/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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La soci\u00e9t\u00e9 Maccaferri a \u00e9t\u00e9 choisie pour fournir les \u00e9crans pare-blocs : ce sont cinq lignes d’\u00e9crans EPFM 5000 qui ont \u00e9t\u00e9 install\u00e9es. La maitrise d’ouvrage ne souhaitant pas couper la circulation, cet \u00e9cran a les avantages d’\u00eatre rapide et facile \u00e0 installer : * Aucun ancrage en pied de poteau : il a \u00e9t\u00e9 con\u00e7u et test\u00e9 sans ancrages en pied de poteau, pour augmenter la rapidit\u00e9 de pose de l\u2019ouvrage. * R\u00e9duction du nombre d\u2019ancrages : l\u2019EPFM 5000 a \u00e9t\u00e9 fabriqu\u00e9 sur-mesure pour ce chantier avec des trav\u00e9s de 13.75 m (trav\u00e9e maximale certifi\u00e9e sur le ETA = 14.00 m), pour limiter le nombre d\u2019ancrages. * H\u00e9liportable : la souplesse des poteaux et des MacRing\u00ae ont permis \u00e0 l\u2019entreprise d\u2019h\u00e9liporter poteaux et filet accroch\u00e9s ensemble, m\u00eame avec des trav\u00e9es de presque 14.00 m. * D\u00e9ploiement en rideau du filet MacRing\u00ae : la structure d\u2019interception est accroch\u00e9e aux poteaux avant le positionnement sur site, afin que les filets MacRing\u00ae puissent s\u2019ouvrir en rideau de fa\u00e7on \u00e0 r\u00e9duire le temps de mise en oeuvre de la partie hors sol de l\u2019\u00e9cran. Performances suite \u00e0 un impact MEL : * Hauteur r\u00e9siduelle de Cat\u00e9gorie A. * Faible d\u00e9formation vers l\u2019aval (8.25 m). * Aucune ouverture lat\u00e9rale entre le poteau et le filet.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>","protected":false},"excerpt":{"rendered":"

La soci\u00e9t\u00e9 Maccaferri a \u00e9t\u00e9 choisie pour fournir les \u00e9crans pare-blocs : ce sont cinq lignes d'\u00e9crans EPFM 5000 qui ont \u00e9t\u00e9 install\u00e9es. L<\/p>\n","protected":false},"featured_media":17508,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-25579","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nRD 93 ESPENEL SECTEUR 2 \u2013 PROTECTION CONTRE LES CHUTES DE PIERRES - 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\/rd-93-espenel-secteur-2-protection-contre-les-chutes-de-pierres\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RD 93 ESPENEL SECTEUR 2 \u2013 PROTECTION CONTRE LES CHUTES DE PIERRES - Maccaferri Canada\" \/>\n<meta property=\"og:description\" content=\"La soci\u00e9t\u00e9 Maccaferri a \u00e9t\u00e9 choisie pour fournir les \u00e9crans pare-blocs : ce sont cinq lignes d'\u00e9crans EPFM 5000 qui ont \u00e9t\u00e9 install\u00e9es. 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