{"id":24055,"date":"2023-05-31T10:18:01","date_gmt":"2023-05-31T08:18:01","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/travaux-de-protection-au-hameau-du-chambon\/"},"modified":"2024-01-26T12:06:12","modified_gmt":"2024-01-26T11:06:12","slug":"travaux-de-protection-au-hameau-du-chambon","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/travaux-de-protection-au-hameau-du-chambon\/","title":{"rendered":"TRAVAUX DE PROTECTION \u00a0AU HAMEAU DU CHAMBON"},"content":{"rendered":"
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Probl\u00e8me<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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Le hameau du Chambon, et plus particuli\u00e8rement le versant Est surplombant la RD213, \u00e9tait confront\u00e9 \u00e0 un risque de chutes de blocs. Des travaux ont \u00e9t\u00e9 pr\u00e9conis\u00e9s par la commune des Deux Alpes et l’ONF afin d’y rem\u00e9dier, par la mise en place de deux lignes d’\u00e9crans de 70ml et de confortements d’instabilit\u00e9s rocheuses avec des filets de c\u00e2bles. <\/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’\u00e9cran install\u00e9 en deux lignes de 70ml sur une hauteur de 4m est un \u00e9cran dynamique de type RB2000 capable de r\u00e9sister \u00e0 l’impact d’un bloc rocheux avec un niveau d’\u00e9nergie de 2000kJ. Il s’agit de la premi\u00e8re installation en France de ce nouvel \u00e9cran d\u00e9velopp\u00e9 par Maccaferri avec un syst\u00e8me de frein innovant permettant d’obtenir des performances \u00e9lev\u00e9es en termes : *de hauteur r\u00e9siduelle (71%). *d\u2019\u00e9longation (6,40m). L’\u00e9cran RB2000 a les avantages suivants : *absence d’ouverture lat\u00e9rale. *nouvelle conception de poteau avec des marches qui facilitent la mise en \u0153uvre des composants et l\u2019acc\u00e8s en t\u00eate des poteaux. *filet en ouverture en rideau qui arrive sur chantier d\u00e9j\u00e0 coupl\u00e9 au poteau. *syst\u00e8me d\u2019accrochage des haubans amont au poteau qui permet une simple installation et d\u00e9sinstallation en cas d\u2019impact, afin de faciliter les op\u00e9rations d\u2019entretien. *lors des tests (conformes \u00e0 l’EAD 340059-00-0106) la structure d\u2019interception secondaire (grillage de doublage) n\u2019a pas \u00e9t\u00e9 install\u00e9e, laissant la possibilit\u00e9 au ma\u00eetre d\u2019ouvrage d\u2019installer ou pas un grillage de doublage qui pourrait \u00eatre positionn\u00e9 seulement sur la partie basse de l\u2019\u00e9cran, conform\u00e9ment aux sp\u00e9cification de l’EAD. *cet \u00e9cran a \u00e9t\u00e9 test\u00e9 en respectant les exigences de l’EAD : un test avec un premier \u00e9cran sur lequel un bloc a \u00e9t\u00e9 l\u00e2ch\u00e9 avec une \u00e9nergie maximale (2060 kJ;MEL) et deux tests avec un deuxi\u00e8me \u00e9cran sur lequel un autre bloc a \u00e9t\u00e9 l\u00e2ch\u00e9 avec une \u00e9nergie de service (679 kJ & 705 kJ;SEL), sans r\u00e9paration entre les deux l\u00e2chers. Mais Maccaferri a \u00e9t\u00e9 encore plus loin en d\u00e9cidant de l\u00e2cher une troisi\u00e8me fois ce bloc, sur le m\u00eame \u00e9cran, et toujours sans r\u00e9paration au pr\u00e9alable : ce troisi\u00e8me test a \u00e9galement \u00e9t\u00e9 un succ\u00e8s. Les deux lignes d\u2019\u00e9cran (2 x 70 m) ont \u00e9t\u00e9 install\u00e9es en 5 jours par une \u00e9quipe de 3 personnes (hors ancrages).<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>

Used Products<\/h2>
\"Ecrans<\/div>
Ecrans pare-blocs<\/h6>Les \u00e9crans pare-blocs Maccaferri (ou barri\u00e8res de r\u00e9tention) sont con\u00e7ues pour bloquer \/ intercepter les chutes de pierres et de blocs avant qu\u2019ils ne<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div>
\"Filets\"<\/div>
Filets<\/h6>Les filets HEA (High Energy Absorption) de Maccaferri sont les produits les plus rigides de notre gamme de syst\u00e8mes de grillages Mac.RO(TM), offrant u<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

L'\u00e9cran install\u00e9 en deux lignes de 70ml sur une hauteur de 4m est un \u00e9cran dynamique de type RB2000 capable de r\u00e9sister \u00e0 l'impact d'<\/p>\n","protected":false},"featured_media":9445,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-24055","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nTRAVAUX DE PROTECTION \u00a0AU HAMEAU DU CHAMBON - 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\/travaux-de-protection-au-hameau-du-chambon\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TRAVAUX DE PROTECTION \u00a0AU HAMEAU DU CHAMBON - 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