{"id":110740,"date":"2025-10-29T08:00:53","date_gmt":"2025-10-29T07:00:53","guid":{"rendered":"https:\/\/www.maccaferri.com\/fr\/success-stories\/rd35-travaux-de-securisation-canyon-et-tunnel-des-ecouges\/"},"modified":"2026-02-16T15:39:18","modified_gmt":"2026-02-16T14:39:18","slug":"rd35-travaux-de-securisation-canyon-et-tunnel-des-ecouges","status":"publish","type":"stories","link":"https:\/\/www.maccaferri.com\/fr\/exemples-de-r\u00e9ussites\/rd35-travaux-de-securisation-canyon-et-tunnel-des-ecouges\/","title":{"rendered":"RD35 TRAVAUX DE SECURISATION CANYON ET TUNNEL DES ECOUGES"},"content":{"rendered":"
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    \"\"<\/div>\n <\/div>\n <\/div>\n
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    Mise en oeuvre \u00e9cran pare-blocs RB3000<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    \"\"<\/div>\n <\/div>\n <\/div>\n
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    Mise en oeuvre \u00e9cran pare-blocs RB3000<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    \"\"<\/div>\n <\/div>\n <\/div>\n
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    Ecrans pare-blocs<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    \"\"<\/div>\n <\/div>\n <\/div>\n
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    Ecrans pare-blocs<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n

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    2691-rd35-travaux-de-securisation-canyon-et-tunnel-des-ecouges-header.jpg<\/p>\n \n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <\/div>\n <\/div>

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    Challenge<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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    Apr\u00e8s plusieurs interventions d’urgence ponctuelles, le D\u00e9partement de l’Is\u00e8re a engag\u00e9 depuis 2016 une importante campagne pluriannuelle de s\u00e9curisation de la RD35 dans le canyon des Ecouges, entre Rencurel et Saint-Gervais, cette portion de route \u00e9tant particuli\u00e8rement expos\u00e9e aux risques naturels. Sur pr\u00e8s de 500 m\u00e8tres de longueur, le tunnel creus\u00e9 dans le rocher vient doubler la section en encorbellement ferm\u00e9e depuis un \u00e9boulement survenu en 2008. Des travaux de s\u00e9curisation ont eu lieu, la route a pu \u00eatre nettoy\u00e9e, ce qui a permis au D\u00e9partement de lancer les \u00e9tudes pour \u00e9tudier les conditions de sa r\u00e9ouverture. <\/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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    Quelques saisons de travaux ont d\u2019ores et d\u00e9j\u00e0 permis de s\u00e9curiser la zone en traitant les blocs instables les plus volumineux par purges, minages et confortements. La soci\u00e9t\u00e9 Hydrokarst, en charge des travaux, a fait appel \u00e0 France Maccaferri pour la fourniture de grillage ainsi que des ancrages afin de r\u00e9aliser ces travaux. Le programme de s\u00e9curisation de la RD35 s’est poursuivi avec une nouvelle phase importante qui \u00e9tait indispensable pour assurer la s\u00e9curit\u00e9 de l\u2019itin\u00e9raire, notamment pour prot\u00e9ger la route des chutes de blocs. Cinq lignes d\u2019\u00e9crans pare-blocs de trois r\u00e9sistances et caract\u00e9ristiques diff\u00e9rentes ont \u00e9t\u00e9 fournis par France Maccaferri, toutes certifi\u00e9es CE et de cat\u00e9gorie A selon l’EAD 340059-00-0106 :<\/p>\n

    – la barri\u00e8re RB 1500, sur une longueur de 70ml, en mesure de r\u00e9sister \u00e0 l’impact d’un bloc rocheux avec des niveaux d’\u00e9nergie de plus de 1500 kJ. <\/p>\n

    – la barri\u00e8re EPFM 5000, en mesure de r\u00e9sister \u00e0 l’impact d’un bloc rocheux avec des niveaux d’\u00e9nergie de plus de 5000 kJ. L\u2019EPFM 5000 a \u00e9t\u00e9 d\u00e9velopp\u00e9e avec pour objectif d\u2019\u00eatre facile \u00e0 installer. Le nombre r\u00e9duit d\u2019ancrages et la structure d\u2019interception en rideaux r\u00e9duisent consid\u00e9rablement le temps d\u2019installation. Aucun c\u00e2ble de renfort longitudinal n\u2019est n\u00e9cessaire. <\/p>\n

    – la barri\u00e8re RB3000, capable de r\u00e9sister \u00e0 l’impact d’un bloc rocheux avec un niveau d’\u00e9nergie de 3000kJ. Afin de faciliter le montage, des marches ont \u00e9t\u00e9 pr\u00e9vues sur les poteaux. Les structures d’interception arrivent d\u00e9j\u00e0 associ\u00e9es aux poteaux pour faciliter les op\u00e9rations de mise en oeuvre.<\/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 bloc<\/span>Voir\n \n <\/a>
    star<\/span><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

    Quelques saisons de travaux ont d\u2019ores et d\u00e9j\u00e0 permis de s\u00e9curiser la zone en traitant les blocs instables les plus volumineux par purges, minage<\/p>\n","protected":false},"featured_media":69217,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-110740","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":[113654],"applications":[103481,103481],"solutions":[103544],"sectors":[103454]},"yoast_head":"\nRD35 TRAVAUX DE SECURISATION CANYON ET TUNNEL DES ECOUGES - Maccaferri France<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez nos r\u00e9ussites : RD35 TRAVAUX DE SECURISATION CANYON ET TUNNEL DES ECOUGES. 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