{"id":24145,"date":"2023-05-31T10:18:18","date_gmt":"2023-05-31T08:18:18","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/autoroute-a52\/"},"modified":"2024-01-26T12:05:54","modified_gmt":"2024-01-26T11:05:54","slug":"autoroute-a52","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/autoroute-a52\/","title":{"rendered":"AUTOROUTE A52"},"content":{"rendered":"
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Probl\u00e8me<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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Construite en 1974, l\u2019autoroute A52 relie Aix-en-Provence \u00e0 Aubagne. Pour faire face \u00e0 l\u2019accroissement d\u00e9mographique et \u00e0 l\u2019attrait \u00e9conomique du territoire, l\u2019am\u00e9nagement \u00e0 2 x 3 voies de l\u2019autoroute s\u2019est r\u00e9v\u00e9l\u00e9 n\u00e9cessaire. Sur la section entre Pas de Trets et Pont de l’\u00e9toile, il a \u00e9t\u00e9 n\u00e9cessaire de prot\u00e9ger la plateforme autorouti\u00e8re contre de possibles chutes de pierres et blocs en provenance d’un d\u00e9blai rocheux datant de la construction de l’autoroute. La place disponible pour implanter les \u00e9crans \u00e9tait assez limit\u00e9e.<\/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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Dans le cadre de ces am\u00e9nagements, la soci\u00e9t\u00e9 France Maccaferri a propos\u00e9 sa barri\u00e8re RB3000WGC. Il s’agit d’une barri\u00e8re sans ancrages en pieds de poteaux, ce qui rend l’installation facile et rapide, sur tout type de site. L’implantation de la barri\u00e8re \u00e9tait r\u00e9duite par une limite de propri\u00e9t\u00e9 : afin que les haubans amont se situent sur la bonne zone, l’\u00e9cran a \u00e9t\u00e9 r\u00e9-hauss\u00e9 de 5 \u00e0 6m tout en respectant le niveau de d\u00e9formation demand\u00e9. La longueur de la structure \u00e9tant importante, il a \u00e9t\u00e9 pr\u00e9vu un poteau partag\u00e9 au milieu de la ligne. La barri\u00e8re est conforme \u00e0 l’EAD 340059-00-0106 et capable de r\u00e9sister \u00e0 l’impact d’un bloc rocheux avec un niveau d’\u00e9nergie de 3000kJ (test\u00e9 et certifi\u00e9 CE \/Cat A). En plus de l\u2019essai MEL et des deux essais SEL demand\u00e9s dans l\u2019EAD, un troisi\u00e8me test a \u00e9t\u00e9 r\u00e9alis\u00e9 avec succ\u00e8s apr\u00e8s les deux essais SEL sur le m\u00eame \u00e9cran sans r\u00e9paration avec un bloc g\u00e9n\u00e9rant une \u00e9nergie >1000 kJ. La structure d\u2019interception est constitu\u00e9e de filets m\u00e9talliques \u00e0 anneaux avec une ouverture en rideau. Afin de faciliter le montage de la barri\u00e8res, des marches ont \u00e9t\u00e9 pr\u00e9vues sur les poteaux. Les poteaux et les filets ASM arrivent d\u00e9j\u00e0 pr\u00e9assembl\u00e9s et pr\u00eats \u00e0 l\u2019h\u00e9liportage. La barri\u00e8re RB3000WGC est certifi\u00e9e sans grillage de doublage mais il est possible de le rajouter selon les disposition du ma\u00eetre d’\u0153uvre\/d’ouvrage, \u00e0 la fois sur toute la surface d\u2019interception ou seulement sur une partie. <\/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><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

Dans le cadre de ces am\u00e9nagements, la soci\u00e9t\u00e9 France Maccaferri a propos\u00e9 sa barri\u00e8re RB3000WGC. 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