{"id":24199,"date":"2023-05-31T10:18:29","date_gmt":"2023-05-31T08:18:29","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/travaux-preparatoires-gare-de-metro-grand-paris-aeroport-orly\/"},"modified":"2024-01-26T12:05:43","modified_gmt":"2024-01-26T11:05:43","slug":"travaux-preparatoires-gare-de-metro-grand-paris-aeroport-orly","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/travaux-preparatoires-gare-de-metro-grand-paris-aeroport-orly\/","title":{"rendered":"TRAVAUX PR\u00c9PARATOIRES GARE DE M\u00c9TRO GRAND PARIS-A\u00c9ROPORT ORLY"},"content":{"rendered":"
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Probl\u00e8me<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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Dans le cadre du chantier du Grand Paris, la r\u00e9alisation de la gare enterr\u00e9e A\u00e9roport d’Orly n\u00e9cessitait au pr\u00e9alable la r\u00e9alisation d’un certain nombre de travaux pr\u00e9paratoires. Le march\u00e9 TPR des travaux pr\u00e9paratoires comprend en autres la d\u00e9molition d’une partie du parking P0 situ\u00e9 face aux a\u00e9rogares d’Orly Ouest et Sud. Afin de supporter la nouvelle route Nord du site, il \u00e9tait pr\u00e9vu un ouvrage en remblai renforc\u00e9 (arm\u00e9) avec un parement min\u00e9ral. C’est ouvrage est provisoire et sera recouvert et enterr\u00e9 d’ici la fin du chantier de la gare soit 4-5 ann\u00e9es. La construction de cette nouvelle gare est certifi\u00e9e Ecolabel par les A\u00e9roports de Paris avec de tr\u00e8s fortes exigences environnementales. <\/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 sollicit\u00e9e par l\u2019entreprise Eurovia a propos\u00e9 de r\u00e9aliser un remblai renforc\u00e9 parement min\u00e9ral de type Terramesh\u00ae System, d\u2019une hauteur variant entre 6,4 et 9,95m. La particularit\u00e9 de ce chantier \u00e9tait de pouvoir constituer le parement min\u00e9ral et le remblai de b\u00e9ton concass\u00e9 issu de d\u00e9molitions r\u00e9alis\u00e9es \u00e0 proximit\u00e9. L\u2019utilisation de b\u00e9ton concass\u00e9 en remblai et en mat\u00e9riau de remplissage du parement gabion, tr\u00e8s agressif m\u00e9caniquement (endommagement des renforts) et chimiquement (pr\u00e9sence de ciment \u00e0 pH \u00e9lev\u00e9) a \u00e9t\u00e9 rendu possible gr\u00e2ce \u00e0 l\u2019utilisation de renforts tr\u00e8s r\u00e9sistant chimiquement et \u00e0 l\u2019endommagement. En effet, le grillage double torsion \u00e9tait compos\u00e9 de fils rev\u00eatus d\u2019une gaine polym\u00e8re PVC et les g\u00e9ogrilles de renforts Paragrid disposaient d\u2019une gaine de protection polym\u00e8re en PEHD. Le Terramesh\u00ae system associe lors de la fabrication en usine un \u00e9l\u00e9ment de renforcement en grillage NF Acier rev\u00eatu de PVC \u00e0 un parement en gabion \u00e0 maille hexagonale double torsion. L\u2019ensemble des structures sont assembl\u00e9es et remplies in situ afin de former un ouvrage monolithique et capable d\u2019absorber de grandes d\u00e9formations sans mettre en p\u00e9ril sa r\u00e9sistance. La stabilit\u00e9 du massif est assur\u00e9e par l\u2019interaction entre les nappes de renfort et le remblai structurel mis en place \u00e0 l\u2019arri\u00e8re du parement gabion. Ces structures ont \u00e9t\u00e9 associ\u00e9es \u00e0 des g\u00e9ogrilles de renfort de type \u00ab Paragrid 100 \u00bb de longueur 6m espac\u00e9es tous les 2m de hauteur. <\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>

Used Products<\/h2>
\"Terramesh\"<\/div>
Terramesh<\/h6>La famille Terramesh\u00ae de Maccaferri comprend diff\u00e9rentes options de parement pour la construction de structures en terre stabilis\u00e9e m\u00e9caniqu<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div>
\"G\u00e9ogrilles<\/div>
G\u00e9ogrilles monoaxiales<\/h6>Les g\u00e9ogrilles sont utilis\u00e9es, principalement, \u00e0 des fins de renforcement, compte tenu de leur structure particuli\u00e8re qui leur permet de fournir la fo<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

La soci\u00e9t\u00e9 Maccaferri sollicit\u00e9e par l\u2019entreprise Eurovia a propos\u00e9 de r\u00e9aliser un remblai renforc\u00e9 parement min\u00e9ral de type Terramesh\u00ae Syst<\/p>\n","protected":false},"featured_media":9445,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-24199","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nTRAVAUX PR\u00c9PARATOIRES GARE DE M\u00c9TRO GRAND PARIS-A\u00c9ROPORT ORLY - 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-preparatoires-gare-de-metro-grand-paris-aeroport-orly\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TRAVAUX PR\u00c9PARATOIRES GARE DE M\u00c9TRO GRAND PARIS-A\u00c9ROPORT ORLY - 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