{"id":24160,"date":"2023-05-31T10:18:21","date_gmt":"2023-05-31T08:18:21","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/route-dacces-au-boreon-tempete-alex-octobre-2020-glissement-6\/"},"modified":"2024-01-26T12:05:50","modified_gmt":"2024-01-26T11:05:50","slug":"route-dacces-au-boreon-tempete-alex-octobre-2020-glissement-6","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/route-dacces-au-boreon-tempete-alex-octobre-2020-glissement-6\/","title":{"rendered":"ROUTE D\u2019ACC\u00c8S AU BOR\u00c9ON-TEMP\u00caTE ALEX OCTOBRE 2020 : GLISSEMENT 6"},"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 passage de la temp\u00eate Alex dans la vall\u00e9e de la V\u00e9subie en octobre 2020 a provoqu\u00e9 d’importants d\u00e9g\u00e2ts. A certains endroits, il est tomb\u00e9 en 24h l’\u00e9quivalent d’une ann\u00e9e de pr\u00e9cipitations. La subdivision des routes de Roquebilli\u00e8re a alors d\u00fb prendre des mesures d’urgence pour r\u00e9tablir l’axe routier reliant la vall\u00e9e de la V\u00e9subie \u00e0 la plaine du Var. Elle s’est appuy\u00e9e sur les entreprises locales et l’expertise de France Maccaferri pour dimensionner et mettre en \u0153uvre les ouvrages de sout\u00e8nement en remblai. Le vallon du Bor\u00e9on, en amont de Saint Martin de V\u00e9subie, a \u00e9t\u00e9 durement touch\u00e9 par la temp\u00eate et sur les 6km de route M89 menant au lac du Bor\u00e9on. Plusieurs glissements de terrain en aval de la chauss\u00e9e ont eu lieu, n\u00e9cessitant la r\u00e9alisation d’ouvrages de confortement et de sout\u00e8nement, associ\u00e9s \u00e0 des protections hydrauliques permettant de r\u00e9sister aux sollicitations du torrent. Un d\u00e9fi de taille pour les entreprises, tant par les contraintes techniques (seul acc\u00e8s possible par le lit du torrent) que par les contraintes de planning (r\u00e9ouverture de la route pr\u00e9vue pour d\u00e9but juillet 2021). <\/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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De gros moyens mat\u00e9riels ont \u00e9t\u00e9 mis en \u0153uvre par les entreprises pour mener \u00e0 bien ce chantier dans un temps record. Des ateliers de criblage et concassage ont \u00e9t\u00e9 mis en place afin de r\u00e9cup\u00e9rer des remblais techniques servant \u00e0 la r\u00e9alisation des plateformes routi\u00e8res et des ouvrages en sols renforc\u00e9s. Des pierres ont \u00e9t\u00e9 cribl\u00e9es pour les ouvrages en gabions. Glissement 6 : Situ\u00e9 \u00e0 plus de 1300m d’altitude, ce glissement d’environ 120m de longueur sur 15m de hauteur, est particuli\u00e8rement expos\u00e9 \u00e0 l’\u00e9coulement qui vient taper contre l’extrados de la rive. Il a \u00e9t\u00e9 d\u00e9cid\u00e9 d\u2019utiliser en protection hydraulique que des blocs d’enrochements b\u00e9tonn\u00e9s. Cependant, pour soutenir le talus routier, un ouvrage en remblai renforc\u00e9 Terramesh\u00ae Vert de 9m de hauteur, associ\u00e9 \u00e0 des nappes de renforts Paragrid\u00ae HF 100 de 7 et 8m de longueur a \u00e9t\u00e9 mis en \u0153uvre, surmont\u00e9 d’un talus \u00e0 3H2V de 6m 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":"

De gros moyens mat\u00e9riels ont \u00e9t\u00e9 mis en \u0153uvre par les entreprises pour mener \u00e0 bien ce chantier dans un temps record. Des ateliers de criblage et<\/p>\n","protected":false},"featured_media":9445,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-24160","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nROUTE D\u2019ACC\u00c8S AU BOR\u00c9ON-TEMP\u00caTE ALEX OCTOBRE 2020 : GLISSEMENT 6 - 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\/route-dacces-au-boreon-tempete-alex-octobre-2020-glissement-6\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ROUTE D\u2019ACC\u00c8S AU BOR\u00c9ON-TEMP\u00caTE ALEX OCTOBRE 2020 : GLISSEMENT 6 - Maccaferri France\" \/>\n<meta property=\"og:description\" content=\"De gros moyens mat\u00e9riels ont \u00e9t\u00e9 mis en \u0153uvre par les entreprises pour mener \u00e0 bien ce chantier dans un temps record. 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