{"id":24157,"date":"2023-05-31T10:18:20","date_gmt":"2023-05-31T08:18:20","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/route-dacces-au-boreon-tempete-alex-octobre-2020-glissement-2\/"},"modified":"2024-01-26T12:05:51","modified_gmt":"2024-01-26T11:05:51","slug":"route-dacces-au-boreon-tempete-alex-octobre-2020-glissement-2","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/route-dacces-au-boreon-tempete-alex-octobre-2020-glissement-2\/","title":{"rendered":"ROUTE D\u2019ACC\u00c8S AU BOR\u00c9ON-TEMP\u00caTE ALEX OCTOBRE 2020 : GLISSEMENT 2"},"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. 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 2 : situ\u00e9 environ 500m en amont du glissement 1, il pr\u00e9sente une hauteur de 20m pour un lin\u00e9aire d’environ 110m. Un talus \u00e0 3H:2V de 13m de hauteur vient s’appuyer sur un mur en remblai renforc\u00e9 en Terramesh\u00ae Vert de 7m de hauteur inclin\u00e9 \u00e0 60\u00b0 et associ\u00e9 \u00e0 des g\u00e9ogrilles de renfort Paragrid\u00ae HF 100 de 7m. En fa\u00e7ade, sur 5m de hauteur, des gabions de 1m50 d’\u00e9paisseur viennent prot\u00e9ger l’ouvrage en sol renforc\u00e9. En pied, une protection anti affouillement en Matelas Reno\u00ae Plus de 30cm d’\u00e9paisseur et de 7m de longueur a \u00e9t\u00e9 mise en place. Enfin, 4 \u00e9pis en gabions ont \u00e9t\u00e9 install\u00e9s pour renforcer le confortement de berge. Aux extr\u00e9mit\u00e9s amont et aval de l’ouvrage des enrochements assurent le raccordement \u00e0 la berge naturelle.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>

Used Products<\/h2>
\"Gabions\"<\/div>
Gabions<\/h6>Le gabion Maccaferri est une bo\u00eete en grillage m\u00e9tallique \u00e0 double torsion de tailles variables, divis\u00e9e uniform\u00e9ment en cellules internes, interco<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div>
\"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>
\"Matelas<\/div>
Matelas Reno Plus<\/h6>Les protections traditionnelles des berges des rivi\u00e8res r\u00e9alis\u00e9es \u00e0 l\u2019aide de pierres en vrac (enrochement) n\u00e9cessitent une couche \u00e9paisse de mat\u00e9r<\/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-24157","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 2 - 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-2\/\" \/>\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 2 - 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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