{"id":55782,"date":"2015-05-29T23:33:40","date_gmt":"2015-05-29T21:33:40","guid":{"rendered":"http:\/\/staging.sillon38.com\/?p=55782"},"modified":"2015-05-29T23:33:40","modified_gmt":"2015-05-29T21:33:40","slug":"tunnel-du-chambon-ca-se-complique","status":"publish","type":"post","link":"https:\/\/www.sillon38.com\/blog\/2015\/05\/29\/tunnel-du-chambon-ca-se-complique\/","title":{"rendered":"Tunnel du Chambon: \u00e7a se complique!"},"content":{"rendered":"<p><span style=\"color: #000080;\">Suite \u00e0 la fermeture du tunnel du Chambon sur la RD1091 reliant     Grenoble \u00e0 Brian\u00e7on le 10 avril dernier en raison du risque     d\u2019effondrement partiel de sa vo\u00fbte d\u00fb \u00e0 un important mouvement de     terrain, le D\u00e9partement de l\u2019Is\u00e8re a imm\u00e9diatement engag\u00e9 les \u00e9tudes     puis des travaux de confortement.<br \/>\n<\/span> <span style=\"color: #000080;\"><br \/>\nLes travaux consistent \u00e0 renforcer la vo\u00fbte du tunnel par une contre     vo\u00fbte en b\u00e9ton arm\u00e9 sur la section affect\u00e9e par des mouvements     g\u00e9ologiques rep\u00e9r\u00e9s par les instruments de mesures. La     pr\u00e9fabrication du coffrage a \u00e9t\u00e9 r\u00e9alis\u00e9e par l\u2019entreprise comme     pr\u00e9vu, la livraison et l\u2019assemblage du coffrage sur site ont \u00e9t\u00e9     engag\u00e9s ce mardi.<br \/>\n<\/span> <span style=\"color: #000080;\"><br \/>\nDes d\u00e9sordres g\u00e9ologiques de plus grande ampleur sont constat\u00e9s     aujourd\u2019hui sur l\u2019ensemble du versant de montagne.<\/span><\/p>\n<p><span style=\"color: #000080;\"> Ces derniers     imposent d\u2019adapter la solution initialement retenue avec l\u2019objectif     de r\u00e9duire au maximum la dur\u00e9e du chantier, de minorer l\u2019impact de     cette situation sur les territoires, tout en m\u00e9nageant la s\u00e9curit\u00e9     des ouvriers intervenant sur le chantier.<br \/>\n<\/span> <span style=\"color: #000080;\"><br \/>\nLa seule solution technique envisageable consiste d\u00e9sormais \u00e0     d\u00e9molir la vo\u00fbte endommag\u00e9e en faisant pr\u00e9c\u00e9der cette d\u00e9molition     d\u2019injections de coulis de ciment qui doit d\u00e9marrer tr\u00e8s rapidement,     pour stabiliser la roche et pr\u00e9venir d\u2019\u00e9ventuelles chutes de blocs \u00e0     l\u2019occasion de la d\u00e9molition.<br \/>\n<\/span> <span style=\"color: #000080;\"><br \/>\nCe dispositif a \u00e9t\u00e9 convenu entre les 2 d\u00e9partements, les services     de l\u2019Etat de l\u2019Is\u00e8re et des Hautes Alpes et les maires des communes     directement impact\u00e9es lors d\u2019une r\u00e9union tenue ce 29 mai 2015.<br \/>\n<\/span> <span style=\"color: #000080;\"><br \/>\nUn nouveau point de situation sera effectu\u00e9 chaque fin de semaine.     Parall\u00e8lement\u00a0:<br \/>\n<\/span><\/p>\n<p><span style=\"color: #000080;\"> <\/span><\/p>\n<ul>\n<li><span style=\"color: #000080;\">Les moyens consacr\u00e9s au transport de personnes par bateaux         seront amplifi\u00e9s\u00a0;<\/span><\/li>\n<li><span style=\"color: #000080;\">l\u2019\u00c9tat, les collectivit\u00e9s territoriales et les chambres de         commerce et d\u2019industrie mobilisent le dispositif d\u2019aide aux         entreprises et poursuivent la recherche de moyens         compl\u00e9mentaires.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Suite \u00e0 des \u00ab\u00a0d\u00e9sordres g\u00e9ologiques de plus grande ampleur\u00a0\u00bb il est indispensable de d\u00e9molir la voute endommag\u00e9e du tunnel et la reconstruire.. Des travaux qui vont rallonger la dur\u00e9e de sa fermeture&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,73],"tags":[2994,5494],"class_list":["post-55782","post","type-post","status-publish","format-standard","hentry","category-environnement","category-transport","tag-isere","tag-tunnel-du-chambon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tunnel du Chambon: \u00e7a se complique! -<\/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:\/\/www.sillon38.com\/blog\/2015\/05\/29\/tunnel-du-chambon-ca-se-complique\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tunnel du Chambon: \u00e7a se complique! -\" \/>\n<meta property=\"og:description\" content=\"Suite \u00e0 des &quot;d\u00e9sordres g\u00e9ologiques de plus grande ampleur&quot; il est indispensable de d\u00e9molir la voute endommag\u00e9e du tunnel et la reconstruire.. 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