{"id":194,"date":"2020-02-17T09:41:41","date_gmt":"2020-02-17T08:41:41","guid":{"rendered":"http:\/\/spicsrl.local\/?post_type=referenze&#038;p=194"},"modified":"2024-07-30T10:41:25","modified_gmt":"2024-07-30T08:41:25","slug":"viaduc-de-plaisance-ligne-a-grande-vitesse-milan-naples-itineraire-milan-bologne","status":"publish","type":"referenze","link":"https:\/\/www.spicsrl.com\/fr\/references\/viaduc-de-plaisance-ligne-a-grande-vitesse-milan-naples-itineraire-milan-bologne\/","title":{"rendered":"Viaduc de Plaisance; Ligne \u00e0 grande vitesse Milan-Naples; Itin\u00e9raire Milan Bologne"},"content":{"rendered":"<h2>Renseignements sur le projet<\/h2>\n<p>Les viaducs Piacenza 1 et Piacenza 2 sont deux des principales \u0153uvrages d&rsquo;art construites le long de la ligne ferroviaire \u00e0 grande vitesse Milan-Naples, section Milan-Bologne, qui serpente sur une longueur d&rsquo;environ 182 km \u00e0 travers la vall\u00e9e du P\u00f4, impliquant les provinces de Milan, Lodi, Piacenza, Parme, Reggio Emilia, Mod\u00e8ne et Bologne.<\/p>\n<p>Les viaducs, situ\u00e9s dans la province de Plaisance, de respectivement 2521 et 2582 m\u00e8tres de long, se composent de 81 trav\u00e9es de 33,1 m\u00e8tres et 1 trav\u00e9e de 21,8 m plus 3 trav\u00e9es sp\u00e9ciales acier-b\u00e9ton avec de 40, 38 et 50 m\u00e8tres.<\/p>\n<p>Chacune des port\u00e9es de 33,1 et 21,8 m\u00e8tres du tablier est constitu\u00e9e d&rsquo;une poutre post-tendue pr\u00e9fabriqu\u00e9e en b\u00e9ton arm\u00e9 \u00e0 deux cellules pesant 970 tonnes.<\/p>\n<p>Les poutres sont r\u00e9alis\u00e9es dans un site de pr\u00e9fabrication situ\u00e9 \u00e0 proximit\u00e9 de l&rsquo;axe ferroviaire, site divis\u00e9 en quatre zones, en fonction des op\u00e9rations qui y sont effectu\u00e9es; la zone de pr\u00e9fabrication, la zone d&rsquo;assemblage des armatures lentes et de pr\u00e9contrainte, la centrale \u00e0 b\u00e9ton et la zone de stockage.<\/p>\n<p>Les deux premi\u00e8res zones sont construites \u00e0 l&rsquo;int\u00e9rieur de deux hangars m\u00e9talliques adjacents longitudinalement d&rsquo;environ 100 m\u00e8tres de long et 22 m\u00e8tres de large chacun.<\/p>\n<p>Le syst\u00e8me de lancement de poutres pr\u00e9fabriqu\u00e9es de 970 tonnes comprend les \u00e9quipements suivants:<\/p>\n<ul>\n<li>Chariots de transport<\/li>\n<li>\u00c9quipement de lancement<\/li>\n<\/ul>\n<p>Les chariots de transport, ayant pris la poutre de la zone de stockage, la transportent le long du remblai et du pont d\u00e9j\u00e0 realis\u00e9 jusqu&rsquo;aux \u00e9quipements de lancement positionn\u00e9s \u00e0 cheval sur la trav\u00e9e \u00e0 lancer.<\/p>\n<p>Les chariots glissent ensuite sous l&rsquo;\u00e9quipement de lancement et \u00e0 l&rsquo;int\u00e9rieur du pont inf\u00e9rieur, et apr\u00e8s avoir soulev\u00e9 la poutre au moyen des treuils de l&rsquo;\u00e9quipement, ils reculent hors du pont inf\u00e9rieur et retournent dans la zone de pr\u00e9fabrication pour prendre une nouvelle poutre.<\/p>\n<p>\u00c0 ce stade, l&rsquo;avancement du sous-pont puis l&rsquo;installation de la poutre pr\u00e9fabriqu\u00e9e sont effectu\u00e9s; une fois les op\u00e9rations de lancement de faisceaux termin\u00e9es, les \u00e9quipements de lancement avancent sur le sous-pont se positionnant pour un nouveau lancement.<\/p>\n","protected":false},"featured_media":569,"template":"","tipo-impalcato":[5],"impiego":[9],"area-geografica":[3,17],"class_list":["post-194","referenze","type-referenze","status-publish","has-post-thumbnail","hentry","tipo-impalcato-cassoni","impiego-chemin-de-fer-a-grande-vitesse","area-geografica-italia","area-geografica-piacenza"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Viaduc de Plaisance; Ligne \u00e0 grande vitesse Milan-Naples; Itin\u00e9raire Milan Bologne - SPIC s.r.l.<\/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.spicsrl.com\/fr\/references\/viaduc-de-plaisance-ligne-a-grande-vitesse-milan-naples-itineraire-milan-bologne\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Viaduc de Plaisance; 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