{"id":90749,"date":"2015-12-10T08:56:14","date_gmt":"2015-12-10T07:56:14","guid":{"rendered":"http:\/\/batijournal.com\/?p=90749"},"modified":"2019-07-15T12:13:35","modified_gmt":"2019-07-15T10:13:35","slug":"pompage-du-beton-unibeton-recompense","status":"publish","type":"post","link":"https:\/\/batijournal.com\/index.php\/pompage-du-beton-unibeton-recompense\/90749\/","title":{"rendered":"Pompage du b\u00e9ton : Unib\u00e9ton r\u00e9compens\u00e9"},"content":{"rendered":"<p>Unib\u00e9ton, filiale du Groupe Italcementi, vient de voir son expertise r\u00e9compens\u00e9e par le Prix dans la cat\u00e9gorie \u201cPompage du b\u00e9ton\u201d d\u00e9cern\u00e9 pour sa prestation sur le Barrage de Sarrans. EDF a men\u00e9 des travaux de modernisation sur ce barrage avec la cr\u00e9ation d\u2019une nouvelle galerie de vidange et d\u2019\u00e9vacuation des crues, afin d\u2019am\u00e9liorer la s\u00fbret\u00e9 \u00e0 long terme de l\u2019installation. Une des \u00e9tapes cl\u00e9s de ce chantier portait sur le percement d\u2019une galerie, de 120 m de long et de 5,5 m de diam\u00e8tre, dans la paroi rocheuse situ\u00e9e en rive gauche de l\u2019ouvrage. Unib\u00e9ton a d\u00e9velopp\u00e9 un b\u00e9ton autopla\u00e7ant avec une rh\u00e9ologie de 2H30 et mis en place par pompage sur 120 m\u00e8tres lin\u00e9aires. Inject\u00e9e par guillotine avec contr\u00f4le des injections \u00e0 chaque phase, cette formulation a \u00e9t\u00e9 con\u00e7ue pour envelopper et renforcer le blindage de la virole en acier (5 m de diam\u00e8tre) plac\u00e9e \u00e0 l\u2019int\u00e9rieur de la galerie. Unib\u00e9ton a \u00e9galement con\u00e7u des b\u00e9tons hautement techniques pour les travaux de terrassement immerg\u00e9s et de la plate-forme n\u00e9cessaire \u00e0 la stabilisation de l\u2019ouvrage r\u00e9alis\u00e9e avec des blocs b\u00e9tons coul\u00e9s sur la centrale Unib\u00e9ton d\u2019Aurillac. Les autres formulations ont \u00e9t\u00e9 destin\u00e9es \u00e0 la r\u00e9alisation du local d\u2019exploitation et du canal de dissipation (dont le r\u00f4le est de diriger le jet dans l\u2019axe du lit de la Truy\u00e8re) situ\u00e9s sur la plate-forme et surplombant de 17 m le niveau haut de l\u2019eau.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-90750\" src=\"https:\/\/batijournal.com\/wp-content\/uploads\/2015\/12\/pompage-beton-barrage-saran-225x300.jpg\" alt=\"pompage-beton-barrage-saran\" width=\"225\" height=\"300\" srcset=\"https:\/\/batijournal.com\/wp-content\/uploads\/2015\/12\/pompage-beton-barrage-saran-225x300.jpg 225w, https:\/\/batijournal.com\/wp-content\/uploads\/2015\/12\/pompage-beton-barrage-saran-112x150.jpg 112w, https:\/\/batijournal.com\/wp-content\/uploads\/2015\/12\/pompage-beton-barrage-saran-768x1024.jpg 768w, https:\/\/batijournal.com\/wp-content\/uploads\/2015\/12\/pompage-beton-barrage-saran-600x800.jpg 600w, https:\/\/batijournal.com\/wp-content\/uploads\/2015\/12\/pompage-beton-barrage-saran.jpg 797w\" sizes=\"(max-width: 225px) 100vw, 225px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Unib\u00e9ton, filiale du Groupe Italcementi, vient de voir son expertise r\u00e9compens\u00e9e par le Prix dans la cat\u00e9gorie \u201cPompage du b\u00e9ton\u201d d\u00e9cern\u00e9 pour sa prestation sur le Barrage de Sarrans. EDF a men\u00e9 des travaux de modernisation sur ce barrage avec la cr\u00e9ation d\u2019une nouvelle galerie de vidange et d\u2019\u00e9vacuation des crues, afin d\u2019am\u00e9liorer la s\u00fbret\u00e9 [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":90751,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[6340,6345],"tags":[1128],"class_list":["post-90749","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-architecture-conception","category-economie-marches","tag-beton"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pompage du b\u00e9ton : Unib\u00e9ton r\u00e9compens\u00e9<\/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:\/\/batijournal.com\/index.php\/pompage-du-beton-unibeton-recompense\/90749\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pompage du b\u00e9ton : Unib\u00e9ton r\u00e9compens\u00e9\" \/>\n<meta property=\"og:description\" content=\"Unib\u00e9ton, filiale du Groupe Italcementi, vient de voir son expertise r\u00e9compens\u00e9e par le Prix dans la cat\u00e9gorie \u201cPompage du b\u00e9ton\u201d d\u00e9cern\u00e9 pour sa prestation sur le Barrage de Sarrans. EDF a men\u00e9 des travaux de modernisation sur ce barrage avec la cr\u00e9ation d\u2019une nouvelle galerie de vidange et d\u2019\u00e9vacuation des crues, afin d\u2019am\u00e9liorer la s\u00fbret\u00e9 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/batijournal.com\/index.php\/pompage-du-beton-unibeton-recompense\/90749\/\" \/>\n<meta property=\"og:site_name\" content=\"Batijournal\" \/>\n<meta property=\"article:published_time\" content=\"2015-12-10T07:56:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-07-15T10:13:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/batijournal.com\/wp-content\/uploads\/2015\/12\/Test-epreuve_barrageSarrans.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"St\u00e9phane Miget\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@bati_journal\" \/>\n<meta name=\"twitter:site\" content=\"@bati_journal\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"St\u00e9phane Miget\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/batijournal.com\\\/index.php\\\/pompage-du-beton-unibeton-recompense\\\/90749\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/batijournal.com\\\/index.php\\\/pompage-du-beton-unibeton-recompense\\\/90749\\\/\"},\"author\":{\"name\":\"St\u00e9phane Miget\",\"@id\":\"https:\\\/\\\/batijournal.com\\\/#\\\/schema\\\/person\\\/1dc96ec6957aa1ccb25ebe78bb19f100\"},\"headline\":\"Pompage du b\u00e9ton : Unib\u00e9ton r\u00e9compens\u00e9\",\"datePublished\":\"2015-12-10T07:56:14+00:00\",\"dateModified\":\"2019-07-15T10:13:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/batijournal.com\\\/index.php\\\/pompage-du-beton-unibeton-recompense\\\/90749\\\/\"},\"wordCount\":282,\"image\":{\"@id\":\"https:\\\/\\\/batijournal.com\\\/index.php\\\/pompage-du-beton-unibeton-recompense\\\/90749\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/batijournal.com\\\/wp-content\\\/uploads\\\/2015\\\/12\\\/Test-epreuve_barrageSarrans.jpg\",\"keywords\":[\"b\u00e9ton\"],\"articleSection\":[\"Architecture &amp; 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