{"id":24247,"date":"2023-05-31T10:18:38","date_gmt":"2023-05-31T08:18:38","guid":{"rendered":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/protection-des-digues\/"},"modified":"2024-01-26T12:05:32","modified_gmt":"2024-01-26T11:05:32","slug":"protection-des-digues","status":"publish","type":"stories","link":"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/protection-des-digues\/","title":{"rendered":"PROTECTION DES DIGUES"},"content":{"rendered":"
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Probl\u00e8me<\/h3>\n <\/div>\n <\/div>\n <\/div>\n <\/div> \n <\/div>\n
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La superficie du bassin versant de l\u2019Aude et le caract\u00e8re m\u00e9diterran\u00e9en d\u2019une partie de celui-ci sont susceptibles de g\u00e9n\u00e9rer des crues tr\u00e8s importantes. Les inondations fr\u00e9quentes depuis des ann\u00e9es de la ville de Cuxac d\u2019Aude ont conduit \u00e0 des drames tant sur le plan humain que sur le plan \u00e9conomique et tout particuli\u00e8rement celles de 2005, 2006 et la crue historique de 1999 qui ont soulign\u00e9 l\u2019urgence de r\u00e9aliser des travaux. Le programme d\u2019action de pr\u00e9vention des inondations (PAPI) sign\u00e9 en 2006 a permis de concr\u00e9tiser le programme initi\u00e9 par le SMMAR (Syndicat mixte des milieux aquatiques et des rivi\u00e8res) et le SMDA (Syndicat mixte du Delta de l\u2019Aude). Les travaux initi\u00e9s fin 2011 devraient s\u2019achever en 2014 avec la cr\u00e9ation de 10km de digues pour prot\u00e9ger 3 quartiers de Cuxac d\u2019Aude et offrir un chenal de passage le plus large possible pour les \u00e9coulements des crues de la plaine.<\/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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En cas de submersion, un ouvrage classique subit, en effet, un ph\u00e9nom\u00e8ne d\u2019\u00e9rosion, avec le risque d\u2019apparition de br\u00e8ches et, dans l\u2019hypoth\u00e8se du sc\u00e9nario le plus critique, possibilit\u00e9 de rupture et donc d\u2019effet de vague meurtri\u00e8re. Les digues en remblais sont ancr\u00e9es d\u2019un m\u00e8tre sous le terrain naturel et \u00e9quip\u00e9es, dans leur partie sommitale, d\u2019une poutre en b\u00e9ton arm\u00e9. Les protections contre l\u2019\u00e9rosion sont quant \u00e0 elles assur\u00e9es, \u00e0 l\u2019amont par un grillage anti-fouisseur (pour \u00e9viter le passage d\u2019animaux fouisseurs) coupl\u00e9 \u00e0 une g\u00e9ogrille tridimensionnelle pour r\u00e9sister \u00e0 des vitesses de 0.7m\/s \u00e0 1.4 m\/s et, c\u00f4t\u00e9 aval d\u2019un matelas Reno de 30 cm d\u2019\u00e9paisseur pour r\u00e9sister \u00e0 des vitesses de 3.2 m\/s. Ce rev\u00eatement min\u00e9ral, assure, gr\u00e2ce \u00e0 sa rugosit\u00e9, une fonction dissipative des contraintes hydrauliques. \u00c0 noter que compte tenu des vitesses d\u2019\u00e9coulement en jeu, les matelas Reno se r\u00e9v\u00e8lent, \u00e0 performances \u00e9quivalentes, moins co\u00fbteux qu\u2019une solution traditionnelle par enrochements. Le volume de mat\u00e9riaux \u00e0 mettre en \u0153uvre \u00e9tant divis\u00e9 par trois environ, avec, en corollaire, un impact paysager moindre.<\/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>
\"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>
\"Grillage<\/div>
Grillage pare-\u00e9boulis<\/h6>Le grillage Maccaferri DT est un composant essentiel de notre application MacRO d\u2019att\u00e9nuation des chutes de pierres et de protection contre les risque<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div>
\"MacMat\"<\/div>
MacMat<\/h6>Les g\u00e9omatelass sont constitu\u00e9s de filaments en mati\u00e8re synth\u00e9tique. Les filaments sont emm\u00eal\u00e9s \u00e0 chaud pour former une couche tridimensionnelle, haut<\/span>Voir\n \n <\/a>
star<\/span><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

En cas de submersion, un ouvrage classique subit, en effet, un ph\u00e9nom\u00e8ne d\u2019\u00e9rosion, avec le risque d\u2019apparition de br\u00e8ches et, dans l\u2019hypoth<\/p>\n","protected":false},"featured_media":9445,"parent":0,"menu_order":0,"template":"","stories-category":[],"stories-tag":[],"class_list":["post-24247","stories","type-stories","status-publish","has-post-thumbnail","hentry"],"acf":{"products":null,"applications":null,"solutions":null,"sectors":null},"yoast_head":"\nPROTECTION DES DIGUES - 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\/protection-des-digues\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PROTECTION DES DIGUES - Maccaferri France\" \/>\n<meta property=\"og:description\" content=\"En cas de submersion, un ouvrage classique subit, en effet, un ph\u00e9nom\u00e8ne d\u2019\u00e9rosion, avec le risque d\u2019apparition de br\u00e8ches et, dans l\u2019hypoth\" \/>\n<meta property=\"og:url\" content=\"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/protection-des-digues\/\" \/>\n<meta property=\"og:site_name\" content=\"Maccaferri France\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-26T11:05:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/maccaferri-stage.softecspa.it\/fr\/wp-content\/uploads\/2023\/02\/Success-Story-Default.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/protection-des-digues\/\",\"url\":\"https:\/\/maccaferri-stage.softecspa.it\/fr\/exemples-de-r\u00e9ussites\/protection-des-digues\/\",\"name\":\"PROTECTION DES DIGUES - 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