{"id":73466,"date":"2025-09-17T12:46:45","date_gmt":"2025-09-17T11:46:45","guid":{"rendered":"https:\/\/lasentinelle.dz\/?p=73466"},"modified":"2025-09-17T12:46:46","modified_gmt":"2025-09-17T11:46:46","slug":"le-plus-grand-viaduc-dafrique-bientot-receptionne","status":"publish","type":"post","link":"https:\/\/lasentinelle.dz\/index.php\/2025\/09\/17\/le-plus-grand-viaduc-dafrique-bientot-receptionne\/","title":{"rendered":"Le plus grand viaduc d&rsquo;Afrique bient\u00f4t r\u00e9ceptionn\u00e9"},"content":{"rendered":"\n<p>La ligne ferroviaire B\u00e9char-Gara Djebilet (Tindouf) sera mise en service avec la mobilisation quotidienne de 10 trains en moyenne, destin\u00e9s \u00e0 assurer le fret des produits miniers et des marchandises et le transport des voyageurs, confirmant l&rsquo;ampleur strat\u00e9gique de ce m\u00e9gaprojet de 950 kilom\u00e8tres qui r\u00e9volutionnera le transport ferroviaire dans le sud-ouest du pays.<\/p>\n\n\n\n<p>Au c\u0153ur de cette infrastructure colossale, le viaduc de l&rsquo;Oued Daoura constitue la pi\u00e8ce ma\u00eetresse technique du projet. D&rsquo;une longueur exceptionnelle de 4,11 kilom\u00e8tres et culminant \u00e0 12 m\u00e8tres de hauteur, cet ouvrage d&rsquo;art surpasse tous les records continentaux en mati\u00e8re de construction ferroviaire. L&rsquo;Agence nationale d&rsquo;\u00e9tudes et de suivi de la r\u00e9alisation des investissements ferroviaires a diffus\u00e9 lundi de nouvelles images a\u00e9riennes spectaculaires, film\u00e9es par drone, r\u00e9v\u00e9lant l&rsquo;\u00e9tat d&rsquo;avancement remarquable des travaux de ce g\u00e9ant de b\u00e9ton et d&rsquo;acier. La complexit\u00e9 technique de cette r\u00e9alisation mobilise des moyens industriels consid\u00e9rables. La construction n\u00e9cessite l&rsquo;installation de 1 170 poutres pr\u00e9fabriqu\u00e9es en b\u00e9ton pr\u00e9contraint, soutenues par 1 432 pieux de fondation et 116 piles de sout\u00e8nement. Cette architecture monumentale repose sur 118 semelles de fondation et comprend 117 tabliers, le tout r\u00e9alis\u00e9 avec un b\u00e9ton sp\u00e9cial adapt\u00e9 aux contraintes de ce type d&rsquo;ouvrage exceptionnel. L&rsquo;entreprise chinoise China Railway Construction Corporation Limited, partenaire technique du projet, d\u00e9ploie des \u00e9quipements sp\u00e9cialis\u00e9s pour la pose des poutres et le rabotage des pieux, permettant d&rsquo;acc\u00e9l\u00e9rer significativement les cadences de r\u00e9alisation. L&rsquo;impact \u00e9conomique de cette infrastructure d\u00e9passe largement les consid\u00e9rations techniques. Le projet vise principalement la valorisation du gisement de minerai de fer de Gara Djebilet, estim\u00e9 \u00e0 plus de 1,7 milliard de tonnes de r\u00e9serves exploitables, transformant l&rsquo;Alg\u00e9rie en acteur majeur de l&rsquo;industrie mini\u00e8re africaine. Cette ligne ferroviaire strat\u00e9gique permettra l&rsquo;acheminement s\u00e9curis\u00e9 des trains min\u00e9raliers, des convois de marchandises et des services voyageurs, cr\u00e9ant un corridor de d\u00e9veloppement \u00e9conomique entre le sud-ouest et le nord du territoire national.<\/p>\n\n\n\n<p>L&rsquo;Alg\u00e9rie pr\u00e9voit d&rsquo;\u00e9tendre son r\u00e9seau ferroviaire de 4 787 kilom\u00e8tres actuellement \u00e0 15 000 kilom\u00e8tres d&rsquo;ici 2030, pla\u00e7ant ce projet dans une vision d&rsquo;am\u00e9nagement territorial ambitieuse. L&rsquo;ampleur du chantier se mesure \u00e9galement \u00e0 travers les 1 431 ouvrages d&rsquo;art en cours de r\u00e9alisation ou d\u00e9j\u00e0 achev\u00e9s le long des 950 km du parcours de la ligne ferroviaire. Cette gigantesque entreprise comprend 45 ponts ferroviaires, 48 ponts routiers et 1 338 ouvrages hydrauliques, illustrant la dimension continentale de ce projet qui repositionnera durablement l&rsquo;Alg\u00e9rie comme hub ferroviaire africain. La mise en service de cette infrastructure, pr\u00e9vue initialement pour fin 2025, pourrait m\u00eame intervenir avant les d\u00e9lais contractuels selon les d\u00e9clarations r\u00e9centes de l&rsquo;ANESRIF, t\u00e9moignant de la mobilisation exceptionnelle des \u00e9quipes de construction dans des conditions climatiques extr\u00eames du Sahara alg\u00e9rien. Parall\u00e8lement aux travaux du viaduc, l&rsquo;installation des voies progresse rapidement gr\u00e2ce au d\u00e9ploiement d&rsquo;une unit\u00e9 de soudage automatique des rails appartenant \u00e0 l&rsquo;entreprise INFRARAIL. Cette technologie de pointe permet la production quotidienne de 1 620 m\u00e8tres de voies soud\u00e9es, explique l\u2019Anesrif sur son compte facebook officiel, acc\u00e9l\u00e9rant consid\u00e9rablement le rythme de pose sur l&rsquo;ensemble du trac\u00e9 et garantissant une qualit\u00e9 de soudure optimale pour supporter le trafic intensif pr\u00e9vu sur cette ligne strat\u00e9gique.<\/p>\n\n\n\n<p>Sabrina Aziouez<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La ligne ferroviaire B\u00e9char-Gara Djebilet (Tindouf) sera mise en service avec la mobilisation quotidienne de 10 trains en moyenne, destin\u00e9s<\/p>\n","protected":false},"author":6,"featured_media":73467,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"default","_twitter_share_type":"default","_linkedin_share_type":"default","_pinterest_share_type":"default","_linkedin_share_type_page":"","_instagram_share_type":"default","_medium_share_type":"default","_threads_share_type":"default","_google_business_share_type":"default","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[52,29],"tags":[],"class_list":["post-73466","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-a-la-une","category-economie"],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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