{"id":5706,"date":"2025-11-20T16:48:18","date_gmt":"2025-11-20T08:48:18","guid":{"rendered":"https:\/\/www.airbag.cc\/?p=5706"},"modified":"2025-12-08T10:13:08","modified_gmt":"2025-12-08T02:13:08","slug":"how-marine-salvage-airbags-and-floating-cranes-work-together-to-recover-a-sunken-ship","status":"publish","type":"post","link":"https:\/\/www.airbag.cc\/fr\/how-marine-salvage-airbags-and-floating-cranes-work-together-to-recover-a-sunken-ship\/","title":{"rendered":"Comment les airbags de sauvetage maritime et les grues flottantes travaillent ensemble pour r\u00e9cup\u00e9rer un navire coul\u00e9"},"content":{"rendered":"<p>Lorsqu'un navire coule, l'\u00e9quipe de sauvetage doit agir rapidement et utiliser les bons outils. L'un des outils les plus utiles aujourd'hui est le <strong>airbag de r\u00e9cup\u00e9ration marine<\/strong>. Ces airbags travaillent avec des grues flottantes pour soulever, stabiliser et ramener \u00e0 la surface un navire coul\u00e9. Cette m\u00e9thode est aujourd'hui largement utilis\u00e9e dans de nombreux projets de sauvetage \u00e0 travers le monde, car elle est s\u00fbre, flexible et efficace.<\/p>\n\n\n\n<p>Dans cet article, nous expliquons comment fonctionnent les airbags de sauvetage maritime, pourquoi ils sont importants et comment ils ont \u00e9t\u00e9 utilis\u00e9s lors du c\u00e9l\u00e8bre sauvetage du ferry cor\u00e9en Sewol.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-are-marine-salvage-airbags\">Qu'est-ce qu'un airbag de r\u00e9cup\u00e9ration marine ?<\/h2>\n\n\n\n<p><strong><a href=\"https:\/\/www.airbag.cc\/fr\/salvage-airbag\/\">Airbags de r\u00e9cup\u00e9ration marine<\/a><\/strong> sont des airbags en caoutchouc tr\u00e8s r\u00e9sistants, con\u00e7us pour assurer une forte flottabilit\u00e9 sous l'eau. Lorsque les plongeurs attachent ces airbags \u00e0 un navire coul\u00e9 et les remplissent d'air, chaque airbag repousse l'eau et cr\u00e9e une force ascendante. Cette force est appel\u00e9e <strong>flottabilit\u00e9<\/strong>, et contribue \u00e0 r\u00e9duire le poids effectif du navire dans l'eau.<\/p>\n\n\n\n<p>Un airbag de r\u00e9cup\u00e9ration marine est g\u00e9n\u00e9ralement livr\u00e9 avec :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>plusieurs couches de caoutchouc r\u00e9sistant et de tissu synth\u00e9tique<\/li>\n\n\n\n<li>une valve de gonflage s\u00fbre<\/li>\n\n\n\n<li>des courroies de levage pour une fixation s\u00fbre<\/li>\n\n\n\n<li>r\u00e9sistance \u00e0 la haute pression<\/li>\n<\/ul>\n\n\n\n<p>Gr\u00e2ce \u00e0 ces caract\u00e9ristiques, les airbags de r\u00e9cup\u00e9ration peuvent fonctionner en eaux profondes, par faible visibilit\u00e9 et dans des environnements marins difficiles.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-salvage-airbags-create-buoyancy\">Comment les airbags de sauvetage cr\u00e9ent la flottabilit\u00e9<\/h2>\n\n\n\n<p>L'air \u00e0 l'int\u00e9rieur du sac prend de la place et repousse l'eau environnante. Plus il repousse d'eau, plus il cr\u00e9e de flottabilit\u00e9. Une id\u00e9e simple, mais extr\u00eamement puissante.<\/p>\n\n\n\n<p>La formule de flottabilit\u00e9 est la suivante :<\/p>\n\n\n\n<p><strong>Flottabilit\u00e9 = Densit\u00e9 de l'eau \u00d7 Gravit\u00e9 \u00d7 Volume d'air<\/strong><\/p>\n\n\n\n<p>Ainsi, si l'\u00e9quipe ajoute des airbags ou utilise des airbags plus grands, la flottabilit\u00e9 augmente. C'est pourquoi un navire coul\u00e9 peut se sentir plus l\u00e9ger sous l'eau apr\u00e8s l'installation d'airbags.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-can-salvage-airbags-do\">Que peuvent faire les airbags r\u00e9cup\u00e9r\u00e9s ?<\/h2>\n\n\n\n<p>Les airbags de r\u00e9cup\u00e9ration peuvent :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Emp\u00eacher un navire de s'enfoncer davantage<\/strong><\/li>\n\n\n\n<li><strong>Soulever une partie du navire du fond de la mer<\/strong><\/li>\n\n\n\n<li><strong>Stabiliser un navire inclin\u00e9<\/strong><\/li>\n\n\n\n<li><strong>Soutenir les plongeurs pendant les travaux sous-marins<\/strong><\/li>\n\n\n\n<li><strong>Travailler ensemble avec les grues flottantes pour une r\u00e9cup\u00e9ration compl\u00e8te<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Si les airbags fournissent une force de flottaison, ils ne peuvent g\u00e9n\u00e9ralement pas soulever seuls l'ensemble du navire. Cette t\u00e2che incombe aux grues flottantes. Mais les airbags r\u00e9duisent la charge sur la grue, ce qui rend l'op\u00e9ration plus s\u00fbre et plus facile.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-real-case-nanhai-marine-salvage-airbags-used-in-the-sewol-ferry-disaster\">Cas r\u00e9el : les airbags de sauvetage maritime de NANHAI utilis\u00e9s lors de la catastrophe du ferry Sewol<\/h2>\n\n\n\n<p>L'une des applications les plus connues de la <strong>airbags de r\u00e9cup\u00e9ration marine<\/strong> a eu lieu pendant la <strong><a href=\"https:\/\/www.airbag.cc\/fr\/nanhais-rubber-pontoon-contributes-to-the-success-of-sewol-salvage\/\">2014 Naufrage du ferry Sewol en Cor\u00e9e du Sud<\/a><\/strong>. Le navire de passagers de 6 800 tonnes a coul\u00e9 rapidement dans des conditions de mer difficiles, et les sauveteurs ont d\u00fb ralentir le naufrage pour donner du temps aux plongeurs.<\/p>\n\n\n\n<p>\u00c0 partir du 18 avril, l'\u00e9quipe de sauvetage a commenc\u00e9 \u00e0 fixer des airbags autour de l'\u00e9pave.<br>Plusieurs de ces <strong><a href=\"https:\/\/www.airbag.cc\/fr\/salvage-airbag\/\">Les airbags de sauvetage maritime ont \u00e9t\u00e9 produits par NANHAI<\/a><\/strong>, un fabricant chinois bien connu dans le secteur de la r\u00e9cup\u00e9ration.<\/p>\n\n\n\n<p>Ces airbags avaient :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>capacit\u00e9 de levage \u00e9lev\u00e9e (un seul airbag peut atteindre <strong>35 tonnes<\/strong> de flottabilit\u00e9)<\/li>\n\n\n\n<li>structure en caoutchouc \u00e0 couches solides<\/li>\n\n\n\n<li>excellente durabilit\u00e9 dans les eaux \u00e0 faible visibilit\u00e9 et \u00e0 courant rapide<\/li>\n<\/ul>\n\n\n\n<p>Les airbags ont permis de stabiliser le navire et d'\u00e9viter qu'il ne continue \u00e0 couler. Ils ont \u00e9galement permis aux plongeurs de travailler plus pr\u00e8s de la coque et de pr\u00e9parer le navire pour l'op\u00e9ration de levage ult\u00e9rieure \u00e0 l'aide de grues flottantes.<\/p>\n\n\n\n<p>Ce cas montre \u00e0 quel point les airbags de sauvetage sont fiables dans le cadre d'op\u00e9rations de sauvetage internationales de grande envergure.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"500\" src=\"https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/03\/Shipwreck-Salvage.webp\" alt=\"sauvetage d&#039;\u00e9paves\" class=\"wp-image-3737\" srcset=\"https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/03\/Shipwreck-Salvage.webp 1000w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/03\/Shipwreck-Salvage-300x150.webp 300w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/03\/Shipwreck-Salvage-768x384.webp 768w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/03\/Shipwreck-Salvage-150x75.webp 150w, https:\/\/www.airbag.cc\/wp-content\/uploads\/2025\/03\/Shipwreck-Salvage-480x240.webp 480w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-floating-cranes-complete-the-job\">Comment les grues flottantes compl\u00e8tent le travail<\/h2>\n\n\n\n<p>Apr\u00e8s les airbags, le poids du navire sous l'eau est r\u00e9duit, <strong>grues flottantes<\/strong> prennent le relais. Ces grues peuvent soulever des milliers de tonnes et sont la principale source d'\u00e9nergie pour ramener l'\u00e9pave \u00e0 la surface.<\/p>\n\n\n\n<p>Les \u00e9tapes typiques sont les suivantes :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Les plongeurs v\u00e9rifient l'angle du navire, les dommages et les points de levage s\u00fbrs.<\/li>\n\n\n\n<li>Les airbags sont plac\u00e9s et gonfl\u00e9s pour augmenter la flottabilit\u00e9.<\/li>\n\n\n\n<li>De solides courroies de levage sont install\u00e9es sous la coque.<\/li>\n\n\n\n<li>Des grues flottantes soul\u00e8vent lentement le navire du fond de la mer.<\/li>\n\n\n\n<li>Le navire est ensuite scell\u00e9, pomp\u00e9 et remorqu\u00e9 jusqu'au rivage.<\/li>\n<\/ol>\n\n\n\n<p>L'utilisation des airbags en premier lieu rend le travail de la grue plus s\u00fbr et permet d'\u00e9viter une pression soudaine sur les structures endommag\u00e9es de la coque.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-why-not-install-permanent-airbags-on-ships\">Pourquoi ne pas installer des airbags permanents sur les navires ?<\/h2>\n\n\n\n<p>Certains s'interrogent :<br><strong>\u201cSi les airbags peuvent sauver un navire, pourquoi ne pas les installer sur les navires d\u00e8s le d\u00e9part ?\u201d<\/strong><\/p>\n\n\n\n<p>En th\u00e9orie, c'est possible. En r\u00e9alit\u00e9, ce n'est pas pratique.<\/p>\n\n\n\n<p>Les navires s'appuient d\u00e9j\u00e0 sur :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>compartiments \u00e9tanches<\/strong><\/li>\n\n\n\n<li><strong>conception avanc\u00e9e de la stabilit\u00e9<\/strong><\/li>\n\n\n\n<li><strong>portes \u00e0 fermeture automatique<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Les grands airbags sont trop lourds, ont besoin d'espace et ne peuvent pas se d\u00e9ployer facilement sous l'eau. C'est pourquoi les <strong>airbags de r\u00e9cup\u00e9ration marine<\/strong> ne sont utilis\u00e9s que lors des op\u00e9rations de sauvetage et de r\u00e9cup\u00e9ration, et non dans le cadre des activit\u00e9s quotidiennes.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-final-thoughts\">R\u00e9flexions finales<\/h2>\n\n\n\n<p><strong>Airbags de r\u00e9cup\u00e9ration marine<\/strong> sont devenus l'un des outils les plus importants dans la r\u00e9cup\u00e9ration moderne des navires. Ils sont solides, flexibles, r\u00e9utilisables et s\u00fbrs. Associ\u00e9es \u00e0 des grues flottantes, elles constituent un syst\u00e8me de sauvetage efficace et fiable.<\/p>\n\n\n\n<p>L'affaire du ferry Sewol a prouv\u00e9 la valeur de cette technologie. <strong><a href=\"https:\/\/www.airbag.cc\/fr\/\">NANHA\u00cf<\/a><\/strong> Les airbags de sauvetage maritime ont jou\u00e9 un r\u00f4le cl\u00e9 dans la stabilisation de l'\u00e9pave et dans les op\u00e9rations de sauvetage. Aujourd'hui, ces airbags sont utilis\u00e9s dans les ports, les projets offshore, les secours d'urgence et l'ing\u00e9nierie sous-marine dans le monde entier.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-vivid-red-background-color has-background wp-element-button\" href=\"https:\/\/www.airbag.cc\/fr\/contact-and-support\/\">consultation gratuite<\/a><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faq\"><strong>FAQ<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-what-are-salvage-airbags-used-for\"><strong>1. \u00c0 quoi servent les airbags de r\u00e9cup\u00e9ration ?<\/strong><\/h3>\n\n\n\n<p>Les airbags de sauvetage sont utilis\u00e9s pour augmenter la flottabilit\u00e9 d'un navire coul\u00e9 ou endommag\u00e9. Ils aident \u00e0 soulever, stabiliser ou soutenir le navire pendant les op\u00e9rations de sauvetage ou de r\u00e9cup\u00e9ration.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-can-marine-airbags-lift-a-whole-ship-by-themselves\"><strong>2. Les airbags marins peuvent-ils soulever un navire entier \u00e0 eux seuls ?<\/strong><\/h3>\n\n\n\n<p>Non. Ils peuvent r\u00e9duire le poids du navire sous l'eau, mais les grands navires ont toujours besoin de grues flottantes pour effectuer l'ensemble du processus de levage.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Comment les plongeurs fixent-ils les airbags sur un navire coul\u00e9 ?<\/strong><\/h3>\n\n\n\n<p>Les plongeurs placent des ceintures de levage autour de points structurels s\u00fbrs de la coque, connectent les airbags \u00e0 ces ceintures, puis gonflent les airbags \u00e0 l'aide d'air comprim\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-are-marine-airbags-safe-to-use-in-deep-water\"><strong>4. Les airbags marins peuvent-ils \u00eatre utilis\u00e9s en toute s\u00e9curit\u00e9 en eaux profondes ?<\/strong><\/h3>\n\n\n\n<p>Oui. Les airbags de r\u00e9cup\u00e9ration de haute qualit\u00e9 sont con\u00e7us avec des couches de caoutchouc solides et peuvent fonctionner dans des conditions de faible visibilit\u00e9, de courants rapides et d'eaux profondes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-5-were-salvage-airbags-used-in-the-sewol-ferry-recovery\"><strong>5. Des airbags de secours ont-ils \u00e9t\u00e9 utilis\u00e9s pour r\u00e9cup\u00e9rer le ferry Sewol ?<\/strong><\/h3>\n\n\n\n<p>Oui. L'\u00e9quipe de secours a utilis\u00e9 plusieurs <strong>NANHAI marine salvage airbags<\/strong> pour ralentir le naufrage et stabiliser le navire avant le levage par grue.<\/p>","protected":false},"excerpt":{"rendered":"<p>When a ship sinks, the rescue team must act fast and use the right tools. One of the most useful tools today is the marine salvage<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5706","post","type-post","status-publish","format-standard","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.7.1 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>How Marine Salvage Airbags and Floating Cranes Work Together to Recover a Sunken Ship - pneumatic fenders_yokohama fender_vessel fender-NanHai Groups Marine<\/title>\n<meta name=\"description\" content=\"Marine salvage airbags designed for safe ship lifting and refloating. 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