{"id":661,"date":"2020-11-19T12:50:58","date_gmt":"2020-11-19T12:50:58","guid":{"rendered":"https:\/\/alimak.wpengine.com\/?post_type=project&p=661"},"modified":"2021-02-04T22:18:22","modified_gmt":"2021-02-04T22:18:22","slug":"halley-survey-base-antarctica","status":"publish","type":"project","link":"https:\/\/alimak.com\/be\/project\/halley-survey-base-antarctica\/","title":{"rendered":"Station de recherche Halley"},"content":{"rendered":"\n

Imaginez vivre et travailler dans un environnement o\u00f9 les temp\u00e9ratures peuvent atteindre -50\u00b0C. Un endroit o\u00f9 les chutes de neige sont si intenses qu’elles n\u00e9cessitent une reconstruction p\u00e9riodique des b\u00e2timents \u00e9cras\u00e9s par la neige tous les dix ans environ.<\/strong> Bienvenue \u00e0 la Base antarctique Halley, qui accueille un tr\u00e8s grand nombre de chercheurs et de scientifiques tout au long de l’ann\u00e9e.<\/strong><\/p>\n\n\n\n

Parmi la liste des applications inhabituelles figure une machine fournie par Alimak au groupe Structaply Limited, \u00e0 Ross-on-Wye, dans le comt\u00e9 de Herefordshire, en 1983. Structaply fabrique des b\u00e2timents \u00e0 ossature bois isol\u00e9s et a obtenu un contrat pour la construction d’un b\u00e2timent articul\u00e9 de deux \u00e9tages destin\u00e9 \u00e0 h\u00e9berger 18 scientifiques sur la base de Halley en Antarctique. Construit directement sur la calotte glaciaire, le logement a \u00e9t\u00e9 con\u00e7u pour une dur\u00e9e de vie de 15 ans, et pendant ce temps, les chutes de neige croissantes qui g\u00e8lent, combin\u00e9es \u00e0 l’affaissement du b\u00e2timent lui-m\u00eame, le submergeront \u00e0 une profondeur maximale estim\u00e9e \u00e0 20 m\u00e8tres sous la surface (les temp\u00e9ratures estivales \u00e0 la base sont en moyenne de -30\u00b0C, les temp\u00e9ratures hivernales d’environ -50\u00b0C).<\/p>\n\n\n\n

Les consultants en services, Dale & Goldfinger, ont exig\u00e9 que l’\u00e9quipement soit garanti pour r\u00e9sister \u00e0 des temp\u00e9ratures allant jusqu’\u00e0 -50\u00b0C, et Alimak a pu garantir cette r\u00e9sistance sans avoir besoin d’une certification sp\u00e9ciale pour l’acier. Aucun autre fabricant d’ascenseurs n’\u00e9tait pr\u00eat \u00e0 r\u00e9pondre \u00e0 l’appel d’offres avec une telle exigence de temp\u00e9rature, ce qui t\u00e9moigne de la haute qualit\u00e9 de la gamme de produits standard d’Alimak.<\/p>\n\n\n\n

L’ascenseur Alimak disposait d’une capacit\u00e9 maximale de 1 150 kg et a \u00e9t\u00e9 construit pour faciliter le mouvement des mat\u00e9riaux entre le b\u00e2timent et la surface variable pendant toute la dur\u00e9e de vie du b\u00e2timent jusqu’en 1998. Alimak a fourni un ascenseur standard de la gamme, ainsi que de la graisse lubrifiante pour basses temp\u00e9ratures et un chauffage d’appoint pour l’armoire\/ l’engrenage ont \u00e9t\u00e9 fournis. L’ascenseur Alimak a \u00e9t\u00e9 choisi en raison de sa fiabilit\u00e9 totale et de sa capacit\u00e9 \u00e0 r\u00e9sister au froid extr\u00eame. Les ing\u00e9nieurs de maintenance de l’\u00e9quipe de recherche en Antarctique ont \u00e9t\u00e9 sp\u00e9cialement form\u00e9s \u00e0 l’installation et \u00e0 la maintenance de l’\u00e9quipement dans l’usine d’Alimak \u00e0 Rushden.<\/p>\n\n\n\n

Selon Structaply, le b\u00e2timent d’h\u00e9bergement, qui est log\u00e9 dans 4 tubes et fabriqu\u00e9 en contreplaqu\u00e9 double peau, peut supporter une pression d’\u00e9crasement de 9 tonnes par m\u00e8tre carr\u00e9. Le haut niveau d’isolation n\u00e9cessaire \u00e0 la survie et au confort des personnes emp\u00eachera \u00e9galement la neige fondue de geler \u00e0 nouveau sous le b\u00e2timent et de causer des dommages \u00e0 la face inf\u00e9rieure de la structure – ce qui a \u00e9t\u00e9 un probl\u00e8me important dans les b\u00e2timents con\u00e7us en acier ondul\u00e9 utilis\u00e9s auparavant.<\/p>\n\n\n\n

D\u00e9tails de l’ascenseur<\/h4>\n\n\n\n

Site: Station de recherche Halley, Barri\u00e8re de Brunt, Antarctique<\/p>\n\n\n\n

Ann\u00e9e d’installation: 1983<\/p>\n\n\n\n

Application: Station de recherche<\/p>\n\n\n\n

Type d’ascenseur: Technologie \u00e0 cr\u00e9maill\u00e8re<\/p>\n\n\n\n

Mod\u00e8le d’ascenseur: Alimak Scando M<\/p>\n\n\n\n

Capacit\u00e9: 1150 kg<\/p>\n\n\n\n

Hauteur de levage: 20 m<\/p>\n\n\n\n

<\/div>\n\n\n\n

Galerie de photos<\/h3>\n\n\n\n
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