{"id":3937,"date":"2024-07-12T15:07:37","date_gmt":"2024-07-12T15:07:37","guid":{"rendered":"https:\/\/www.buildsoft.eu\/reference-projects\/tour-sahara-lommel\/"},"modified":"2026-07-28T12:59:55","modified_gmt":"2026-07-28T12:59:55","slug":"tour-sahara-lommel","status":"publish","type":"reference-project","link":"https:\/\/www.buildsoft.eu\/fr\/references\/tour-sahara-lommel\/","title":{"rendered":"Tour Sahara Lommel"},"content":{"rendered":"\n<p>La tour d&rsquo;observation du Sahara de Lommel est une tour de 30 m\u00e8tres construite en bois de c\u00e8dre et en acier galvanis\u00e9 \u00e0 chaud, envelopp\u00e9e dans pr\u00e8s de quatre kilom\u00e8tres de cordage \u00e0 bateau. AB Associates a utilis\u00e9 Diamonds pour maintenir cette structure \u00e9lanc\u00e9e \u00e0 trois niveaux stable sur la plus petite surface possible, dans un sol sablonneux, gr\u00e2ce \u00e0 des fondations sur pieux.<\/p>\n\n<h2 class=\"wp-block-heading\">Le projet<\/h2>\n\n<p>Depuis la tour d\u2019observation de 30 m de haut qui surplombe d\u00e9sormais la r\u00e9gion, les amateurs de nature et d\u2019architecture profitent encore mieux de la vue \u00e0 couper le souffle sur le Sahara de Lommel. Depuis trois niveaux diff\u00e9rents, les visiteurs peuvent admirer la beaut\u00e9 de cette r\u00e9serve naturelle pr\u00e9serv\u00e9e. Par la construction de cette tour d\u2019observation, la ville de Lommel veut renforcer les liens avec le paysage. Le Sahara de Lommel fait en effet partie du site r\u00e9gional de la \u2018Basse Campine\u2019 et attire chaque ann\u00e9e de nombreux promeneurs. Pour la conception de la tour, la ville de Lommel et l\u2019agence flamande pour la protection de la nature et des for\u00eats ont frapp\u00e9 \u00e0 la porte du bureau d\u2019architecture MaMu. MaMu a collabor\u00e9 avec Ateliereen \u00e0 Eindhoven, d\u00e9j\u00e0 auteur de plusieurs autres tours d\u2019observation. La construction est constitu\u00e9e de six triangles superpos\u00e9s et envelopp\u00e9s dans pr\u00e8s de quatre mille m\u00e8tres de cordage \u00e0 bateau. L\u2019alternance de cordes tendues et de cordes l\u00e2ches autour de la tour est une subtile r\u00e9f\u00e9rence aux lignes caract\u00e9ristiques du relief du Sahara.<\/p>\n\n<h2 class=\"wp-block-heading\">Grimper \u00e0 travers le paysage<\/h2>\n\n<p>Lorsque le visiteur grimpe \u00e0 l\u2019int\u00e9rieur de la tour, il admire le paysage au travers des cordages. Tant la couleur du bois de c\u00e8dre que celle de l\u2019acier galvanis\u00e9 \u00e0 chaud vont se patiner, de telle mani\u00e8re que la construction sera parfaitement int\u00e9gr\u00e9e au paysage au fil du temps. Les visiteurs peuvent observer le paysage depuis trois niveaux. Les touristes \u00e0 mobilit\u00e9 r\u00e9duite peuvent atteindre confortablement la premi\u00e8re plate-forme d\u2019o\u00f9 ils jouissent d\u2019un merveilleux point de vue sur les \u00e9tangs. De l\u00e0, le visiteur peut prendre de la hauteur et entamer l\u2019ascension de 150 marches. Les plus petits n\u2019ont pas \u00e9t\u00e9 oubli\u00e9s. Au niveau de la plate-forme sup\u00e9rieure, des trous d\u2019observation ont \u00e9t\u00e9 pr\u00e9vus dans la paroi verticale de 1,20 m de hauteur, pour que les enfants puissent aussi regarder au loin. <\/p>\n\n<h2 class=\"wp-block-heading\">Stabiliser une tour \u00e9lanc\u00e9e sur un sol meuble<\/h2>\n\n<p>La tour se trouve le long d\u2019un \u00e9tang dans une terre sablonneuse. Mais la composition du sol n\u2019a pas pos\u00e9 le moindre probl\u00e8me. La difficult\u00e9 consistait surtout \u00e0 maintenir en \u00e9quilibre cette haute structure sur une surface la plus petite possible. Des fondations sur pieux ont ici \u00e9t\u00e9 utilis\u00e9es. Depuis le 1er avril 2015, la tour est accessible au grand public.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"FAQ\">FAQ<\/h2>\n<div class=\"wp-block-uagb-faq uagb-faq__outer-wrap uagb-block-31692949 uagb-faq-icon-row uagb-faq-layout-accordion uagb-faq-expand-first-true uagb-faq-inactive-other-true uagb-faq__wrap uagb-buttons-layout-wrap uagb-faq-equal-height     \" data-faqtoggle=\"true\" role=\"tablist\"><script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"@id\":\"https:\\\/\\\/www.buildsoft.eu\\\/fr\\\/references\\\/tour-sahara-lommel\\\/\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Pourquoi une structure aussi haute et \\u00e9lanc\\u00e9e a-t-elle besoin de fondations sur pieux dans un sol sablonneux ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Une structure \\u00e9lev\\u00e9e reposant sur une petite surface concentre ses efforts de renversement sur une zone de fondation limit\\u00e9e. Dans un sol sablonneux meuble, cela ne suffit pas \\u00e0 lui seul \\u00e0 r\\u00e9sister \\u00e0 ces efforts, la charge est donc transmise par des pieux vers des couches de sol plus r\\u00e9sistantes, ce qui maintient la tour stable sans n\\u00e9cessiter une surface au sol beaucoup plus grande.\"}}]}<\/script><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-87a05934 \" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<span class=\"uagb-question\">Pourquoi une structure aussi haute et \u00e9lanc\u00e9e a-t-elle besoin de fondations sur pieux dans un sol sablonneux ?<\/span><\/div><div class=\"uagb-faq-content\"><p>Une structure \u00e9lev\u00e9e reposant sur une petite surface concentre ses efforts de renversement sur une zone de fondation limit\u00e9e. Dans un sol sablonneux meuble, cela ne suffit pas \u00e0 lui seul \u00e0 r\u00e9sister \u00e0 ces efforts, la charge est donc transmise par des pieux vers des couches de sol plus r\u00e9sistantes, ce qui maintient la tour stable sans n\u00e9cessiter une surface au sol beaucoup plus grande.<\/p><\/div><\/div><\/div>","protected":false},"author":6,"template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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