{"id":5776,"date":"2024-03-03T02:03:32","date_gmt":"2024-03-03T01:03:32","guid":{"rendered":"https:\/\/subterranologie.com\/abris-defense-passive\/"},"modified":"2025-02-23T10:12:32","modified_gmt":"2025-02-23T09:12:32","slug":"passive-defense-shelters","status":"publish","type":"post","link":"https:\/\/subterranologie.com\/en\/passive-defense-shelters\/","title":{"rendered":"Passive defense shelters"},"content":{"rendered":"\n<div style=\"height:43px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Passive defense shelters are structures designed to provide protection against external hazards such as bombing and nuclear, biological or chemical threats. Their primary function is to provide a safe haven for people in the event of an emergency.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/subterranologie.com\/en\/passive-defense-shelters\/#Anti-aircraft_bunker\" >Anti-aircraft bunker<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/subterranologie.com\/en\/passive-defense-shelters\/#Shelter_trench\" >Shelter trench<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/subterranologie.com\/en\/passive-defense-shelters\/#Semi-buried_bunker\" >Semi-buried bunker<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/subterranologie.com\/en\/passive-defense-shelters\/#Bunker_in_the_rock\" >Bunker in the rock<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Anti-aircraft_bunker\"><\/span>Anti-aircraft bunker<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>An air-raid shelter, very common in the French capital, is a structure designed to provide protection against air attacks, such as bombings, missile attacks or air raids. These shelters are specially built to withstand explosions and flying debris generated by air attacks, thus providing a safe haven for people during times of conflict or crisis. They can be specially built underground, in reinforced concrete, in old quarries after reinforcement, integrated into existing buildings or even be independent structures. They are generally equipped with ventilation systems, air filtration and backup generators to ensure prolonged autonomy in case of emergency.<\/p>\n\n\n<div class=\"wp-block-visual-portfolio\">\n<div class=\"vp-portfolio vp-uid-f6ffd944 vp-id-Zf62J0\"\n\tdata-vp-layout=\"tiles\" data-vp-content-source=\"images\" data-vp-items-style=\"fade\" data-vp-items-click-action=\"popup_gallery\" data-vp-items-gap=\"15\" data-vp-items-gap-vertical=\"\" data-vp-pagination=\"load-more\" data-vp-next-page-url=\"\" data-vp-tiles-type=\"2|1,1.34|\" >\n\t<div class=\"vp-portfolio__preloader-wrap\">\n\t\t<div class=\"vp-portfolio__preloader\">\n\t\t\t<img decoding=\"async\" loading=\"eager\" src=\"https:\/\/subterranologie.com\/wp-content\/plugins\/visual-portfolio\/assets\/images\/logo-dark.svg\" alt=\"Visual Portfolio, Posts &amp; Image Gallery for WordPress\" width=\"20\" height=\"20\" data-skip-lazy>\n\t\t<\/div>\n\t<\/div>\n\t\t<div class=\"vp-portfolio__items-wrap\">\n\t\t\t\n<div 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vp-portfolio__custom-scrollbar\">\n\t\t\t\t<a\n\t\thref=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/abri-de-dfense-passive_52025186884_o-1920x2254.jpg\"\n\t\ttabindex=\"-1\" class=\"vp-portfolio__item-meta\" aria-label=\"AVIS Defense absolue de fumer\" \t>\n\t\n<h3 class=\"vp-portfolio__item-meta-title\">\n\tAVIS Defense absolue de fumer<\/h3>\n<\/a>\t\t<\/div>\n\t<\/figcaption>\n\t\t\t<\/figure>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t<div\t\tclass=\"vp-portfolio__item-wrap vp-portfolio__item-uid-b7542298\" data-vp-filter=\"\" \t\t>\n\t\t\t<template class=\"vp-portfolio__item-popup\" data-vp-popup-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/porte-anti-gaz_52023899387_o-1920x1280.jpg\" data-vp-popup-img-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/porte-anti-gaz_52023899387_o-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/porte-anti-gaz_52023899387_o-300x200.jpg 300w, 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srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-300x200.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-1024x683.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-768x512.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-1536x1024.jpg 1536w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-2048x1365.jpg 2048w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-500x333.jpg 500w, 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data-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-300x200.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-1024x683.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-768x512.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-1536x1024.jpg 1536w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-2048x1365.jpg 2048w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-500x333.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-800x533.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-1280x853.jpg 1280w\" data-sizes=\"auto\" loading=\"eager\">\n\t\t<\/a>\t<\/div>\n<\/div>\n\t<figcaption class=\"vp-portfolio__item-overlay vp-portfolio__item-overlay-text-align-bottom-center\">\n\t\t<div class=\"vp-portfolio__item-meta-wrap vp-portfolio__custom-scrollbar\">\n\t\t\t\t<a\n\t\thref=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/salle-des-machines-arage-filtration_52023899412_o-1920x1280.jpg\"\n\t\ttabindex=\"-1\" class=\"vp-portfolio__item-meta\" aria-label=\"Salle des machines : a\u00e9rage et filtration\" \t>\n\t\n<h3 class=\"vp-portfolio__item-meta-title\">\n\tSalle des machines : a\u00e9rage et filtration<\/h3>\n<\/a>\t\t<\/div>\n\t<\/figcaption>\n\t\t\t<\/figure>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t<div\t\tclass=\"vp-portfolio__item-wrap vp-portfolio__item-uid-2a2c5cff\" data-vp-filter=\"\" \t\t>\n\t\t\t<template class=\"vp-portfolio__item-popup\" data-vp-popup-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1920x1280.jpg\" data-vp-popup-img-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-300x200.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1024x683.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-768x512.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1536x1024.jpg 1536w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-500x333.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-800x533.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1280x853.jpg 1280w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k.jpg 2048w\" data-vp-popup-img-size=\"1920x1280\" data-vp-popup-md-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-800x533.jpg\" data-vp-popup-md-img-size=\"800x533\" data-vp-popup-sm-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-500x333.jpg\" data-vp-popup-sm-img-size=\"500x333\">\n\t\t\t<h3 class=\"vp-portfolio__item-popup-title\">Dortoirs de l&#8217;abri<\/h3>\n\t\t<\/template>\n\t\t\t\t\t\t<figure class=\"vp-portfolio__item\">\n\t\t\t\t\n<div class=\"vp-portfolio__item-img-wrap\">\n\t<div class=\"vp-portfolio__item-img\">\n\t\t\t<a\n\t\thref=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1920x1280.jpg\"\n\t\taria-label=\"Dortoirs de l&#039;abri\" \t>\n\t\n\t\t<noscript><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1280\" data-skip-lazy src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1920x1280.jpg\" class=\"wp-image-3619\" alt=\"\" srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-300x200.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1024x683.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-768x512.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1536x1024.jpg 1536w, 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data-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-300x200.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1024x683.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-768x512.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1536x1024.jpg 1536w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-500x333.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-800x533.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1280x853.jpg 1280w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k.jpg 2048w\" data-sizes=\"auto\" loading=\"eager\">\n\t\t<\/a>\t<\/div>\n<\/div>\n\t<figcaption class=\"vp-portfolio__item-overlay vp-portfolio__item-overlay-text-align-bottom-center\">\n\t\t<div class=\"vp-portfolio__item-meta-wrap vp-portfolio__custom-scrollbar\">\n\t\t\t\t<a\n\t\thref=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52916666601_d593d1846a_k-1920x1280.jpg\"\n\t\ttabindex=\"-1\" class=\"vp-portfolio__item-meta\" aria-label=\"Dortoirs de l&#039;abri\" \t>\n\t\n<h3 class=\"vp-portfolio__item-meta-title\">\n\tDortoirs de l&#8217;abri<\/h3>\n<\/a>\t\t<\/div>\n\t<\/figcaption>\n\t\t\t<\/figure>\n\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n\t\t<\/div>\n\t\t\n<\/div>\n<\/div>\n\n\n<div style=\"height:37px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Shelter_trench\"><\/span>Shelter trench<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>During the First World War, the Passive Defense organization implemented the construction and development of shelter trenches in the form of galleries. The trenches, 1.5 to 1.8 meters wide and 2 meters high, were covered by a reinforced concrete ceiling, on which was simply placed a layer of earth, sometimes grassed, reaching up to 50 centimeters thick.<\/p>\n\n\n\n<p>This system was present in Paris as well as in the former department of the Seine (excluding the capital), totaling more than 73 km of galleries that could accommodate nearly 300,000 people.<\/p>\n\n\n\n<p>The threat being real and the workforce abundant, with soldiers and scouts mobilized for this work, the network expanded rapidly.<\/p>\n\n\n<div class=\"wp-block-visual-portfolio\">\n<div class=\"vp-portfolio vp-uid-1d5ad1e0 vp-id-fTWLV\"\n\tdata-vp-layout=\"tiles\" data-vp-content-source=\"images\" data-vp-items-style=\"fade\" data-vp-items-click-action=\"popup_gallery\" data-vp-items-gap=\"15\" data-vp-items-gap-vertical=\"\" data-vp-pagination=\"load-more\" data-vp-next-page-url=\"\" data-vp-tiles-type=\"3|1,1|\" >\n\t<div class=\"vp-portfolio__preloader-wrap\">\n\t\t<div class=\"vp-portfolio__preloader\">\n\t\t\t<img decoding=\"async\" loading=\"eager\" src=\"https:\/\/subterranologie.com\/wp-content\/plugins\/visual-portfolio\/assets\/images\/logo-dark.svg\" alt=\"Visual Portfolio, Posts &amp; Image Gallery for WordPress\" width=\"20\" height=\"20\" data-skip-lazy>\n\t\t<\/div>\n\t<\/div>\n\t\t<div class=\"vp-portfolio__items-wrap\">\n\t\t\t\n<div class=\"vp-portfolio__items vp-portfolio__items-style-fade vp-portfolio__items-show-overlay-hover\">\n\n\t\t<div\t\tclass=\"vp-portfolio__item-wrap vp-portfolio__item-uid-58191128\" data-vp-filter=\"\" \t\t>\n\t\t\t<template class=\"vp-portfolio__item-popup\" data-vp-popup-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-1920x2653.jpg\" data-vp-popup-img-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-1920x2653.jpg 1920w, 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srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-1920x2653.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-217x300.jpg 217w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-741x1024.jpg 741w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-768x1061.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-1112x1536.jpg 1112w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-1482x2048.jpg 1482w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-500x691.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-800x1105.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-1280x1769.jpg 1280w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-scaled.jpg 1853w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/noscript><img decoding=\"async\" width=\"1920\" height=\"2653\" src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-1920x2653.jpg\" class=\"wp-image-2006 vp-lazyload\" alt srcset=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMTkyMCIgaGVpZ2h0PSIyNjUzIiB2aWV3Qm94PSIwIDAgMTkyMCAyNjUzIiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-1920x2653.jpg\" data-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-1920x2653.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-217x300.jpg 217w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-741x1024.jpg 741w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Acces-au-bunker-768x1061.jpg 768w, 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class=\"vp-portfolio__item-meta\" aria-label=\"Acc\u00e8s au bunker\" \t>\n\t\n<h3 class=\"vp-portfolio__item-meta-title\">\n\tAcc\u00e8s au bunker<\/h3>\n<\/a>\t\t<\/div>\n\t<\/figcaption>\n\t\t\t<\/figure>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t<div\t\tclass=\"vp-portfolio__item-wrap vp-portfolio__item-uid-127e080e\" data-vp-filter=\"\" \t\t>\n\t\t\t<template class=\"vp-portfolio__item-popup\" data-vp-popup-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/bunker-8e-lyon_51938615996_o-1920x1307.jpg\" data-vp-popup-img-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/bunker-8e-lyon_51938615996_o-1920x1307.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/bunker-8e-lyon_51938615996_o-300x204.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/bunker-8e-lyon_51938615996_o-1024x697.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/bunker-8e-lyon_51938615996_o-768x523.jpg 768w, 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sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/noscript><img decoding=\"async\" width=\"1920\" height=\"1280\" src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/abri-tranche-sortie-escalier_51896523510_o-1920x1280.jpg\" class=\"wp-image-2004 vp-lazyload\" alt srcset=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMTkyMCIgaGVpZ2h0PSIxMjgwIiB2aWV3Qm94PSIwIDAgMTkyMCAxMjgwIiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/abri-tranche-sortie-escalier_51896523510_o-1920x1280.jpg\" data-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/abri-tranche-sortie-escalier_51896523510_o-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/abri-tranche-sortie-escalier_51896523510_o-300x200.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/abri-tranche-sortie-escalier_51896523510_o-1024x683.jpg 1024w, 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vp-portfolio__custom-scrollbar\">\n\t\t\t\t<a\n\t\thref=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/abri-tranche-sortie-escalier_51896523510_o-1920x1280.jpg\"\n\t\ttabindex=\"-1\" class=\"vp-portfolio__item-meta\" aria-label=\"Abri tranch\u00e9e sortie escalier\" \t>\n\t\n<h3 class=\"vp-portfolio__item-meta-title\">\n\tAbri tranch\u00e9e sortie escalier<\/h3>\n<\/a>\t\t<\/div>\n\t<\/figcaption>\n\t\t\t<\/figure>\n\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n\t\t<\/div>\n\t\t\n<\/div>\n<\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<iframe loading=\"lazy\" width=\"100%\" height=\"500\" frameborder=\"0\" allow=\"xr-spatial-tracking; gyroscope; accelerometer\" allowfullscreen scrolling=\"no\" src=\"https:\/\/kuula.co\/share\/NsZx0?logo=1&#038;info=0&#038;logosize=200&#038;fs=1&#038;vr=1&#038;zoom=1&#038;gyro=0&#038;autorotate=0.02&#038;thumbs=1&#038;inst=fr\"><\/iframe>\n<\/div><\/div>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Semi-buried_bunker\"><\/span>Semi-buried bunker<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Winkel Bunker <\/li>\n<\/ul>\n\n\n\n<p>Also known as concrete cigars or sugar loaves, these semi-buried bunkers designed by Leo Winkel are not very common. There are said to have been 200 constructions exclusively in Germany by 1937. The sharp, steeply inclined roof was intended to provide a small attack surface for bombs and, in the event of an impact, to ensure that the bomb would slide off, if possible without exploding. On average, Winkel bunkers are 23 m high and have a base diameter of 11.5 m. The internal volume of the L. <\/p>\n\n\n\n<p>Winkel tower was divided into nine floors: two underground and seven above ground. At the very bottom, it was planned to place a filter unit and other life support systems. The rest was given under the seats for people. The spiral staircases are to be moved to the center of the tower. The information on the lack of serious damage to the bomb shelters suggests a high efficiency of such a means of protection.<\/p>\n\n\n<div class=\"wp-block-visual-portfolio\">\n<div class=\"vp-portfolio vp-uid-77349ba7 vp-id-1Ljhn2\"\n\tdata-vp-layout=\"tiles\" data-vp-content-source=\"images\" data-vp-items-style=\"fade\" data-vp-items-click-action=\"popup_gallery\" data-vp-items-gap=\"15\" data-vp-items-gap-vertical=\"\" data-vp-pagination=\"load-more\" data-vp-next-page-url=\"\" data-vp-tiles-type=\"3|1,1|\" >\n\t<div class=\"vp-portfolio__preloader-wrap\">\n\t\t<div class=\"vp-portfolio__preloader\">\n\t\t\t<img decoding=\"async\" loading=\"eager\" src=\"https:\/\/subterranologie.com\/wp-content\/plugins\/visual-portfolio\/assets\/images\/logo-dark.svg\" alt=\"Visual Portfolio, Posts &amp; Image Gallery for WordPress\" width=\"20\" height=\"20\" data-skip-lazy>\n\t\t<\/div>\n\t<\/div>\n\t\t<div class=\"vp-portfolio__items-wrap\">\n\t\t\t\n<div class=\"vp-portfolio__items 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class=\"vp-portfolio__item-img-wrap\">\n\t<div class=\"vp-portfolio__item-img\">\n\t\t\t<a\n\t\thref=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-1920x2880.jpg\"\n\t\taria-label=\"Open image\" \t>\n\t\n\t\t<noscript><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2880\" data-skip-lazy src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-1920x2880.jpg\" class=\"wp-image-3624\" alt=\"\" srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-1920x2880.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-200x300.jpg 200w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-683x1024.jpg 683w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-768x1152.jpg 768w, 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srcset=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMTkyMCIgaGVpZ2h0PSIyODgwIiB2aWV3Qm94PSIwIDAgMTkyMCAyODgwIiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-1920x2880.jpg\" data-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-1920x2880.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-200x300.jpg 200w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-683x1024.jpg 683w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-768x1152.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-1024x1536.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-1365x2048.jpg 1365w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-500x750.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-800x1200.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-1280x1920.jpg 1280w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-scaled.jpg 1707w\" data-sizes=\"auto\" loading=\"eager\">\n\t\t<\/a>\t<\/div>\n<\/div>\n\t<div class=\"vp-portfolio__item-overlay\">\n\t\t\t<a\n\t\thref=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/53133360505_19a59c4276_5k-1920x2880.jpg\"\n\t\ttabindex=\"-1\" class=\"vp-portfolio__item-meta\" aria-label=\"Open image\" \t>\n\t\t\t<\/a>\t<\/div>\n\t\t\t\t<\/figure>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t<div\t\tclass=\"vp-portfolio__item-wrap vp-portfolio__item-uid-a83adecb\" data-vp-filter=\"\" \t\t>\n\t\t\t<template class=\"vp-portfolio__item-popup\" data-vp-popup-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1920x2693.jpg\" data-vp-popup-img-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1920x2693.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-214x300.jpg 214w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-730x1024.jpg 730w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-768x1077.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1095x1536.jpg 1095w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1460x2048.jpg 1460w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-500x701.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-800x1122.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1280x1795.jpg 1280w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-scaled.jpg 1825w\" data-vp-popup-img-size=\"1920x2693\" data-vp-popup-md-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-800x1122.jpg\" data-vp-popup-md-img-size=\"800x1122\" data-vp-popup-sm-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-500x701.jpg\" data-vp-popup-sm-img-size=\"500x701\">\n\t\t\t<h3 class=\"vp-portfolio__item-popup-title\">Sch\u00e9ma de @__ahky<\/h3>\n\t\t<\/template>\n\t\t\t\t\t\t<figure class=\"vp-portfolio__item\">\n\t\t\t\t\n<div class=\"vp-portfolio__item-img-wrap\">\n\t<div class=\"vp-portfolio__item-img\">\n\t\t\t<a\n\t\thref=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1920x2693.jpg\"\n\t\taria-label=\"Sch\u00e9ma de @__ahky\" \t>\n\t\n\t\t<noscript><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2693\" data-skip-lazy src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1920x2693.jpg\" class=\"wp-image-3757\" alt=\"\" srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1920x2693.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-214x300.jpg 214w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-730x1024.jpg 730w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-768x1077.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1095x1536.jpg 1095w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1460x2048.jpg 1460w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-500x701.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-800x1122.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1280x1795.jpg 1280w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-scaled.jpg 1825w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/noscript><img decoding=\"async\" width=\"1920\" height=\"2693\" src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1920x2693.jpg\" class=\"wp-image-3757 vp-lazyload\" alt srcset=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMTkyMCIgaGVpZ2h0PSIyNjkzIiB2aWV3Qm94PSIwIDAgMTkyMCAyNjkzIiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1920x2693.jpg\" data-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1920x2693.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-214x300.jpg 214w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-730x1024.jpg 730w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-768x1077.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1095x1536.jpg 1095w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1460x2048.jpg 1460w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-500x701.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-800x1122.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1280x1795.jpg 1280w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-scaled.jpg 1825w\" data-sizes=\"auto\" loading=\"eager\">\n\t\t<\/a>\t<\/div>\n<\/div>\n\t<figcaption class=\"vp-portfolio__item-overlay vp-portfolio__item-overlay-text-align-center\">\n\t\t<div class=\"vp-portfolio__item-meta-wrap vp-portfolio__custom-scrollbar\">\n\t\t\t\t<a\n\t\thref=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/20240504085620_IMG_9923-1-1920x2693.jpg\"\n\t\ttabindex=\"-1\" class=\"vp-portfolio__item-meta\" aria-label=\"Sch\u00e9ma de @__ahky\" \t>\n\t\n<h3 class=\"vp-portfolio__item-meta-title\">\n\tSch\u00e9ma de @__ahky<\/h3>\n<\/a>\t\t<\/div>\n\t<\/figcaption>\n\t\t\t<\/figure>\n\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n\t\t<\/div>\n\t\t\n<\/div>\n<\/div>\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Bunker_in_the_rock\"><\/span>Bunker in the rock<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Underground quarries were widely used as refuges during the war for several reasons. Unlike air raid shelters that were built or reinforced to withstand bombing raids, the purpose of these quarries was to provide an immediate and cost-effective solution for protection, particularly far from major cities.<\/p>\n\n\n\n<p>First of all, limestone or gypsum quarries are soft and easy to extract, which led to the creation of vast networks of underground quarries in many regions (\u00cele-de-France, Normandy, etc.). These quarries were often located at a significant depth below the surface, providing natural protection against aerial bombardment and ground attacks.<\/p>\n\n\n\n<p>These quarries were located on the outskirts of major cities and provided a nearby refuge for civilians. Their surface area allowed them to accommodate a large number of people and provide safe shelter for long periods of time.<\/p>\n\n\n\n<p>In addition, underground <a href=\"https:\/\/subterranologie.com\/en\/extraction-of-underground-quarry-materials\/\">quarries <\/a>were generally well ventilated, allowing occupants to breathe easily and reducing the risks associated with asphyxiation or air pollution.<\/p>\n\n\n\n<p>These underground shelters were rudimentary and damp, but they provided close and effective protection during air raids, even over several days. This is why it is quite possible to find graffiti made with charcoal or charcoal left by the populations who occupied these places, alongside the graffiti left by mushroom growers. These graffiti represent scenes from their daily lives or more exceptional events, such as paratroopers on the landing beaches or bombers.<\/p>\n\n\n<div class=\"wp-block-visual-portfolio\">\n<div class=\"vp-portfolio vp-uid-48476777 vp-id-Z25sUU9\"\n\tdata-vp-layout=\"grid\" data-vp-content-source=\"images\" data-vp-items-style=\"fade\" data-vp-items-click-action=\"popup_gallery\" data-vp-items-gap=\"15\" data-vp-items-gap-vertical=\"\" data-vp-pagination=\"load-more\" data-vp-next-page-url=\"\" data-vp-grid-columns=\"2\" >\n\t<div class=\"vp-portfolio__preloader-wrap\">\n\t\t<div class=\"vp-portfolio__preloader\">\n\t\t\t<img decoding=\"async\" loading=\"eager\" src=\"https:\/\/subterranologie.com\/wp-content\/plugins\/visual-portfolio\/assets\/images\/logo-dark.svg\" alt=\"Visual Portfolio, Posts &amp; Image Gallery for WordPress\" width=\"20\" height=\"20\" data-skip-lazy>\n\t\t<\/div>\n\t<\/div>\n\t\t<div class=\"vp-portfolio__items-wrap\">\n\t\t\t\n<div class=\"vp-portfolio__items vp-portfolio__items-style-fade vp-portfolio__items-show-overlay-hover\">\n\n\t\t<div\t\tclass=\"vp-portfolio__item-wrap vp-portfolio__item-uid-4f1739c7\" data-vp-filter=\"\" \t\t>\n\t\t\t<template class=\"vp-portfolio__item-popup\" data-vp-popup-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1920x1493.jpg\" data-vp-popup-img-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1920x1493.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-300x233.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1024x796.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-768x597.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1536x1195.jpg 1536w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-2048x1593.jpg 2048w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-500x389.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-800x622.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1280x996.jpg 1280w\" data-vp-popup-img-size=\"1920x1493\" data-vp-popup-md-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-800x622.jpg\" data-vp-popup-md-img-size=\"800x622\" data-vp-popup-sm-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-500x389.jpg\" data-vp-popup-sm-img-size=\"500x389\">\n\t\t\t<h3 class=\"vp-portfolio__item-popup-title\">Abri souterrain pour civils<\/h3>\n\t\t<\/template>\n\t\t\t\t\t\t<figure class=\"vp-portfolio__item\">\n\t\t\t\t\n<div class=\"vp-portfolio__item-img-wrap\">\n\t<div class=\"vp-portfolio__item-img\">\n\t\t\t<a\n\t\thref=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1920x1493.jpg\"\n\t\taria-label=\"Abri souterrain pour civils\" \t>\n\t\n\t\t<noscript><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1493\" data-skip-lazy src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1920x1493.jpg\" class=\"wp-image-3625\" alt=\"\" srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1920x1493.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-300x233.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1024x796.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-768x597.jpg 768w, 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srcset=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMTkyMCIgaGVpZ2h0PSIxNDkzIiB2aWV3Qm94PSIwIDAgMTkyMCAxNDkzIiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1920x1493.jpg\" data-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1920x1493.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-300x233.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1024x796.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-768x597.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-1536x1195.jpg 1536w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/Abri-souterrain-pour-civils-1-2048x1593.jpg 2048w, 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civils<\/h3>\n<\/a>\t\t<\/div>\n\t<\/figcaption>\n\t\t\t<\/figure>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t<div\t\tclass=\"vp-portfolio__item-wrap vp-portfolio__item-uid-eb7e41cd\" data-vp-filter=\"\" \t\t>\n\t\t\t<template class=\"vp-portfolio__item-popup\" data-vp-popup-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/eosr9525_52426109547_o-1920x1280.jpg\" data-vp-popup-img-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/eosr9525_52426109547_o-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/eosr9525_52426109547_o-300x200.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/eosr9525_52426109547_o-1024x683.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/eosr9525_52426109547_o-768x512.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/eosr9525_52426109547_o-1536x1024.jpg 1536w, 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anti-a\u00e9rien<\/h3>\n<\/a>\t\t<\/div>\n\t<\/figcaption>\n\t\t\t<\/figure>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t<div\t\tclass=\"vp-portfolio__item-wrap vp-portfolio__item-uid-932be400\" data-vp-filter=\"\" \t\t>\n\t\t\t<template class=\"vp-portfolio__item-popup\" data-vp-popup-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52131585692_89bed2f83b_6k.jpg\" data-vp-popup-img-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52131585692_89bed2f83b_6k.jpg 1721w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52131585692_89bed2f83b_6k-300x185.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52131585692_89bed2f83b_6k-1024x631.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52131585692_89bed2f83b_6k-768x473.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/52131585692_89bed2f83b_6k-1536x946.jpg 1536w, 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srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-300x200.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-1024x683.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-768x512.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-1536x1024.jpg 1536w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-2048x1365.jpg 2048w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-500x333.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-800x533.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-1280x853.jpg 1280w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/noscript><img decoding=\"async\" width=\"1920\" height=\"1280\" src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-1920x1280.jpg\" class=\"wp-image-3635 vp-lazyload\" alt srcset=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMTkyMCIgaGVpZ2h0PSIxMjgwIiB2aWV3Qm94PSIwIDAgMTkyMCAxMjgwIiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-src=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-1920x1280.jpg\" data-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-300x200.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-1024x683.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/26421781189_29b067942c_5k-768x512.jpg 768w, 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carri\u00e8re\" \t>\n\t\n<h3 class=\"vp-portfolio__item-meta-title\">\n\tAbri en carri\u00e8re<\/h3>\n<\/a>\t\t<\/div>\n\t<\/figcaption>\n\t\t\t<\/figure>\n\t\t\t\t\t<\/div>\n\t\t\n\t\t<div\t\tclass=\"vp-portfolio__item-wrap vp-portfolio__item-uid-c2153b4d\" data-vp-filter=\"\" \t\t>\n\t\t\t<template class=\"vp-portfolio__item-popup\" data-vp-popup-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-1920x1280.jpg\" data-vp-popup-img-srcset=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-1920x1280.jpg 1920w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-300x200.jpg 300w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-1024x683.jpg 1024w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-768x512.jpg 768w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-1536x1024.jpg 1536w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-500x333.jpg 500w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-800x533.jpg 800w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-1280x853.jpg 1280w, https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k.jpg 2048w\" data-vp-popup-img-size=\"1920x1280\" data-vp-popup-md-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-800x533.jpg\" data-vp-popup-md-img-size=\"800x533\" data-vp-popup-sm-img=\"https:\/\/subterranologie.com\/wp-content\/uploads\/2024\/03\/28164054118_5e6b406050_k-500x333.jpg\" data-vp-popup-sm-img-size=\"500x333\">\n\t\t\t<h3 class=\"vp-portfolio__item-popup-title\">Fl\u00e9chage dans 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