{"id":228,"date":"2025-05-16T17:58:17","date_gmt":"2025-05-16T15:58:17","guid":{"rendered":"https:\/\/versionbeta.ovh\/gravimep\/?page_id=228"},"modified":"2025-07-07T12:19:09","modified_gmt":"2025-07-07T10:19:09","slug":"detection-danciennes-mines-et-cavites-minieres-par-microgravimetrie","status":"publish","type":"page","link":"https:\/\/versionbeta.ovh\/gravimep\/detection-des-cavites\/detection-danciennes-mines-et-cavites-minieres-par-microgravimetrie\/","title":{"rendered":"D\u00e9tection d\u2019anciennes mines et cavit\u00e9s mini\u00e8res par microgravim\u00e9trie"},"content":{"rendered":"<h1>D\u00e9tection d\u2019anciennes mines et cavit\u00e9s mini\u00e8res <br class=\"uk-visible@m\"\/>par microgravim\u00e9trie<\/p>\n<\/h1>\n<h2>Des galeries oubli\u00e9es\u2026 mais toujours pr\u00e9sentes sous vos pieds<\/p>\n<\/h2>\n<div>\n<p>De nombreuses r\u00e9gions fran\u00e7aises, et notamment les Hauts-de-France, poss\u00e8dent un pass\u00e9 minier riche. Ces anciennes exploitations souterraines (charbon, craie, fer, ardoise, calcaire\u2026) laissent derri\u00e8re elles un r\u00e9seau de galeries abandonn\u00e9es, invisibles \u00e0 la surface mais pouvant menacer la stabilit\u00e9 des terrains.<\/p>\n<p class=\"uk-text-bold uk-text-secondary\">Ces cavit\u00e9s mini\u00e8res peuvent provoquer :<\/p>\n<ul class=\"uk-list uk-list-circle uk-list-secondary\">\n<li>Des affaissements diff\u00e9r\u00e9s<\/li>\n<li>Des effondrements en surface<\/li>\n<li>Des dommages sur les b\u00e2timents ou infrastructures<\/li>\n<li>Des difficult\u00e9s \u00e0 construire ou am\u00e9nager sans risque<\/li>\n<\/ul>\n<\/div>\n<div>\n<div>\n<p>Consultez nos  <a href=\"#\">zones sensibles en Hauts-de-France<\/a><\/p>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"\/gravimep\/wp-content\/uploads\/2025\/07\/ancienne-tunnel-d-une-mine-a-charbon-dans-le-nord.jpg\" alt=\"Vue d'un tunnel minier dans les Hauts de France\"><\/p>\n<h2>Comment d\u00e9tectons-nous ces cavit\u00e9s mini\u00e8res ?<br \/>\n<\/h2>\n<div>\n<p>Chez GRAVIMEP, nous utilisons la microgravim\u00e9trie, une m\u00e9thode non invasive, parfaitement adapt\u00e9e \u00e0 l\u2019exploration de sites soup\u00e7onn\u00e9s de contenir d\u2019anciennes galeries.<\/p>\n<p class=\"uk-text-bold uk-text-secondary\">La microgravim\u00e9trie permet&nbsp;:<\/p>\n<ul class=\"uk-list uk-list-circle uk-list-secondary\">\n<li>De d\u00e9tecter des anomalies gravim\u00e9triques l\u00e9g\u00e8res dues aux galeries effondr\u00e9es<\/li>\n<li>De cibler des zones de remblai minier ou vide r\u00e9siduel<\/li>\n<li>De r\u00e9aliser un zonage pr\u00e9cis des instabilit\u00e9s potentielles<\/li>\n<\/ul>\n<\/div>\n<div>\n<div>\n<p>En savoir plus sur la  <a href=\"\/gravimep\/definition-et-principe-de-la-microgravimetrie\">microgravim\u00e9trie<\/a><\/p>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"\/gravimep\/wp-content\/uploads\/2025\/06\/etude-avec-la-methode-de-microgravimetrie-a-lesquin.jpg\" alt=\"In\u00e9genieur des sols en cours d'analyse d'un sol avec la m\u00e9thode microgravimetrie\"><\/p>\n<h2>Quand faut-il suspecter une ancienne mine ?<br \/>\n<\/h2>\n<div>\n<ul class=\"uk-list uk-list-circle uk-list-secondary\">\n<li>Terrain situ\u00e9 dans une zone historiquement exploit\u00e9e<\/li>\n<li>Pr\u00e9sence de fissures inexpliqu\u00e9es ou affaissement localis\u00e9<\/li>\n<li>Absence d\u2019\u00e9tude mini\u00e8re r\u00e9cente<\/li>\n<li>Doute sur la nature du sous-sol pour construction ou vente<\/li>\n<\/ul>\n<p class=\"uk-text-bold uk-text-secondary\">Nous intervenons sur tout le territoire, avec une forte exp\u00e9rience dans les Hauts-de-France, le Grand Est, la Normandie et le Massif Central.<\/p>\n<\/div>\n<p><img decoding=\"async\" src=\"\/gravimep\/wp-content\/uploads\/2025\/07\/visage-homme-gros-plan-interogatif.jpg\" alt=\"visage-homme-gros-plan-interogatif\"><\/p>\n<h2>Pourquoi nous faire confiance ?<\/p>\n<\/h2>\n<div>\n<p class=\"uk-text-bold uk-text-secondary\">GRAVIMEP, c\u2019est&nbsp;:<\/p>\n<ul class=\"uk-list uk-list\">\n<li>Plus de 35 ans d\u2019exp\u00e9rience en terrain minier<\/li>\n<li>Une m\u00e9thodologie pr\u00e9cise, valid\u00e9e par des centaines d\u2019\u00e9tudes<\/li>\n<li>Une \u00e9quipe exp\u00e9riment\u00e9e, form\u00e9e aux cas complexes<\/li>\n<li>Des rapports clairs, utilisables par bureaux d\u2019\u00e9tudes, collectivit\u00e9s ou assureurs<\/li>\n<\/ul>\n<\/div>\n<p><p>\n        <a href=\"#\">Consultez nos r\u00e9f\u00e9rences et \u00e9tudes de cas<\/a>\n    <\/p>\n<\/p>\n<h4>Demandez une \u00e9tude s\u00e9rieuse !<\/h4>\n<div>\n<p>R\u00e9ponse rapide \u2013 \u00c9tudes sur-mesure \u2013 Service 5j\/7\n<\/p>\n<\/div>\n<p><p>\n        <a href=\"\/gravimep\/contact\">Demandez un diagnostic de cavit\u00e9 mini\u00e8re<\/a>\n    <\/p>\n<\/p>\n<p><!--more--><br \/>\n<!-- {\"type\":\"layout\",\"children\":[{\"type\":\"section\",\"props\":{\"image_position\":\"center-center\",\"style\":\"muted\",\"title_breakpoint\":\"xl\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"vertical_align\":\"middle\",\"width\":\"default\"},\"children\":[{\"type\":\"row\",\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"padding\":\"xsmall\",\"position_sticky_breakpoint\":\"m\",\"style\":\"card-secondary\"},\"children\":[{\"type\":\"headline\",\"props\":{\"content\":\"D\\u00e9tection d\\u2019anciennes mines et cavit\\u00e9s mini\\u00e8res <br class=\\\"uk-visible@m\\\"\\\/>par microgravim\\u00e9trie\\n\\n\\n\\n\",\"text_align\":\"center\",\"title_color\":\"secondary\",\"title_element\":\"h1\",\"title_font_family\":\"default\",\"title_style\":\"h2\"}},{\"type\":\"breadcrumbs\",\"props\":{\"show_current\":true,\"show_home\":true,\"text_align\":\"center\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\",\"margin\":\"xlarge\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"vertical_align\":\"middle\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"headline\",\"props\":{\"content\":\"Des galeries oubli\\u00e9es\\u2026 mais toujours pr\\u00e9sentes sous vos pieds\\n\\n\",\"title_element\":\"h2\",\"title_style\":\"h3\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>De nombreuses r\\u00e9gions fran\\u00e7aises, et notamment les Hauts-de-France, poss\\u00e8dent un pass\\u00e9 minier riche. Ces anciennes exploitations souterraines (charbon, craie, fer, ardoise, calcaire\\u2026) laissent derri\\u00e8re elles un r\\u00e9seau de galeries abandonn\\u00e9es, invisibles \\u00e0 la surface mais pouvant menacer la stabilit\\u00e9 des terrains.<\\\/p>\\n\\n\n\n<p class=\\\"uk-text-bold uk-text-secondary\\\">Ces cavit\\u00e9s mini\\u00e8res peuvent provoquer :<\\\/p>\\n\\n\n\n<ul class=\\\"uk-list uk-list-circle uk-list-secondary\\\">\\n    \n\n<li>Des affaissements diff\\u00e9r\\u00e9s<\\\/li>\\n    \n\n<li>Des effondrements en surface<\\\/li>\\n    \n\n<li>Des dommages sur les b\\u00e2timents ou infrastructures<\\\/li>\\n    \n\n<li>Des difficult\\u00e9s \\u00e0 construire ou am\\u00e9nager sans risque<\\\/li>\\n<\\\/ul>\",\"margin\":\"default\",\"text_align\":\"justify\"}},{\"type\":\"panel\",\"props\":{\"content\":\"\n\n<p>Consultez nos  <a href=\\\"#\\\">zones sensibles en Hauts-de-France<\\\/a><\\\/p>\",\"content_column_breakpoint\":\"m\",\"content_style\":\"text-small\",\"icon\":\"link-external\",\"icon_width\":\"30\",\"image_align\":\"right\",\"image_grid_breakpoint\":\"\",\"image_grid_width\":\"auto\",\"image_svg_color\":\"emphasis\",\"image_vertical_align\":true,\"link_style\":\"default\",\"link_text\":\"Read more\",\"margin\":\"default\",\"meta_align\":\"below-title\",\"meta_element\":\"div\",\"meta_style\":\"text-meta\",\"panel_style\":\"card-primary\",\"text_align\":\"center\",\"title_align\":\"top\",\"title_element\":\"h3\",\"title_grid_breakpoint\":\"m\",\"title_grid_width\":\"1-2\",\"title_hover_style\":\"reset\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"vertical_align\":\"middle\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"image\",\"props\":{\"image\":\"wp-content\\\/uploads\\\/2025\\\/07\\\/ancienne-tunnel-d-une-mine-a-charbon-dans-le-nord.jpg\",\"image_alt\":\"Vue d'un tunnel minier dans les Hauts de France\",\"image_border\":\"rounded\",\"image_box_decoration\":\"secondary\",\"image_box_shadow\":\"large\",\"image_height\":600,\"image_loading\":true,\"image_svg_color\":\"emphasis\",\"image_width\":600,\"margin\":\"default\",\"text_align\":\"center\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\",\"margin\":\"xlarge\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"vertical_align\":\"middle\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"headline\",\"props\":{\"content\":\"Comment d\\u00e9tectons-nous ces cavit\\u00e9s mini\\u00e8res ?\\n\",\"title_element\":\"h2\",\"title_style\":\"h3\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>Chez GRAVIMEP, nous utilisons la microgravim\\u00e9trie, une m\\u00e9thode non invasive, parfaitement adapt\\u00e9e \\u00e0 l\\u2019exploration de sites soup\\u00e7onn\\u00e9s de contenir d\\u2019anciennes galeries.<\\\/p>\\n\\n\n\n<p class=\\\"uk-text-bold uk-text-secondary\\\">La microgravim\\u00e9trie permet&nbsp;:<\\\/p>\\n\\n\n\n<ul class=\\\"uk-list uk-list-circle uk-list-secondary\\\">\\n    \n\n<li>De d\\u00e9tecter des anomalies gravim\\u00e9triques l\\u00e9g\\u00e8res dues aux galeries effondr\\u00e9es<\\\/li>\\n    \n\n<li>De cibler des zones de remblai minier ou vide r\\u00e9siduel<\\\/li>\\n    \n\n<li>De r\\u00e9aliser un zonage pr\\u00e9cis des instabilit\\u00e9s potentielles<\\\/li>\\n<\\\/ul>\",\"margin\":\"default\",\"text_align\":\"justify\"}},{\"type\":\"panel\",\"props\":{\"content\":\"\n\n<p>En savoir plus sur la  <a href=\\\"definition-et-principe-de-la-microgravimetrie\\\">microgravim\\u00e9trie<\\\/a><\\\/p>\",\"content_column_breakpoint\":\"m\",\"content_style\":\"text-small\",\"icon\":\"link-external\",\"icon_width\":\"30\",\"image_align\":\"right\",\"image_grid_breakpoint\":\"\",\"image_grid_width\":\"auto\",\"image_svg_color\":\"emphasis\",\"image_vertical_align\":true,\"link_style\":\"default\",\"link_text\":\"Read more\",\"margin\":\"default\",\"meta_align\":\"below-title\",\"meta_element\":\"div\",\"meta_style\":\"text-meta\",\"panel_style\":\"card-primary\",\"text_align\":\"center\",\"title_align\":\"top\",\"title_element\":\"h3\",\"title_grid_breakpoint\":\"m\",\"title_grid_width\":\"1-2\",\"title_hover_style\":\"reset\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"order_first\":\"m\",\"position_sticky_breakpoint\":\"m\",\"vertical_align\":\"middle\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"image\",\"props\":{\"image\":\"wp-content\\\/uploads\\\/2025\\\/06\\\/etude-avec-la-methode-de-microgravimetrie-a-lesquin.jpg\",\"image_alt\":\"In\\u00e9genieur des sols en cours d'analyse d'un sol avec la m\\u00e9thode microgravimetrie\",\"image_border\":\"rounded\",\"image_box_decoration\":\"secondary\",\"image_box_shadow\":\"large\",\"image_height\":600,\"image_loading\":true,\"image_svg_color\":\"emphasis\",\"image_width\":600,\"margin\":\"default\",\"text_align\":\"center\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\"1-2,1-2\",\"margin\":\"xlarge\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"vertical_align\":\"middle\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"headline\",\"props\":{\"content\":\"Quand faut-il suspecter une ancienne mine ?\\n\",\"title_element\":\"h2\",\"title_style\":\"h3\"}},{\"type\":\"headline\",\"props\":{\"content\":\"\",\"title_color\":\"secondary\",\"title_element\":\"h3\",\"title_style\":\"h4\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<ul class=\\\"uk-list uk-list-circle uk-list-secondary\\\">\\n    \n\n<li>Terrain situ\\u00e9 dans une zone historiquement exploit\\u00e9e<\\\/li>\\n    \n\n<li>Pr\\u00e9sence de fissures inexpliqu\\u00e9es ou affaissement localis\\u00e9<\\\/li>\\n    \n\n<li>Absence d\\u2019\\u00e9tude mini\\u00e8re r\\u00e9cente<\\\/li>\\n    \n\n<li>Doute sur la nature du sous-sol pour construction ou vente<\\\/li>\\n<\\\/ul>\\n\\n\n\n<p class=\\\"uk-text-bold uk-text-secondary\\\">Nous intervenons sur tout le territoire, avec une forte exp\\u00e9rience dans les Hauts-de-France, le Grand Est, la Normandie et le Massif Central.<\\\/p>\",\"margin\":\"default\",\"text_align\":\"justify\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"vertical_align\":\"middle\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"image\",\"props\":{\"image\":\"wp-content\\\/uploads\\\/2025\\\/07\\\/visage-homme-gros-plan-interogatif.jpg\",\"image_alt\":\"visage-homme-gros-plan-interogatif\",\"image_border\":\"rounded\",\"image_box_decoration\":\"secondary\",\"image_box_shadow\":\"large\",\"image_height\":600,\"image_loading\":true,\"image_svg_color\":\"emphasis\",\"image_width\":600,\"margin\":\"default\",\"text_align\":\"center\"}}]}]}]},{\"type\":\"section\",\"props\":{\"image_position\":\"center-center\",\"style\":\"secondary\",\"title_breakpoint\":\"xl\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"vertical_align\":\"middle\",\"width\":\"default\"},\"children\":[{\"type\":\"row\",\"props\":{\"margin\":\"xlarge\",\"padding_remove_horizontal\":false,\"width\":\"xsmall\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"vertical_align\":\"middle\"},\"children\":[{\"type\":\"headline\",\"props\":{\"content\":\"Pourquoi nous faire confiance ?\\n\\n\",\"text_align\":\"center\",\"title_decoration\":\"line\",\"title_element\":\"h2\",\"title_style\":\"h3\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p class=\\\"uk-text-bold uk-text-secondary\\\">GRAVIMEP, c\\u2019est&nbsp;:<\\\/p>\\n\n\n<ul class=\\\"uk-list uk-list\\\">\\n    \n\n<li>Plus de 35 ans d\\u2019exp\\u00e9rience en terrain minier<\\\/li>\\n    \n\n<li>Une m\\u00e9thodologie pr\\u00e9cise, valid\\u00e9e par des centaines d\\u2019\\u00e9tudes<\\\/li>\\n    \n\n<li>Une \\u00e9quipe exp\\u00e9riment\\u00e9e, form\\u00e9e aux cas complexes<\\\/li>\\n    \n\n<li>Des rapports clairs, utilisables par bureaux d\\u2019\\u00e9tudes, collectivit\\u00e9s ou assureurs<\\\/li>\\n<\\\/ul>\",\"margin\":\"default\",\"text_align\":\"center\",\"text_color\":\"emphasis\",\"text_style\":\"lead\"}},{\"type\":\"button\",\"props\":{\"fullwidth\":true,\"grid_column_gap\":\"small\",\"grid_row_gap\":\"small\",\"margin\":\"default\",\"text_align\":\"center\"},\"children\":[{\"type\":\"button_item\",\"props\":{\"button_style\":\"default\",\"content\":\"Consultez nos r\\u00e9f\\u00e9rences et \\u00e9tudes de cas\",\"dialog_layout\":\"modal\",\"dialog_offcanvas_flip\":true,\"icon\":\"link-external\",\"icon_align\":\"right\",\"link\":\"#\"}}]}]}]}]},{\"type\":\"section\",\"props\":{\"image_position\":\"center-center\",\"style\":\"default\",\"title_breakpoint\":\"xl\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"vertical_align\":\"middle\",\"width\":\"default\"},\"children\":[{\"type\":\"row\",\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\",\"style\":\"tile-primary\"},\"children\":[{\"type\":\"headline\",\"props\":{\"content\":\"Demandez une \\u00e9tude s\\u00e9rieuse !\",\"text_align\":\"center\",\"title_color\":\"emphasis\",\"title_element\":\"h4\",\"title_style\":\"h3\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>R\\u00e9ponse rapide \\u2013 \\u00c9tudes sur-mesure \\u2013 Service 5j\\\/7\\n<\\\/p>\",\"margin\":\"default\",\"text_align\":\"center\",\"text_color\":\"emphasis\",\"text_style\":\"large\"}},{\"type\":\"button\",\"props\":{\"fullwidth\":true,\"grid_column_gap\":\"small\",\"grid_row_gap\":\"small\",\"margin\":\"default\",\"text_align\":\"center\"},\"children\":[{\"type\":\"button_item\",\"props\":{\"button_style\":\"default\",\"content\":\"Demandez un diagnostic de cavit\\u00e9 mini\\u00e8re\",\"dialog_layout\":\"modal\",\"dialog_offcanvas_flip\":true,\"icon\":\"users\",\"icon_align\":\"right\",\"link\":\"contact\"}}]}]}]}]}],\"version\":\"4.5.21\"} --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>D\u00e9tection d\u2019anciennes mines et cavit\u00e9s mini\u00e8res par microgravim\u00e9trie Des galeries oubli\u00e9es\u2026 mais toujours pr\u00e9sentes sous vos pieds De nombreuses r\u00e9gions fran\u00e7aises, et notamment les Hauts-de-France, poss\u00e8dent un pass\u00e9 minier riche. Ces anciennes exploitations souterraines (charbon, craie, fer, ardoise, calcaire\u2026) laissent derri\u00e8re elles un r\u00e9seau de galeries abandonn\u00e9es, invisibles \u00e0 la surface mais pouvant menacer la [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":74,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-228","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/pages\/228","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/comments?post=228"}],"version-history":[{"count":11,"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/pages\/228\/revisions"}],"predecessor-version":[{"id":528,"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/pages\/228\/revisions\/528"}],"up":[{"embeddable":true,"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/pages\/74"}],"wp:attachment":[{"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/media?parent=228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}