{"id":213,"date":"2025-05-16T17:09:34","date_gmt":"2025-05-16T15:09:34","guid":{"rendered":"https:\/\/versionbeta.ovh\/gravimep\/?page_id=213"},"modified":"2025-07-07T11:56:55","modified_gmt":"2025-07-07T09:56:55","slug":"detection-des-cavites-karstiques","status":"publish","type":"page","link":"https:\/\/versionbeta.ovh\/gravimep\/detection-des-cavites\/detection-des-cavites-karstiques\/","title":{"rendered":"D\u00e9tection des cavit\u00e9s karstiques"},"content":{"rendered":"<h1>D\u00e9tection des cavit\u00e9s karstiques : <br class=\"uk-visible@m\"\/>pr\u00e9venir les effondrements naturels<\/p>\n<\/h1>\n<h2>Qu\u2019est-ce qu\u2019une cavit\u00e9 karstique ?<br \/>\n<\/h2>\n<div>\n<p>Les cavit\u00e9s karstiques sont des <strong>vides naturels<\/strong> form\u00e9s dans les roches <strong>calcaires<\/strong>, <strong>gypseuses<\/strong> ou <strong>dolomitiques<\/strong>, par un ph\u00e9nom\u00e8ne de <strong>dissolution chimique<\/strong>. Avec le temps, l&rsquo;eau dissout la roche et forme des structures souterraines vari\u00e9es, notamment :<\/p>\n<ul class=\"uk-list uk-list-circle uk-list-secondary\">\n<li><strong>Karsts profonds<\/strong><\/li>\n<li><strong>Dolines<\/strong> (effondrements en surface)<\/li>\n<li><strong>Gouffres<\/strong> et <strong>puits naturels<\/strong><\/li>\n<li><strong>R\u00e9seaux de galeries souterraines<\/strong><\/li>\n<\/ul>\n<p>Ces formations sont fr\u00e9quentes dans de nombreuses r\u00e9gions fran\u00e7aises, dont les <strong>Hauts-de-France<\/strong>, o\u00f9 GRAVIMEP est implant\u00e9.<\/p>\n<\/div>\n<div>\n<div>\n<p>Voici notre <a href=\"\/gravimep\/zone-d-intervention\">zone d\u2019intervention r\u00e9gionale<\/a><\/p>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"\/gravimep\/wp-content\/uploads\/2025\/07\/cavite-karstique-dans-les-hauts-de-france.jpg\" alt=\"Cavit\u00e9 Karstique dans les Hauts de France\"><\/p>\n<h2>Quels sont les risques associ\u00e9s aux terrains karstiques ?<br \/>\n<\/h2>\n<div>\n<p class=\"uk-text-secondary uk-text-bold\">Les cavit\u00e9s karstiques peuvent provoquer :<\/p>\n<ul class=\"uk-list uk-list-circle uk-list-secondary\">\n<li><strong>Affaissements localis\u00e9s<\/strong><\/li>\n<li><strong>Effondrements brutaux de grande ampleur<\/strong><\/li>\n<li><strong>Instabilit\u00e9s sous des b\u00e2timents ou ouvrages<\/strong><\/li>\n<li><strong>Surco\u00fbts de travaux li\u00e9s \u00e0 des reprises de fondation<\/strong><\/li>\n<\/ul>\n<p class=\"uk-text-bold\">| Ces risques sont souvent invisibles en surface, d\u2019o\u00f9 la n\u00e9cessit\u00e9 d\u2019un <strong>diagnostic approfondi avant tout projet<\/strong>.<\/p>\n<\/div>\n<p><img decoding=\"async\" src=\"\/gravimep\/wp-content\/uploads\/2025\/07\/effondrement-de-chaussee-important-et-brutal.jpg\" alt=\"Effondrement de sol important dans le Nord\"><\/p>\n<h2>Comment GRAVIMEP d\u00e9tecte les cavit\u00e9s karstiques ?<br \/>\n<\/h2>\n<div>\n<p>Nous utilisons la <strong>microgravim\u00e9trie<\/strong>, une m\u00e9thode non <strong>intrusive et tr\u00e8s sensible<\/strong> aux variations de densit\u00e9 li\u00e9es aux vides souterrains.<\/p>\n<p class=\"uk-text-bold uk-text-secondary\">Cette technique est id\u00e9ale pour :<\/p>\n<ul class=\"uk-list uk-list-circle uk-list-secondary\">\n<li>Rep\u00e9rer des <strong>zones de dissolution calcaire<\/strong><\/li>\n<li>Identifier des <strong>dolines actives ou fossiles<\/strong><\/li>\n<li>Cibler les points \u00e0 forer pour v\u00e9rification<\/li>\n<li>Pr\u00e9venir des <strong>risques d\u2019effondrement diff\u00e9r\u00e9<\/strong><\/li>\n<\/ul>\n<\/div>\n<div>\n<div>\n<p>En savoir plus sur notre <a href=\"\/gravimep\/microgravimetrie\">m\u00e9thode de microgravim\u00e9trie<\/a><\/p>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"\/gravimep\/wp-content\/uploads\/2025\/06\/equipe-terrain-avec-un-gravimetre.jpg\" alt=\"Deux techniciens des sols en cours d'analyse \u00e0 l'aide d'un gravim\u00e8tre\"><\/p>\n<h3>Les \u00e9tapes d\u2019un diagnostic karstique par microgravim\u00e9trie<\/h3>\n<div>\n<p class=\"uk-text-bold uk-text-secondary\">1. \u00c9tude pr\u00e9alable du contexte g\u00e9ologique<\/p>\n<p>Analyse des cartes g\u00e9ologiques, historiques, photos a\u00e9riennes, etc.<\/p>\n<p class=\"uk-text-bold uk-text-secondary\">2. Campagne de mesures gravim\u00e9triques<\/p>\n<p>Acquisition sur maillage adapt\u00e9 (1 \u00e0 5 m\u00e8tres selon la pr\u00e9cision souhait\u00e9e)<\/p>\n<p class=\"uk-text-bold uk-text-secondary\">3. Traitement et mod\u00e9lisation<\/p>\n<p>Correction des donn\u00e9es (mar\u00e9e, drift, topographie) et cartographie des anomalies<\/p>\n<p class=\"uk-text-bold uk-text-secondary\">4. Rapport et recommandations<\/p>\n<p>Proposition de v\u00e9rifications (forages, sondages), zonage des zones \u00e0 risque<\/p>\n<\/div>\n<p><img decoding=\"async\" src=\"\/gravimep\/wp-content\/uploads\/2025\/05\/geophysicien-devant-un-ecran.jpg\" alt=\"G\u00e9ophysicien devant les donn\u00e9es \u00e0 trait\u00e9es\"><\/p>\n<h2>Dans quels cas suspecter un terrain karstique ?<\/h2>\n<div>\n<p class=\"uk-text-bold uk-text-secondary\">Vous \u00eates concern\u00e9 si votre site pr\u00e9sente :<\/p>\n<ul class=\"uk-list uk-list-circle uk-list-secondary\">\n<li>Une localisation en <strong>zone calcaire ou gypseuse<\/strong><\/li>\n<li>Des <strong>trous d\u2019origine inconnue<\/strong> en surface<\/li>\n<li>Un <strong>ancien effondrement<\/strong> non expliqu\u00e9<\/li>\n<li>Des fissures ou d\u00e9formations du b\u00e2ti<\/li>\n<\/ul>\n<\/div>\n<div>\n<div>\n<p>Consultez nos <a href=\"#\">cartographies de cavit\u00e9s r\u00e9gionales<\/a><\/p>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"\/gravimep\/wp-content\/uploads\/2025\/07\/ecroulement-de-chaussee.jpg\" alt=\"Trou dans la chauss\u00e9e en raison d'un \u00e9croulement en region nord\"><\/p>\n<h3>GRAVIMEP, votre partenaire en contexte karstique<\/p>\n<\/h3>\n<div>\n<p class=\"uk-text-bold\">Nous avons accompagn\u00e9 de nombreux projets en <strong>zones karstiques<\/strong>, notamment dans le Nord, le Pas-de-Calais, l\u2019Oise ou encore la Normandie.<\/p>\n<ul class=\"uk-list uk-list-secondary\">\n<li>M\u00e9thodologie \u00e9prouv\u00e9e<\/li>\n<li>Interpr\u00e9tation experte<\/li>\n<li>Prise en compte du contexte local<\/li>\n<li>Rapport exploitable pour les bureaux d\u2019\u00e9tudes et assureurs<\/li>\n<\/ul>\n<\/div>\n<p><p>\n        <a href=\"#\">Voir nos \u00e9tudes de cas<\/a>\n    <\/p>\n<\/p>\n<p><p>\n        <a href=\"\/gravimep\/contact\">Demandez un diagnostic de votre terrain karstique<\/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 des cavit\\u00e9s karstiques : <br class=\\\"uk-visible@m\\\"\\\/>pr\\u00e9venir les effondrements naturels\\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\":\"Qu\\u2019est-ce qu\\u2019une cavit\\u00e9 karstique ?\\n\",\"title_element\":\"h2\",\"title_style\":\"h3\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>Les cavit\\u00e9s karstiques sont des <strong>vides naturels<\\\/strong> form\\u00e9s dans les roches <strong>calcaires<\\\/strong>, <strong>gypseuses<\\\/strong> ou <strong>dolomitiques<\\\/strong>, par un ph\\u00e9nom\\u00e8ne de <strong>dissolution chimique<\\\/strong>. Avec le temps, l'eau dissout la roche et forme des structures souterraines vari\\u00e9es, notamment :<\\\/p>\\n\n\n<ul class=\\\"uk-list uk-list-circle uk-list-secondary\\\">\\n\n\n<li><strong>Karsts profonds<\\\/strong><\\\/li>\\n\n\n<li><strong>Dolines<\\\/strong> (effondrements en surface)<\\\/li>\\n\n\n<li><strong>Gouffres<\\\/strong> et <strong>puits naturels<\\\/strong><\\\/li>\\n\n\n<li><strong>R\\u00e9seaux de galeries souterraines<\\\/strong><\\\/li>\\n<\\\/ul>\\n\n\n<p>Ces formations sont fr\\u00e9quentes dans de nombreuses r\\u00e9gions fran\\u00e7aises, dont les <strong>Hauts-de-France<\\\/strong>, o\\u00f9 GRAVIMEP est implant\\u00e9.<\\\/p>\",\"margin\":\"default\",\"text_align\":\"justify\"}},{\"type\":\"panel\",\"props\":{\"content\":\"\n\n<p>Voici notre <a href=\\\"zone-d-intervention\\\">zone d\\u2019intervention r\\u00e9gionale<\\\/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\\\/cavite-karstique-dans-les-hauts-de-france.jpg\",\"image_alt\":\"Cavit\\u00e9 Karstique 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\":\"Quels sont les risques associ\\u00e9s aux terrains karstiques ?\\n\",\"title_element\":\"h2\",\"title_style\":\"h3\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p class=\\\"uk-text-secondary uk-text-bold\\\">Les cavit\\u00e9s karstiques peuvent provoquer :<\\\/p>\\n\n\n<ul class=\\\"uk-list uk-list-circle uk-list-secondary\\\">\\n\n\n<li><strong>Affaissements localis\\u00e9s<\\\/strong><\\\/li>\\n\n\n<li><strong>Effondrements brutaux de grande ampleur<\\\/strong><\\\/li>\\n\n\n<li><strong>Instabilit\\u00e9s sous des b\\u00e2timents ou ouvrages<\\\/strong><\\\/li>\\n\n\n<li><strong>Surco\\u00fbts de travaux li\\u00e9s \\u00e0 des reprises de fondation<\\\/strong><\\\/li>\\n<\\\/ul>\\n\n\n<p class=\\\"uk-text-bold\\\">| Ces risques sont souvent invisibles en surface, d\\u2019o\\u00f9 la n\\u00e9cessit\\u00e9 d\\u2019un <strong>diagnostic approfondi avant tout projet<\\\/strong>.<\\\/p>\",\"margin\":\"default\",\"text_align\":\"justify\"}}]},{\"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\\\/07\\\/effondrement-de-chaussee-important-et-brutal.jpg\",\"image_alt\":\"Effondrement de sol important dans le Nord\",\"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 GRAVIMEP d\\u00e9tecte les cavit\\u00e9s karstiques ?\\n\",\"title_element\":\"h2\",\"title_style\":\"h3\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p>Nous utilisons la <strong>microgravim\\u00e9trie<\\\/strong>, une m\\u00e9thode non <strong>intrusive et tr\\u00e8s sensible<\\\/strong> aux variations de densit\\u00e9 li\\u00e9es aux vides souterrains.<\\\/p>\\n\n\n<p class=\\\"uk-text-bold uk-text-secondary\\\">Cette technique est id\\u00e9ale pour :<\\\/p>\\n\n\n<ul class=\\\"uk-list uk-list-circle uk-list-secondary\\\">\\n\n\n<li>Rep\\u00e9rer des <strong>zones de dissolution calcaire<\\\/strong><\\\/li>\\n\n\n<li>Identifier des <strong>dolines actives ou fossiles<\\\/strong><\\\/li>\\n\n\n<li>Cibler les points \\u00e0 forer pour v\\u00e9rification<\\\/li>\\n\n\n<li>Pr\\u00e9venir des <strong>risques d\\u2019effondrement diff\\u00e9r\\u00e9<\\\/strong><\\\/li>\\n<\\\/ul>\",\"margin\":\"default\",\"text_align\":\"justify\"}},{\"type\":\"panel\",\"props\":{\"content\":\"\n\n<p>En savoir plus sur notre <a href=\\\"microgravimetrie\\\">m\\u00e9thode de 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\",\"position_sticky_breakpoint\":\"m\",\"vertical_align\":\"middle\",\"width_medium\":\"1-2\"},\"children\":[{\"type\":\"image\",\"props\":{\"image\":\"wp-content\\\/uploads\\\/2025\\\/06\\\/equipe-terrain-avec-un-gravimetre.jpg\",\"image_alt\":\"Deux techniciens des sols en cours d'analyse \\u00e0 l'aide d'un gravim\\u00e8tre\",\"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\":\"Les \\u00e9tapes d\\u2019un diagnostic karstique par microgravim\\u00e9trie\",\"title_element\":\"h3\",\"title_style\":\"h3\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p class=\\\"uk-text-bold uk-text-secondary\\\">1. \\u00c9tude pr\\u00e9alable du contexte g\\u00e9ologique<\\\/p>\\n\\n\n\n<p>Analyse des cartes g\\u00e9ologiques, historiques, photos a\\u00e9riennes, etc.<\\\/p>\\n\\n\n\n<p class=\\\"uk-text-bold uk-text-secondary\\\">2. Campagne de mesures gravim\\u00e9triques<\\\/p>\\n\\n\n\n<p>Acquisition sur maillage adapt\\u00e9 (1 \\u00e0 5 m\\u00e8tres selon la pr\\u00e9cision souhait\\u00e9e)<\\\/p>\\n\\n\n\n<p class=\\\"uk-text-bold uk-text-secondary\\\">3. Traitement et mod\\u00e9lisation<\\\/p>\\n\\n\n\n<p>Correction des donn\\u00e9es (mar\\u00e9e, drift, topographie) et cartographie des anomalies<\\\/p>\\n\\n\n\n<p class=\\\"uk-text-bold uk-text-secondary\\\">4. Rapport et recommandations<\\\/p>\\n\\n\n\n<p>Proposition de v\\u00e9rifications (forages, sondages), zonage des zones \\u00e0 risque<\\\/p>\",\"margin\":\"default\",\"text_align\":\"justify\"}}]},{\"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\\\/05\\\/geophysicien-devant-un-ecran.jpg\",\"image_alt\":\"G\\u00e9ophysicien devant les donn\\u00e9es \\u00e0 trait\\u00e9es\",\"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\":\"Dans quels cas suspecter un terrain karstique ?\",\"title_element\":\"h2\",\"title_style\":\"h3\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p class=\\\"uk-text-bold uk-text-secondary\\\">Vous \\u00eates concern\\u00e9 si votre site pr\\u00e9sente :<\\\/p>\\n\n\n<ul class=\\\"uk-list uk-list-circle uk-list-secondary\\\">\\n\n\n<li>Une localisation en <strong>zone calcaire ou gypseuse<\\\/strong><\\\/li>\\n\n\n<li>Des <strong>trous d\\u2019origine inconnue<\\\/strong> en surface<\\\/li>\\n\n\n<li>Un <strong>ancien effondrement<\\\/strong> non expliqu\\u00e9<\\\/li>\\n\n\n<li>Des fissures ou d\\u00e9formations du b\\u00e2ti<\\\/li>\\n<\\\/ul>\",\"margin\":\"default\",\"text_align\":\"justify\"}},{\"type\":\"panel\",\"props\":{\"content\":\"\n\n<p>Consultez nos <a href=\\\"#\\\">cartographies de cavit\\u00e9s r\\u00e9gionales<\\\/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\\\/ecroulement-de-chaussee.jpg\",\"image_alt\":\"Trou dans la chauss\\u00e9e en raison d'un \\u00e9croulement en region nord\",\"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\":\"GRAVIMEP, votre partenaire en contexte karstique\\n\\n\",\"text_align\":\"center\",\"title_decoration\":\"line\",\"title_element\":\"h3\",\"title_style\":\"h3\"}},{\"type\":\"text\",\"props\":{\"column_breakpoint\":\"m\",\"content\":\"\n\n<p class=\\\"uk-text-bold\\\">Nous avons accompagn\\u00e9 de nombreux projets en <strong>zones karstiques<\\\/strong>, notamment dans le Nord, le Pas-de-Calais, l\\u2019Oise ou encore la Normandie.<\\\/p>\\n\n\n<ul class=\\\"uk-list uk-list-secondary\\\">\\n\n\n<li>M\\u00e9thodologie \\u00e9prouv\\u00e9e<\\\/li>\\n\n\n<li>Interpr\\u00e9tation experte<\\\/li>\\n\n\n<li>Prise en compte du contexte local<\\\/li>\\n\n\n<li>Rapport exploitable pour les bureaux d\\u2019\\u00e9tudes et 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\":\"Voir nos \\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\":\"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 votre terrain karstique\",\"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 des cavit\u00e9s karstiques : pr\u00e9venir les effondrements naturels Qu\u2019est-ce qu\u2019une cavit\u00e9 karstique ? Les cavit\u00e9s karstiques sont des vides naturels form\u00e9s dans les roches calcaires, gypseuses ou dolomitiques, par un ph\u00e9nom\u00e8ne de dissolution chimique. Avec le temps, l&rsquo;eau dissout la roche et forme des structures souterraines vari\u00e9es, notamment : Karsts profonds Dolines (effondrements en [&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-213","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/pages\/213","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=213"}],"version-history":[{"count":17,"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/pages\/213\/revisions"}],"predecessor-version":[{"id":524,"href":"https:\/\/versionbeta.ovh\/gravimep\/wp-json\/wp\/v2\/pages\/213\/revisions\/524"}],"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=213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}