{"id":199,"date":"2020-02-04T15:54:49","date_gmt":"2020-02-04T14:54:49","guid":{"rendered":"http:\/\/eprcf33.fr\/?page_id=199"},"modified":"2025-10-22T11:07:33","modified_gmt":"2025-10-22T09:07:33","slug":"travaux-consolidation-et-mise-en-securite","status":"publish","type":"page","link":"https:\/\/eprcf33.fr\/index.php\/travaux-consolidation-et-mise-en-securite\/","title":{"rendered":"Travaux : consolidation et mise en s\u00e9curit\u00e9"},"content":{"rendered":"[vc_row full_width=\u00a0\u00bbstretch_row\u00a0\u00bb][vc_column][rev_slider_vc alias=\u00a0\u00bbles-travaux-de-consolidation-et-de-mise-en-securite\u00a0\u00bb][\/vc_column][\/vc_row][vc_row][vc_column][vc_row_inner][vc_column_inner][vc_column_text]\n<h2><span style=\"text-decoration: underline;\"><span style=\"font-family: Roboto;\">Les travaux de consolidation pour les carri\u00e8res :<\/span><\/span><\/h2>\n<h4><strong>Les techniques de pr\u00e9vention actives<\/strong> :<\/h4>\n<p><span style=\"font-family: Roboto;\">Permettent soit de consolider la carri\u00e8re souterraine soit de combler les vides en les supprimant totalement. L\u2019objectif premier de cette m\u00e9thode est de diminuer, voire d\u2019annuler la possibilit\u00e9 d\u2019avoir un d\u00e9sordre li\u00e9 \u00e0 des mouvements de terrain.<\/span><\/p>\n<p><span style=\"font-family: Roboto;\"><strong>La premi\u00e8re m\u00e9thode est la consolidation souterraine par piliers ma\u00e7onn\u00e9s, vo\u00fbtes, murs, etc<\/strong>. Elle est utilis\u00e9e pour les sites accessibles que l\u2019on veut conserver ouverts pour r\u00e9aliser des visites d\u2019inspections. Elle exige donc un entretien et une surveillance de l\u2019\u00e9volution des galeries de carri\u00e8res consolid\u00e9es.<\/span><\/p>\n<p><span style=\"font-family: Roboto;\"><strong>La deuxi\u00e8me m\u00e9thode est la consolidation souterraine par injection<\/strong>. Cette m\u00e9thode est utilis\u00e9e lorsque l\u2019\u00e9tat des galeries de carri\u00e8re ne permet pas la mise en \u0153uvre de la m\u00e9thode de confortation. Lors des injections de terrain, il est possible de mettre en place un comblement partiel ou total des vides suivant le cas \u00e0 traiter. Lorsqu\u2019il y a seulement un comblement partiel de la galerie, l\u2019al\u00e9a n\u2019est pas supprim\u00e9. Il peut toujours y avoir un effondrement des terrains, mais gr\u00e2ce au comblement partiel des terrains, le d\u00e9sordre en surface sera moindre car on observera un autocomblement des terrains lors de la remont\u00e9e.<\/span><\/p>\n<p><em><span style=\"font-family: Roboto;\">Les travaux cit\u00e9s ci-dessus doivent \u00eatre r\u00e9alis\u00e9 par une entreprise agr\u00e9e type bureau d\u2019\u00e9tude g\u00e9otechnique.<\/span><\/em><\/p>\n<h4>Les techniques de pr\u00e9vention passives :<\/h4>\n<p><span style=\"font-family: Roboto;\">Ont pour objectif de s\u00e9curiser les enjeux en surface en limitant ou emp\u00eachant l\u2019al\u00e9a de se produire. Ce type de technique correspond \u00e0 l\u2019adaptation des fondations du pavillon,<\/span><\/p>\n<p><span style=\"font-family: Roboto;\">On retrouve plusieurs types de fondations\u00a0:<\/span><\/p>\n<ul>\n<li><span style=\"font-family: Roboto;\"><strong>Les fondations superficielles <\/strong>(radier, longrines), sont en principe r\u00e9serv\u00e9es pour les zones de carri\u00e8re avec pr\u00e9sence de petits vides type fontis, karst ou \u00e0 l\u2019aplomb d\u2019une zone anciennement effondr\u00e9e.<\/span><\/li>\n<li><span style=\"font-family: Roboto;\"><strong>Les fondations profondes<\/strong> (pieux, puits), permettent de reporter les charges du pavillon sur le bon sol, en dessous des galeries de carri\u00e8res. On les associe, le plus souvent \u00e0 un traitement des vides par comblement.<\/span><\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=\u00a0\u00bbstretch_row\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1758982833062{background-color: #ded6cc !important;}\u00a0\u00bb][vc_column][vc_column_text]\n<h2><span style=\"text-decoration: underline;\"><span style=\"font-family: Roboto;\">Les travaux de consolidation pour les falaises :<\/span><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-family: Roboto;\">Une des premi\u00e8res \u00e9tapes pour la stabilit\u00e9 des falaises est l\u2019entretien de celle-ci, il permet de diminuer l\u2019\u00e9rosion de la falaise et peut \u00eatre r\u00e9alis\u00e9 sous diff\u00e9rentes formes\u00a0:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li><span style=\"font-family: Roboto;\"><strong>Purge de falaise :<\/strong> c&rsquo;est-\u00e0-dire enlever les blocs de falaise qui menacent de tomber.<\/span><\/li>\n<li><span style=\"font-family: Roboto;\"><strong>Entretien de la v\u00e9g\u00e9tation <\/strong>qui consiste \u00e0 enlever la v\u00e9g\u00e9tation excessive qui entraine des chutes de blocs ou soit au contraire rajouter de nouvelles esp\u00e8ces v\u00e9g\u00e9tales qui, avec leur racines rampantes, retiennent les blocs de falaise.<\/span><\/li>\n<li><span style=\"font-family: Roboto;\"><strong>Drainage de l&rsquo;eau<\/strong> de ruissellement sous forme de goutti\u00e8res, de murs de sout\u00e8nement, de foss\u00e9s et canalisations.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-family: Roboto;\">Pour emp\u00eacher la chute de blocs, il est possible de mettre en place\u00a0:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li><span style=\"font-family: Roboto;\">Un syst\u00e8me de <strong>grillage de protection\u00a0<\/strong>plaqu\u00e9 contre la paroi de falaise. La maille du grillage sera adapt\u00e9e en fonction de la taille des blocs de falaise.<\/span><\/li>\n<li><span style=\"font-family: Roboto;\">Des <strong>tirants<\/strong> enfonc\u00e9s et ancr\u00e9s profond\u00e9ment dans la roche saine de la paroi de falaise.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-family: Roboto;\">Il existe des <strong>protections passives\u00a0<\/strong>type murs de sout\u00e8nement ou pare feu, qui n\u2019emp\u00eachent pas la chute de blocs mais qui prot\u00e8gent les enjeux \u00e0 proximit\u00e9 imm\u00e9diate de la falaise.<\/span><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"<p>[vc_row full_width=\u00a0\u00bbstretch_row\u00a0\u00bb][vc_column][rev_slider_vc alias=\u00a0\u00bbles-travaux-de-consolidation-et-de-mise-en-securite\u00a0\u00bb][\/vc_column][\/vc_row][vc_row][vc_column][vc_row_inner][vc_column_inner][vc_column_text] Les travaux de consolidation pour les carri\u00e8res : Les techniques de pr\u00e9vention actives : Permettent soit de consolider la carri\u00e8re souterraine soit de combler les vides en les supprimant totalement. L\u2019objectif premier de cette m\u00e9thode est de&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"templates\/no-sidebar.php","meta":{"footnotes":""},"class_list":["post-199","page","type-page","status-publish","hentry","entry","no-media"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Travaux : consolidation et mise en s\u00e9curit\u00e9 - eprcf 33 carri\u00e8res souterraines et falaises de Gironde<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eprcf33.fr\/index.php\/travaux-consolidation-et-mise-en-securite\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Travaux : consolidation et mise en s\u00e9curit\u00e9 - eprcf 33 carri\u00e8res souterraines et falaises de Gironde\" \/>\n<meta property=\"og:description\" content=\"[vc_row full_width=\u00a0\u00bbstretch_row\u00a0\u00bb][vc_column][rev_slider_vc alias=\u00a0\u00bbles-travaux-de-consolidation-et-de-mise-en-securite\u00a0\u00bb][\/vc_column][\/vc_row][vc_row][vc_column][vc_row_inner][vc_column_inner][vc_column_text] Les travaux de consolidation pour les carri\u00e8res : Les techniques de pr\u00e9vention actives : Permettent soit de consolider la carri\u00e8re souterraine soit de combler les vides en les supprimant totalement. 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