{"id":5337,"date":"2026-06-29T13:33:34","date_gmt":"2026-06-29T12:33:34","guid":{"rendered":"https:\/\/constru-care.com\/?p=5337"},"modified":"2026-07-30T09:59:07","modified_gmt":"2026-07-30T08:59:07","slug":"projet-sondage-cables-de-precontrainte-viaduc","status":"publish","type":"post","link":"https:\/\/constru-care.com\/en\/projet-sondage-cables-de-precontrainte-viaduc\/","title":{"rendered":"Projet \u2013 Sondage c\u00e2bles de pr\u00e9contrainte viaduc"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5337\" class=\"elementor elementor-5337\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d319bf5 elementor-reverse-tablet elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d319bf5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-2cad8dd\" data-id=\"2cad8dd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f13b76d elementor-widget elementor-widget-image\" data-id=\"f13b76d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1152\" height=\"1536\" src=\"https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260409_111816-1152x1536.jpg\" class=\"attachment-1536x1536 size-1536x1536 wp-image-6276\" alt=\"\" srcset=\"https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260409_111816-1152x1536.jpg 1152w, https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260409_111816-225x300.jpg 225w, https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260409_111816-768x1024.jpg 768w, https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260409_111816-1536x2048.jpg 1536w, https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260409_111816-scaled.jpg 1920w\" sizes=\"(max-width: 1152px) 100vw, 1152px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e3ef6d7 elementor-widget elementor-widget-image\" data-id=\"e3ef6d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1157\" height=\"1536\" src=\"https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260410_102243-1157x1536.jpg\" class=\"attachment-1536x1536 size-1536x1536 wp-image-6274\" alt=\"\" srcset=\"https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260410_102243-1157x1536.jpg 1157w, https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260410_102243-226x300.jpg 226w, https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260410_102243-771x1024.jpg 771w, https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260410_102243-768x1020.jpg 768w, https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260410_102243-1542x2048.jpg 1542w, https:\/\/constru-care.com\/wp-content\/uploads\/2026\/06\/IMG_20260410_102243-scaled.jpg 1928w\" sizes=\"(max-width: 1157px) 100vw, 1157px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-47fd9e0\" data-id=\"47fd9e0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-39e2e2b elementor-widget elementor-widget-text-editor\" data-id=\"39e2e2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Est-il possible de conna\u00eetre l\u2019\u00e9tat de corrosion des c\u00e2bles de pr\u00e9contrainte ou de d\u00e9tecter la pr\u00e9sence de vides ou d\u2019eau dans les gaines de pr\u00e9contrainte \u00e0 l\u2019aide de m\u00e9thodes d\u2019investigation non destructives ?<\/p><p>L\u2019\u00e9valuation de l\u2019\u00e9tat des c\u00e2bles de pr\u00e9contrainte constitue un enjeu majeur pour garantir la s\u00e9curit\u00e9 et la durabilit\u00e9 des ouvrages en b\u00e9ton pr\u00e9contraint. Aujourd\u2019hui, les m\u00e9thodes d\u2019investigation non destructives (NDT) permettent d\u2019obtenir des informations pr\u00e9cieuses sur le niveau de corrosion des c\u00e2bles ainsi que sur la pr\u00e9sence \u00e9ventuelle de vides ou d\u2019eau dans les gaines, tout en limitant le recours \u00e0 des interventions invasives.<\/p><p>Parmi les techniques les plus couramment utilis\u00e9es figurent le Ground Penetrating Radar (GPR), les ultrasons, la tomographie ultrasonore et les m\u00e9thodes \u00e9lectromagn\u00e9tiques. Le GPR permet notamment de d\u00e9tecter des anomalies au niveau des gaines et d\u2019identifier d\u2019\u00e9ventuelles zones d\u00e9pourvues de coulis d\u2019injection, tandis que les ultrasons mettent en \u00e9vidence des discontinuit\u00e9s internes et des variations de densit\u00e9 du mat\u00e9riau.<\/p><p>Toutefois, ces techniques pr\u00e9sentent encore certaines limites. Leur efficacit\u00e9 d\u00e9pend notamment de la taille des anomalies recherch\u00e9es, qui doivent atteindre une dimension minimale pour \u00eatre d\u00e9tect\u00e9es de mani\u00e8re fiable. De plus, l\u2019interpr\u00e9tation des r\u00e9sultats n\u00e9cessite une expertise approfondie ainsi qu\u2019une bonne connaissance des performances de chaque m\u00e9thode.<\/p><p>C\u2019est pourquoi il est recommand\u00e9, lorsque cela est possible, de combiner plusieurs techniques d\u2019investigation. Cette approche permet d\u2019obtenir un diagnostic plus fiable et plus complet, facilitant ainsi la prise de d\u00e9cision concernant les interventions de maintenance ou de r\u00e9paration.<\/p><p>Cette d\u00e9marche a notamment \u00e9t\u00e9 mise en \u0153uvre lors d\u2019une mission r\u00e9alis\u00e9e pour le compte de la soci\u00e9t\u00e9 Gal\u00e8re sur le viaduc Villette \u00e0 Charleroi. Les investigations sur les c\u00e2bles de pr\u00e9contrainte ont associ\u00e9 des m\u00e9thodes non destructives \u00e0 des inspections localis\u00e9es destructives. Cette compl\u00e9mentarit\u00e9 a permis de caract\u00e9riser avec pr\u00e9cision la continuit\u00e9 et la compacit\u00e9 du coulis de ciment entourant les c\u00e2bles, de d\u00e9tecter d\u2019\u00e9ventuels vides et d\u2019identifier les zones n\u00e9cessitant une intervention.<\/p><p>En conclusion, les m\u00e9thodes d\u2019investigation non destructives constituent aujourd\u2019hui des outils essentiels pour la maintenance pr\u00e9ventive et la gestion des infrastructures. Si elles ne permettent pas encore de se substituer totalement aux investigations destructives, elles contribuent \u00e0 en r\u00e9duire consid\u00e9rablement le nombre en les ciblant uniquement sur les zones r\u00e9ellement critiques.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Est-il possible de conna\u00eetre l\u2019\u00e9tat de corrosion des c\u00e2bles de pr\u00e9contrainte ou de d\u00e9tecter la pr\u00e9sence de vides ou d\u2019eau dans les gaines de pr\u00e9contrainte \u00e0 l\u2019aide de m\u00e9thodes d\u2019investigation non destructives ?<\/p>","protected":false},"author":1,"featured_media":6269,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,49],"tags":[36],"class_list":["post-5337","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-projet","tag-sondage","post-with-thumbnail","post-with-thumbnail-icon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Projet \u2013 Sondage c\u00e2bles de pr\u00e9contrainte viaduc | Constru-Care<\/title>\n<meta name=\"description\" content=\"R\u00e9alisation d&#039;une campagne de sondage destructif et non destructif pour connaitre l&#039;\u00e9tat de gaines et c\u00e2bles de pr\u00e9contrainte d&#039;un viaduc.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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