{"id":9934,"date":"2026-03-25T12:34:32","date_gmt":"2026-03-25T12:34:32","guid":{"rendered":"https:\/\/renotec.be\/kerncompetentie\/open-beschoeide-sleuf\/"},"modified":"2026-04-14T15:21:54","modified_gmt":"2026-04-14T15:21:54","slug":"tranchee-ouverte-coffree","status":"publish","type":"page","link":"https:\/\/renotec.nl\/fr\/savoir-faire\/tranchee-ouverte-coffree\/","title":{"rendered":"Tranch\u00e9e ouverte coffr\u00e9e"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"9934\" class=\"elementor elementor-9934 elementor-6872\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9ac8979 e-flex e-con-boxed e-con e-parent\" data-id=\"9ac8979\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-165a7bb e-con-full e-flex e-con e-child\" data-id=\"165a7bb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-28efbb4 elementor-widget elementor-widget-heading\" data-id=\"28efbb4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Tranch\u00e9e ouverte coffr\u00e9e\n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e65187a elementor-widget elementor-widget-text-editor\" data-id=\"e65187a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Renotec offre non seulement des techniques de r\u00e9novation sans tranch\u00e9e, mais \u00e9galement des r\u00e9novations d\u2019\u00e9gouts en tranch\u00e9e ouverte coffr\u00e9e.<\/strong><\/p><p align=\"LEFT\">Les r\u00e9novations d\u2019\u00e9gouts \u00e0 tranch\u00e9e ouverte peuvent \u00eatre utilis\u00e9es pour les r\u00e9novations de collecteurs ainsi que pour les r\u00e9novations de raccordements priv\u00e9s au r\u00e9seau public, \u00e9ventuellement en combinaison avec des travaux de minage. Cette m\u00e9thode est principalement utilis\u00e9e pour des raccordements en profondeur, quand il n\u2019est pas possible d\u2019utiliser des techniques de r\u00e9novation sp\u00e9ciales.<\/p><p align=\"LEFT\">Des raccordements d\u2019\u00e9gouts difficiles et profonds ne nous font pas peur. Nous sommes un acteur important dans la r\u00e9novation des raccordements dans la R\u00e9gion de Bruxelles-Capitale ainsi qu\u2019ailleurs en Belgique, et nous savons mieux que quiconque comment g\u00e9rer un r\u00e9seau complexe de c\u00e2bles et de conduites.<\/p><p>Des tranch\u00e9es profondes n\u00e9cessitent un coffrage correct et s\u00fbr, et nos comp\u00e9tences sp\u00e9cialis\u00e9es dans ce domaine constituent un atout important..<\/p><p align=\"LEFT\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-medium wp-image-10339\" src=\"https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-013-300x200.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-013-300x200.jpg 300w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-013-1024x683.jpg 1024w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-013-768x512.jpg 768w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-013-1536x1024.jpg 1536w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-013-800x533.jpg 800w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-013.jpg 1920w\" alt=\"\" width=\"300\" height=\"200\" \/>\u00a0 \u00a0 \u00a0\u00a0<img decoding=\"async\" class=\"alignnone size-medium wp-image-10340\" src=\"https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-010-300x200.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-010-300x200.jpg 300w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-010-1024x683.jpg 1024w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-010-768x512.jpg 768w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-010-1536x1024.jpg 1536w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-010-800x533.jpg 800w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-010.jpg 1920w\" alt=\"\" width=\"300\" height=\"200\" \/><\/p><p align=\"LEFT\"><img decoding=\"async\" class=\"alignnone size-medium wp-image-10341\" src=\"https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-011-200x300.jpg\" sizes=\"(max-width: 200px) 100vw, 200px\" srcset=\"https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-011-200x300.jpg 200w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-011-683x1024.jpg 683w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-011-768x1152.jpg 768w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-011-1024x1536.jpg 1024w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-011.jpg 1280w\" alt=\"\" width=\"200\" height=\"300\" \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-10342\" src=\"https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-004-300x200.jpg\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-004-300x200.jpg 300w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-004-1024x683.jpg 1024w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-004-768x512.jpg 768w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-004-1536x1024.jpg 1536w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-004-800x533.jpg 800w, https:\/\/renotec.be\/content\/uploads\/2019\/06\/JPG-Renotec-Floreal-Petuniastraat-Watermaal-Bosvoorde-jdw-004.jpg 1920w\" alt=\"\" width=\"300\" height=\"200\" \/><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6e22484 e-con-full e-flex e-con e-child\" data-id=\"6e22484\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-2b2065e e-con-full e-flex e-con e-child\" data-id=\"2b2065e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-851ac9b elementor-widget elementor-widget-heading\" data-id=\"851ac9b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Besoin plus d'informations?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e7c804 elementor-button-align-stretch elementor-widget elementor-widget-global elementor-global-9992 elementor-widget-form\" data-id=\"8e7c804\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;33&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" id=\"contact\" name=\"Contact\" aria-label=\"Contact\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"9934\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"8e7c804\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"Renotec\" \/>\n\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-voornaam elementor-col-50 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-voornaam\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tpr\u00e9nom\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[voornaam]\" id=\"form-field-voornaam\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Pr\u00e9nom*\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-achternaam elementor-col-50 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-achternaam\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tnom de famille\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[achternaam]\" id=\"form-field-achternaam\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Nom de famille*\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-bedrijf elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-bedrijf\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tentreprise\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[bedrijf]\" id=\"form-field-bedrijf\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Entreprise\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-50 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"E-mail*\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-tel elementor-field-group elementor-column elementor-field-group-telefoon elementor-col-50\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-telefoon\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tT\u00e9l\u00e9phone\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input size=\"1\" type=\"tel\" name=\"form_fields[telefoon]\" id=\"form-field-telefoon\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"T\u00e9l\u00e9phone\" pattern=\"[0-9()#&amp;+*-=.]+\" title=\"Seuls les caract\u00e8res de num\u00e9ros de t\u00e9l\u00e9phone (#, -, *, etc.) sont accept\u00e9s.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-bericht elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-bericht\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[bericht]\" id=\"form-field-bericht\" rows=\"3\" placeholder=\"Message*\" required=\"required\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-acceptance elementor-field-group elementor-column elementor-field-group-privacy elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-privacy\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tConfidentialit\u00e9\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-subgroup\">\n\t\t\t<span class=\"elementor-field-option\">\n\t\t\t\t<input type=\"checkbox\" name=\"form_fields[privacy]\" id=\"form-field-privacy\" class=\"elementor-field elementor-size-sm  elementor-acceptance-field\" required=\"required\">\n\t\t\t\t<label for=\"form-field-privacy\">Nous traitons vos donn\u00e9es \u00e0 caract\u00e8re personnel \u00e0 des fins de gestion interne, notamment pour assurer un traitement rapide de votre r\u00e9action et de votre demande de renseignements. <a href=\"https:\/\/renotec.be\/wp-content\/uploads\/2025\/12\/Data-protection-notice-Renotec.pdf\">Vous pouvez consulter notre politique de confidentialit\u00e9 ici.<\/a><\/label>\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-recaptcha_v3 elementor-field-group elementor-column elementor-field-group-field_5a8e873 elementor-col-100 recaptcha_v3-bottomright\">\n\t\t\t\t\t<div class=\"elementor-field\" id=\"form-field-field_5a8e873\"><div class=\"elementor-g-recaptcha\" data-sitekey=\"6LfYyT0tAAAAAPjULC2gnSEGq2j5DVuvtO56jAbj\" data-type=\"v3\" data-action=\"Form\" data-badge=\"bottomright\" data-size=\"invisible\"><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-33 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Envoyer<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7b82b18 e-con-full e-flex e-con e-parent\" data-id=\"7b82b18\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-77bbdd9 elementor-widget elementor-widget-template\" data-id=\"77bbdd9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"template.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-template\">\n\t\t\t\t\t<div data-elementor-type=\"container\" data-elementor-id=\"9995\" class=\"elementor elementor-9995 elementor-8117 elementor-8117\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4b20b03a e-con-full e-flex e-con e-parent\" data-id=\"4b20b03a\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;none&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-43e7cf27 e-flex e-con-boxed e-con e-child\" data-id=\"43e7cf27\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-60e0a692 elementor-widget__width-auto elementor-widget elementor-widget-heading\" data-id=\"60e0a692\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><a href=\"https:\/\/jobs.renotec.be\/\">\u00c0 la recherche du job id\u00e9al ? D\u00e9couvrez nos offres d'emploi !<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Tranch\u00e9e ouverte coffr\u00e9e Renotec offre non seulement des techniques de r\u00e9novation sans tranch\u00e9e, mais \u00e9galement des r\u00e9novations d\u2019\u00e9gouts en tranch\u00e9e ouverte coffr\u00e9e. Les r\u00e9novations d\u2019\u00e9gouts \u00e0 tranch\u00e9e ouverte peuvent \u00eatre utilis\u00e9es pour les r\u00e9novations de collecteurs ainsi que pour les r\u00e9novations de raccordements priv\u00e9s au r\u00e9seau public, \u00e9ventuellement en combinaison avec des travaux de minage. [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":9910,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-9934","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Tranch\u00e9e ouverte coffr\u00e9e - Renotec<\/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:\/\/renotec.nl\/fr\/savoir-faire\/tranchee-ouverte-coffree\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tranch\u00e9e ouverte coffr\u00e9e\" \/>\n<meta property=\"og:description\" content=\"Tranch\u00e9e ouverte coffr\u00e9e Renotec offre non seulement des techniques de r\u00e9novation sans tranch\u00e9e, mais \u00e9galement des r\u00e9novations d\u2019\u00e9gouts en tranch\u00e9e ouverte coffr\u00e9e. Les r\u00e9novations d\u2019\u00e9gouts \u00e0 tranch\u00e9e ouverte peuvent \u00eatre utilis\u00e9es pour les r\u00e9novations de collecteurs ainsi que pour les r\u00e9novations de raccordements priv\u00e9s au r\u00e9seau public, \u00e9ventuellement en combinaison avec des travaux de minage. 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