{"id":4714,"date":"2025-11-04T09:49:31","date_gmt":"2025-11-04T09:49:31","guid":{"rendered":"https:\/\/eurohinca.com\/?p=4714"},"modified":"2026-05-13T10:57:17","modified_gmt":"2026-05-13T10:57:17","slug":"comment-lalignement-est-controle-en-temps-reel","status":"publish","type":"post","link":"https:\/\/eurohinca.com\/fr\/como-se-controla-la-alineacion-en-tiempo-real\/","title":{"rendered":"Comment l'alignement est-il contr\u00f4l\u00e9 en temps r\u00e9el : laser, gyroscope, stations totales et tel que construit ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"4714\" class=\"elementor elementor-4714\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d6327ef e-flex e-con-boxed e-con e-parent\" data-id=\"d6327ef\" 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-0d3dfe2 elementor-widget elementor-widget-text-editor\" data-id=\"0d3dfe2\" 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 data-start=\"105\" data-end=\"449\">Au <strong data-start=\"124\" data-end=\"205\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/fr\/eperonnage-de-tuyaux-2\/\" target=\"_new\" rel=\"noopener\" data-start=\"126\" data-end=\"203\">le fon\u00e7age de tuyaux (microtunnelage)<\/a><\/strong> l'alignement est r\u00e9gi par un <strong data-start=\"239\" data-end=\"260\">syst\u00e8me de guidage<\/strong> (laser ou gyroscopique) \u00e0 l'int\u00e9rieur du bouclier, <strong data-start=\"302\" data-end=\"324\">topographie ext\u00e9rieure<\/strong> avec des stations totales automatiques et un cycle continu de <strong data-start=\"383\" data-end=\"419\">correction-v\u00e9rification-enregistrement<\/strong> avec pour point d'orgue la <em data-start=\"438\" data-end=\"448\">tel que construit<\/em>.<\/p><h2 data-start=\"456\" data-end=\"512\">1) Principe de fonctionnement (contr\u00f4le des axes et des pentes)<\/h2><ol data-start=\"513\" data-end=\"1082\"><li data-start=\"513\" data-end=\"682\"><p data-start=\"516\" data-end=\"682\"><strong data-start=\"516\" data-end=\"527\">Lecture<\/strong>: la cible\/la cible du bouclier b\u00e9n\u00e9ficie de l'option <strong data-start=\"569\" data-end=\"582\">faisceau laser<\/strong> ou l'orientation <strong data-start=\"600\" data-end=\"612\">gyro\/INS<\/strong> et calcule les \u00e9carts horizontaux\/verticaux par rapport \u00e0 l'axe th\u00e9orique.<\/p><\/li><li data-start=\"683\" data-end=\"820\"><p data-start=\"686\" data-end=\"820\"><strong data-start=\"686\" data-end=\"700\">Correction<\/strong>: le <strong data-start=\"706\" data-end=\"734\">cylindres d'orientation<\/strong> appliquer des micro-ajustements, le cas \u00e9ch\u00e9ant, <strong data-start=\"769\" data-end=\"794\">anneaux de correction<\/strong> dans la canalisation.<\/p><\/li><li data-start=\"821\" data-end=\"948\"><p data-start=\"824\" data-end=\"948\"><strong data-start=\"824\" data-end=\"848\">V\u00e9rification externe<\/strong>: <strong data-start=\"850\" data-end=\"868\">station totale<\/strong> (ou plusieurs) examine les prismes du bouclier\/de la queue et contraste avec la grille de contr\u00f4le.<\/p><\/li><li data-start=\"949\" data-end=\"1082\"><p data-start=\"952\" data-end=\"1082\"><strong data-start=\"952\" data-end=\"964\">Registre<\/strong>: elles sont enregistr\u00e9es <strong data-start=\"976\" data-end=\"1017\">pouss\u00e9es, couples, pressions, d\u00e9formations<\/strong> et sont consolid\u00e9es dans le <strong data-start=\"1040\" data-end=\"1065\">mod\u00e8le de surveillance<\/strong> et le <em data-start=\"1071\" data-end=\"1081\">tel que construit<\/em>.<\/p><\/li><\/ol><h2 data-start=\"1089\" data-end=\"1139\">2) Laser ou gyroscope (quand utiliser l'un ou l'autre)<\/h2><ul data-start=\"1140\" data-end=\"1896\"><li data-start=\"1140\" data-end=\"1488\"><p data-start=\"1142\" data-end=\"1488\"><strong data-start=\"1142\" data-end=\"1178\">Laser (classique sur les sections droites)<\/strong><br data-start=\"1178\" data-end=\"1181\" \/>Avantages : grande pr\u00e9cision, lecture continue, faible co\u00fbt.<br data-start=\"1243\" data-end=\"1246\" \/>Limites : <strong data-start=\"1262\" data-end=\"1280\">ligne de vue<\/strong> (poussi\u00e8re, brouillard de boue), la sensibilit\u00e9 aux <strong data-start=\"1322\" data-end=\"1337\">les vibrations<\/strong> y <strong data-start=\"1340\" data-end=\"1359\">courbes serr\u00e9es<\/strong>.<br data-start=\"1360\" data-end=\"1363\" \/>Bonnes pratiques : bases topographiques stables, <strong data-start=\"1412\" data-end=\"1436\">compensation thermique<\/strong>, collimation quotidienne et filtres de qualit\u00e9 de lecture.<\/p><\/li><li data-start=\"1490\" data-end=\"1896\"><p data-start=\"1492\" data-end=\"1896\"><strong data-start=\"1492\" data-end=\"1576\">Gyroscope\/INS (adapt\u00e9 aux courbes, aux grandes longueurs ou \u00e0 la visibilit\u00e9 limit\u00e9e)<\/strong><br data-start=\"1576\" data-end=\"1579\" \/>Avantages : ne d\u00e9pend pas de la ligne de vis\u00e9e, r\u00e9siste aux particules et aux variations de pression.<br data-start=\"1668\" data-end=\"1671\" \/>Limites : <strong data-start=\"1687\" data-end=\"1697\">d\u00e9rive<\/strong> \u00e0 long terme ; elle n\u00e9cessite <strong data-start=\"1722\" data-end=\"1741\">recalibrages<\/strong> et une connexion p\u00e9riodique au r\u00e9seau externe.<br data-start=\"1778\" data-end=\"1781\" \/>Bonnes pratiques : <strong data-start=\"1801\" data-end=\"1829\">les arr\u00eats de recalibrage<\/strong> par des jalons avanc\u00e9s, des algorithmes de fusion (gyroscope + station totale).<\/p><\/li><\/ul><blockquote data-start=\"1898\" data-end=\"2027\"><p data-start=\"1900\" data-end=\"2027\">R\u00e8gle de d\u00e9cision rapide : <strong data-start=\"1926\" data-end=\"1952\">droit et propre \u2192 laser<\/strong>; <strong data-start=\"1954\" data-end=\"2026\">courbes, longues ou avec une visibilit\u00e9 difficile \u2192 gyroscope (ou hybride laser+gyroscope)<\/strong>.<\/p><\/blockquote><h2 data-start=\"2034\" data-end=\"2090\">(3) Stations totales automatiques (contr\u00f4le externe)<\/h2><ul data-start=\"2091\" data-end=\"2516\"><li data-start=\"2091\" data-end=\"2186\"><p data-start=\"2093\" data-end=\"2186\"><strong data-start=\"2093\" data-end=\"2111\">R\u00e9seau de contr\u00f4le<\/strong>polygones ferm\u00e9s et bases <strong data-start=\"2142\" data-end=\"2183\">prot\u00e9g\u00e9 contre les vibrations et le trafic<\/strong>.<\/p><\/li><li data-start=\"2187\" data-end=\"2322\"><p data-start=\"2189\" data-end=\"2322\"><strong data-start=\"2189\" data-end=\"2204\">Observation<\/strong>mode robotique avec <strong data-start=\"2224\" data-end=\"2235\">prismes<\/strong> dans le bouclier\/la queue ; redondance de <strong data-start=\"2270\" data-end=\"2288\">deux saisons<\/strong> lorsque la g\u00e9om\u00e9trie le permet.<\/p><\/li><li data-start=\"2323\" data-end=\"2426\"><p data-start=\"2325\" data-end=\"2426\"><strong data-start=\"2325\" data-end=\"2339\">Fr\u00e9quence<\/strong>: lectures <strong data-start=\"2350\" data-end=\"2363\">continu<\/strong> ou par cadences (par exemple toutes les 30-60 s ou par m\u00e8tre excav\u00e9).<\/p><\/li><li data-start=\"2427\" data-end=\"2516\"><p data-start=\"2429\" data-end=\"2516\"><strong data-start=\"2429\" data-end=\"2440\">Alarmes<\/strong>: seuils \u0394shaft\/\u0394slope et <strong data-start=\"2472\" data-end=\"2486\">arr\u00eater les r\u00e8gles<\/strong> pour inspection et correction.<\/p><\/li><\/ul><h2 data-start=\"2523\" data-end=\"2570\">4) Param\u00e8tres de surveillance et tol\u00e9rances<\/h2><ul data-start=\"2571\" data-end=\"2972\"><li data-start=\"2571\" data-end=\"2680\"><p data-start=\"2573\" data-end=\"2680\"><strong data-start=\"2573\" data-end=\"2607\">D\u00e9viation horizontale\/verticale<\/strong> (mm), <strong data-start=\"2614\" data-end=\"2644\">angle d'inclinaison\/de pivotement<\/strong> (mrad), <strong data-start=\"2653\" data-end=\"2666\">en attente<\/strong> (mm\/m ou \u2030).<\/p><\/li><li data-start=\"2681\" data-end=\"2839\"><p data-start=\"2683\" data-end=\"2839\"><strong data-start=\"2683\" data-end=\"2698\">Tol\u00e9rances<\/strong>d\u00e9fini dans le projet ; comme ordre de grandeur dans le microtunnelage <strong data-start=\"2763\" data-end=\"2772\">mm-cm<\/strong> par section, avec des limites plus strictes dans les \u00e9gouts gravitaires.<\/p><\/li><li data-start=\"2840\" data-end=\"2972\"><p data-start=\"2842\" data-end=\"2972\"><strong data-start=\"2842\" data-end=\"2862\">Courbure (Rmin)<\/strong>est contr\u00f4l\u00e9e par <strong data-start=\"2885\" data-end=\"2912\">trajectoires liss\u00e9es<\/strong> et la s\u00e9quence de pouss\u00e9e ; les corrections brusques sont \u00e9vit\u00e9es.<\/p><\/li><\/ul><h2 data-start=\"2979\" data-end=\"3005\">5) <em data-start=\"2987\" data-end=\"2997\">Tel que construit<\/em> et AQ\/CQ<\/h2><ul data-start=\"3006\" data-end=\"3309\"><li data-start=\"3006\" data-end=\"3091\"><p data-start=\"3008\" data-end=\"3091\"><strong data-start=\"3008\" data-end=\"3019\">Capture<\/strong>Axe 3D par anneau\/port\u00e9e, pentes, pouss\u00e9es et pressions pertinentes.<\/p><\/li><li data-start=\"3092\" data-end=\"3201\"><p data-start=\"3094\" data-end=\"3201\"><strong data-start=\"3094\" data-end=\"3105\">Livraison<\/strong>: plat <em data-start=\"3113\" data-end=\"3123\">tel que construit<\/em> (DWG\/LandXML), listes des tol\u00e9rances atteintes et <strong data-start=\"3176\" data-end=\"3198\">dossier de qualit\u00e9<\/strong>.<\/p><\/li><li data-start=\"3202\" data-end=\"3309\"><p data-start=\"3204\" data-end=\"3309\"><strong data-start=\"3204\" data-end=\"3220\">Tra\u00e7abilit\u00e9<\/strong>donn\u00e9es sign\u00e9es par les responsables de la topographie et des tunnels ; \u00e9tapes de r\u00e9\u00e9talonnage document\u00e9es.<\/p><\/li><\/ul><h2 data-start=\"3316\" data-end=\"3356\">6) Erreurs typiques et comment les \u00e9viter<\/h2><ul data-start=\"3357\" data-end=\"3703\"><li data-start=\"3357\" data-end=\"3471\"><p data-start=\"3359\" data-end=\"3471\"><strong data-start=\"3359\" data-end=\"3397\">D\u00e9rive due \u00e0 la temp\u00e9rature ou aux vibrations<\/strong> \u2192 compensations thermiques, supports anti-vibration, filtres de lecture.<\/p><\/li><li data-start=\"3472\" data-end=\"3594\"><p data-start=\"3474\" data-end=\"3594\"><strong data-start=\"3474\" data-end=\"3505\">D\u00e9salignement d\u00fb \u00e0 la faiblesse du r\u00e9seau<\/strong> \u2192 renforcement des bases, piquetage redondant, fermetures et <strong data-start=\"3559\" data-end=\"3591\">ajustement par les moindres carr\u00e9s<\/strong>.<\/p><\/li><li data-start=\"3595\" data-end=\"3703\"><p data-start=\"3597\" data-end=\"3703\"><strong data-start=\"3597\" data-end=\"3633\">Perte de visibilit\u00e9 du laser<\/strong> \u2192 nettoyage de la ligne, <em data-start=\"3655\" data-end=\"3663\">sauvegarde<\/em> le gyroscope et les points de contr\u00f4le de l'amarrage ext\u00e9rieur.<\/p><\/li><\/ul><h2 data-start=\"3710\" data-end=\"3759\">7) Ce qu'il faut demander \u00e0 l'entrepreneur avant de commencer<\/h2><ul data-start=\"3760\" data-end=\"4093\"><li data-start=\"3760\" data-end=\"3859\"><p data-start=\"3762\" data-end=\"3859\"><strong data-start=\"3762\" data-end=\"3780\">Plan d'orientation<\/strong> (laser, gyroscope ou hybride) avec une pr\u00e9cision nominale et des protocoles de recalibrage.<\/p><\/li><li data-start=\"3860\" data-end=\"3939\"><p data-start=\"3862\" data-end=\"3939\"><strong data-start=\"3862\" data-end=\"3882\">Plan topographique<\/strong> (r\u00e9seau, stations, redondance, fr\u00e9quences et alarmes).<\/p><\/li><li data-start=\"3940\" data-end=\"4028\"><p data-start=\"3942\" data-end=\"4028\"><strong data-start=\"3942\" data-end=\"3975\">Format des donn\u00e9es et <em data-start=\"3963\" data-end=\"3973\">tel que construit<\/em><\/strong> (produits livrables, coordonn\u00e9es, syst\u00e8mes et versions).<\/p><\/li><li data-start=\"4029\" data-end=\"4093\"><p data-start=\"4031\" data-end=\"4093\"><strong data-start=\"4031\" data-end=\"4056\">Matrice de tol\u00e9rance<\/strong> par tranche et des crit\u00e8res d'acceptation.<\/p><\/li><\/ul><p data-start=\"4095\" data-end=\"4313\">Pour plus d'informations sur les crit\u00e8res de s\u00e9lection des syst\u00e8mes de guidage et leur pr\u00e9cision, il est utile de lire le rapport de <a href=\"https:\/\/www.ita-aites.org\/\"><strong data-start=\"4198\" data-end=\"4243\">ITAtech sur <em data-start=\"4214\" data-end=\"4241\">Syst\u00e8mes de guidage pour les TBM<\/em><\/strong><\/a> (alignement, capteurs et meilleures pratiques).<\/p><p data-start=\"4315\" data-end=\"4687\" data-is-last-node=\"\" data-is-only-node=\"\"><strong data-start=\"4315\" data-end=\"4334\">Prochaine \u00e9tape :<\/strong> Si vous avez besoin de v\u00e9rifier votre routage et vos tol\u00e9rances, notre \u00e9quipe d'experts est l\u00e0 pour vous aider. <strong data-start=\"4403\" data-end=\"4499\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/fr\/assistance-technique-et-ingenierie\/\" target=\"_new\" rel=\"noopener\" data-start=\"4405\" data-end=\"4497\">Assistance technique et ing\u00e9nierie<\/a><\/strong> peut d\u00e9finir le <strong data-start=\"4517\" data-end=\"4545\">plan d'orientation et de contr\u00f4le<\/strong> en fonction de votre DN\/L\/Rmin et de la g\u00e9otechnique ; si vous disposez d\u00e9j\u00e0 de plans et de forages, <strong data-start=\"4617\" data-end=\"4686\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/fr\/demande-doffre\/\" target=\"_new\" rel=\"noopener\" data-start=\"4619\" data-end=\"4684\">demander une offre<\/a><\/strong>.<\/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\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>En hinca de tuber\u00eda (microt\u00fanel) la alineaci\u00f3n se gobierna con un sistema de guiado (l\u00e1ser o girosc\u00f3pico) dentro del escudo, topograf\u00eda externa con estaciones totales autom\u00e1ticas y un ciclo continuo de correcci\u00f3n\u2013verificaci\u00f3n\u2013registro que culmina en el as-built. 1) Principio operativo (control de eje y pendiente) Lectura: el objetivo\/target del escudo recibe el haz l\u00e1ser o [&hellip;]<\/p>\n","protected":false},"author":80,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[146],"tags":[],"class_list":["post-4714","post","type-post","status-publish","format-standard","hentry","category-preguntas-frecuentes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Control de alineaci\u00f3n en hinca: l\u00e1ser, gyro y as-built<\/title>\n<meta name=\"description\" content=\"C\u00f3mo mantener la precisi\u00f3n en microt\u00faneles e hincas: control de alineaci\u00f3n en tiempo real, guiado teledirigido y supervisi\u00f3n t\u00e9cnica.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eurohinca.com\/fr\/comment-lalignement-est-controle-en-temps-reel\/\" 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