{"id":5091,"date":"2026-01-27T08:23:58","date_gmt":"2026-01-27T08:23:58","guid":{"rendered":"https:\/\/eurohinca.com\/?p=5091"},"modified":"2026-01-27T08:30:47","modified_gmt":"2026-01-27T08:30:47","slug":"quels-sont-les-tests-preliminaires-recommandes-avant-de-lancer-un-appel-doffres-pour-un-projet-de-foncage-de-tuyaux","status":"publish","type":"post","link":"https:\/\/eurohinca.com\/fr\/que-ensayos-previos-son-recomendables-antes-de-licitar-una-hinca-de-tuberia\/","title":{"rendered":"Quels essais pr\u00e9alables (en laboratoire et sur le terrain) sont recommand\u00e9s avant de lancer un appel d'offres pour le fon\u00e7age de tuyaux ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5091\" class=\"elementor elementor-5091\" 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=\"554\">Avant de lancer un appel d'offres <strong data-start=\"126\" data-end=\"207\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/fr\/eperonnage-de-tuyaux-2\/\" target=\"_new\" rel=\"noopener\" data-start=\"128\" data-end=\"205\">le fon\u00e7age de tuyaux (microtunnelage)<\/a><\/strong>, Afin de r\u00e9duire l'incertitude, il est plus rentable d'investir dans une pr\u00e9-campagne de r\u00e9duction de l'incertitude : <strong data-start=\"289\" data-end=\"399\">le type de sol, la perm\u00e9abilit\u00e9\/la nappe phr\u00e9atique, la r\u00e9sistance \u00e0 la d\u00e9formation, l'abrasivit\u00e9 et les risques frontaux<\/strong>. Ces donn\u00e9es peuvent \u00eatre utilis\u00e9es pour affiner l'analyse de l'information. <strong data-start=\"435\" data-end=\"458\">s\u00e9lection des \u00e9quipes<\/strong>, La conception des puits et le partage des risques du c\u00f4t\u00e9 de l'offre.<\/p><h2 data-start=\"556\" data-end=\"634\">Essais sur le terrain recommand\u00e9s (\u00e9tudes g\u00e9otechniques et hydrog\u00e9ologiques)<\/h2><ol data-start=\"635\" data-end=\"2140\"><li data-start=\"635\" data-end=\"940\"><p data-start=\"638\" data-end=\"707\"><strong data-start=\"638\" data-end=\"705\">Sondages le long de l'itin\u00e9raire (et dans les forages d'attaque\/r\u00e9ception)<\/strong><\/p><ul data-start=\"711\" data-end=\"940\"><li data-start=\"711\" data-end=\"822\"><p data-start=\"713\" data-end=\"822\">Carotte continue (le cas \u00e9ch\u00e9ant), description stratigraphique et \u00e9chantillonnage non alt\u00e9r\u00e9 si possible.<\/p><\/li><li data-start=\"826\" data-end=\"940\"><p data-start=\"828\" data-end=\"940\"><strong data-start=\"828\" data-end=\"835\">SPT<\/strong> dans les sols granulaires \/ remblais h\u00e9t\u00e9rog\u00e8nes (au moins pour les corr\u00e9lations et le contr\u00f4le de la variabilit\u00e9).<\/p><\/li><\/ul><\/li><li data-start=\"942\" data-end=\"1155\"><p data-start=\"945\" data-end=\"1019\"><strong data-start=\"945\" data-end=\"1017\">CPT\/CPTu (p\u00e9n\u00e9trom\u00e8tre statique, id\u00e9al pour les sols mous\/granuleux)<\/strong><\/p><ul data-start=\"1023\" data-end=\"1155\"><li data-start=\"1023\" data-end=\"1155\"><p data-start=\"1025\" data-end=\"1155\">Tr\u00e8s utile pour \u00e9tablir le profil des changements de strates, estimer la r\u00e9sistance et d\u00e9tecter les lentilles granuleuses.<\/p><\/li><\/ul><\/li><li data-start=\"1157\" data-end=\"1507\"><p data-start=\"1160\" data-end=\"1214\"><strong data-start=\"1160\" data-end=\"1212\">Contr\u00f4le de l'eau : nappe phr\u00e9atique et perm\u00e9abilit\u00e9<\/strong><\/p><ul data-start=\"1218\" data-end=\"1507\"><li data-start=\"1218\" data-end=\"1324\"><p data-start=\"1220\" data-end=\"1324\">Installation de <strong data-start=\"1235\" data-end=\"1250\">pi\u00e9zom\u00e8tres<\/strong> et la surveillance (y compris les variations saisonni\u00e8res ou les mar\u00e9es, le cas \u00e9ch\u00e9ant).<\/p><\/li><li data-start=\"1328\" data-end=\"1507\"><p data-start=\"1330\" data-end=\"1507\">Tests de perm\u00e9abilit\u00e9 <strong data-start=\"1355\" data-end=\"1366\">in situ<\/strong> (selon le terrain) : Lefranc dans les sols, packer\/Lugeon dans la roche, et\/ou <strong data-start=\"1430\" data-end=\"1451\">essais de pompage<\/strong> si l'aquif\u00e8re peut conditionner le front ou les puits.<\/p><\/li><\/ul><\/li><li data-start=\"1509\" data-end=\"1802\"><p data-start=\"1512\" data-end=\"1562\"><strong data-start=\"1512\" data-end=\"1560\">Tests compl\u00e9mentaires sur place (le cas \u00e9ch\u00e9ant)<\/strong><\/p><ul data-start=\"1566\" data-end=\"1802\"><li data-start=\"1566\" data-end=\"1680\"><p data-start=\"1568\" data-end=\"1680\"><strong data-start=\"1568\" data-end=\"1581\">Essai d'aube<\/strong> dans les argiles molles, <strong data-start=\"1603\" data-end=\"1622\">manom\u00e8tre\/DMT<\/strong> si vous avez besoin de param\u00e8tres de d\u00e9formabilit\u00e9 et d'assise.<\/p><\/li><li data-start=\"1684\" data-end=\"1802\"><p data-start=\"1686\" data-end=\"1802\">La g\u00e9ophysique (sismique, g\u00e9oradar, etc.) pour d\u00e9tecter des h\u00e9t\u00e9rog\u00e9n\u00e9it\u00e9s, des lacunes ou des contrastes si l'environnement le justifie.<\/p><\/li><\/ul><\/li><li data-start=\"1804\" data-end=\"2140\"><p data-start=\"1807\" data-end=\"1868\"><strong data-start=\"1807\" data-end=\"1866\">Reconnaissance des services\/obstacles et contraintes<\/strong><\/p><ul data-start=\"1872\" data-end=\"2140\"><li data-start=\"1872\" data-end=\"1964\"><p data-start=\"1874\" data-end=\"1964\">Dans les zones urbaines : campagnes de d\u00e9tection des services + identification des structures sensibles.<\/p><\/li><li data-start=\"1968\" data-end=\"2140\"><p data-start=\"1970\" data-end=\"2140\">Pour les passages sous les cours d'eau : il peut \u00eatre n\u00e9cessaire de r\u00e9aliser des \u00e9tudes sp\u00e9cifiques (bathym\u00e9trie\/topo-bathym\u00e9trie) en plus des \u00e9tudes g\u00e9otechniques.<\/p><\/li><\/ul><\/li><\/ol><h2 data-start=\"2142\" data-end=\"2182\">Examens de laboratoire recommand\u00e9s<\/h2><ol data-start=\"2183\" data-end=\"3393\"><li data-start=\"2183\" data-end=\"2439\"><p data-start=\"2186\" data-end=\"2232\"><strong data-start=\"2186\" data-end=\"2230\">Identification et classification des sols<\/strong><\/p><ul data-start=\"2236\" data-end=\"2439\"><li data-start=\"2236\" data-end=\"2439\"><p data-start=\"2238\" data-end=\"2439\">Humidit\u00e9, densit\u00e9s, <strong data-start=\"2259\" data-end=\"2276\">granulom\u00e9trie<\/strong> y <strong data-start=\"2279\" data-end=\"2303\">Limites d'Atterberg<\/strong> (essentiel pour \u00e9valuer le comportement, la plasticit\u00e9 et le potentiel de colmatage dans certains sc\u00e9narios).<\/p><\/li><\/ul><\/li><li data-start=\"2441\" data-end=\"2769\"><p data-start=\"2444\" data-end=\"2478\"><strong data-start=\"2444\" data-end=\"2476\">R\u00e9sistance et d\u00e9formabilit\u00e9<\/strong><\/p><ul data-start=\"2482\" data-end=\"2769\"><li data-start=\"2482\" data-end=\"2671\"><p data-start=\"2484\" data-end=\"2671\">Dans les sols : compression simple et\/ou <strong data-start=\"2517\" data-end=\"2531\">triaxial<\/strong> (UU\/CU\/CD selon les besoins), et <strong data-start=\"2562\" data-end=\"2574\">oedom\u00e8tre<\/strong> pour la consolidation\/d\u00e9formabilit\u00e9 si les si\u00e8ges sont concern\u00e9s.<\/p><\/li><li data-start=\"2675\" data-end=\"2769\"><p data-start=\"2677\" data-end=\"2769\">Dans la roche : <strong data-start=\"2686\" data-end=\"2693\">NGC<\/strong> (compression simple), charge ponctuelle et caract\u00e9risation g\u00e9om\u00e9canique le cas \u00e9ch\u00e9ant.<\/p><\/li><\/ul><\/li><li data-start=\"2771\" data-end=\"2978\"><p data-start=\"2774\" data-end=\"2831\"><strong data-start=\"2774\" data-end=\"2829\">Perm\u00e9abilit\u00e9 du laboratoire (le cas \u00e9ch\u00e9ant)<\/strong><\/p><ul data-start=\"2835\" data-end=\"2978\"><li data-start=\"2835\" data-end=\"2978\"><p data-start=\"2837\" data-end=\"2978\">Essais pour estimer le coefficient de perm\u00e9abilit\u00e9 et soutenir le choix de la m\u00e9thode et le contr\u00f4le de l'eau.<\/p><\/li><\/ul><\/li><li data-start=\"2980\" data-end=\"3198\"><p data-start=\"2983\" data-end=\"3059\"><strong data-start=\"2983\" data-end=\"3057\">Abrasivit\u00e9 et usure (en particulier dans les roches ou les granul\u00e9s contenant du quartz)<\/strong><\/p><ul data-start=\"3063\" data-end=\"3198\"><li data-start=\"3063\" data-end=\"3198\"><p data-start=\"3065\" data-end=\"3198\">Tests d'abrasivit\u00e9 (par exemple Cerchar\/LCPC ou autres en fonction du programme) pour anticiper la consommation, la performance et les co\u00fbts des outils.<\/p><\/li><\/ul><\/li><li data-start=\"3200\" data-end=\"3393\"><p data-start=\"3203\" data-end=\"3272\"><strong data-start=\"3203\" data-end=\"3270\">Chimie du sol et de l'eau (durabilit\u00e9 et compatibilit\u00e9)<\/strong><\/p><ul data-start=\"3276\" data-end=\"3393\"><li data-start=\"3276\" data-end=\"3393\"><p data-start=\"3278\" data-end=\"3393\">pH, sulfates, chlorures, agressivit\u00e9 chimique : utile pour la durabilit\u00e9 du b\u00e9ton, la corrosion et la gestion de l'eau et des boues.<\/p><\/li><\/ul><\/li><\/ol><h2 data-start=\"3395\" data-end=\"3457\">Faire des appels d'offres avec moins d'incertitude (ce qui \u201cpaie mieux\u201d)<\/h2><ul data-start=\"3458\" data-end=\"4484\"><li data-start=\"3458\" data-end=\"3843\"><p data-start=\"3460\" data-end=\"3843\">Un mod\u00e8le g\u00e9otechnique et hydrog\u00e9ologique qui permet un choix judicieux de la m\u00e9thode (EPB\/hydro-bouclier\/ouvert) et du dimensionnement des puits et des pouss\u00e9es ; cela correspond \u00e0 <strong data-start=\"3611\" data-end=\"3689\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/fr\/choix-du-tunnelier\/\" target=\"_new\" rel=\"noopener\" data-start=\"3613\" data-end=\"3687\">Choix du tunnelier<\/a><\/strong> et l'approche de <strong data-start=\"3706\" data-end=\"3802\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/fr\/assistance-technique-et-ingenierie\/\" target=\"_new\" rel=\"noopener\" data-start=\"3708\" data-end=\"3800\">Assistance technique et ing\u00e9nierie<\/a><\/strong>.<\/p><\/li><li data-start=\"3844\" data-end=\"4201\"><p data-start=\"3846\" data-end=\"4201\">Pr\u00e9parer l'appel d'offres avec le minimum d'informations essentielles (y compris sur la g\u00e9otechnique et l'eau) : <strong data-start=\"3945\" data-end=\"4160\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/fr\/quelles-sont-les-informations-qui-doivent-etre-incluses-dans-une-demande-de-devis-afin-que-leurohinca-puisse-evaluer-un-croisement-ou-un-emissaire\/\" target=\"_new\" rel=\"noopener\" data-start=\"3947\" data-end=\"4158\">Quelles informations doivent figurer dans un appel d'offres pour \u00e9valuer un ouvrage de franchissement ou un \u00e9missaire ?<\/a><\/strong>.<\/p><\/li><li data-start=\"4202\" data-end=\"4484\"><p data-start=\"4204\" data-end=\"4484\">Si vous souhaitez cibler la campagne sur des risques typiques en fonction du terrain : <strong data-start=\"4266\" data-end=\"4443\"><a class=\"decorated-link\" href=\"https:\/\/eurohinca.com\/fr\/les-risques-geotechniques-les-plus-susceptibles-detre-rencontres-en-fonction-du-type-de-terrain-et-la-maniere-de-les-attenuer-efficacement\/\" target=\"_new\" rel=\"noopener\" data-start=\"4268\" data-end=\"4441\">Risques g\u00e9otechniques par type de sol et mesures d'att\u00e9nuation<\/a><\/strong>.<\/p><\/li><\/ul>\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>Antes de licitar una hinca de tuber\u00eda (microt\u00fanel), lo m\u00e1s rentable es invertir en una campa\u00f1a previa que reduzca incertidumbre en: tipo de terreno, permeabilidad\/nivel fre\u00e1tico, resistencia-deformabilidad, abrasividad y riesgos de frente. Con esos datos se puede afinar la selecci\u00f3n de equipo, el dise\u00f1o de pozos y el reparto de riesgos en la oferta. Ensayos [&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-5091","post","type-post","status-publish","format-standard","hentry","category-preguntas-frecuentes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ensayos para licitar hinca de tuber\u00eda | Eurohinca<\/title>\n<meta name=\"description\" content=\"Ensayos de campo y laboratorio antes de licitar una hinca: sondeos, CPTu, piez\u00f3metros, permeabilidad, resistencia, consolidaci\u00f3n y abrasividad.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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