{"id":17164,"date":"2016-07-07T15:30:23","date_gmt":"2016-07-07T13:30:23","guid":{"rendered":"https:\/\/www.uretek.ch\/?p=17164\/"},"modified":"2020-03-03T18:49:58","modified_gmt":"2020-03-03T17:49:58","slug":"guida-alla-progettazione","status":"publish","type":"post","link":"https:\/\/www.uretek.ch\/it\/guida-alla-progettazione\/","title":{"rendered":"Guida alla progettazione"},"content":{"rendered":"<section class=\"l-section wpb_row height_small\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"wpb_text_column us_custom_fb61d78a\"><div class=\"wpb_wrapper\"><p>(solo in francese)<\/p>\n<h4>Le guide de conception relatif \u00e0 l\u2019\u00e9tude de mesures d\u2019am\u00e9lioration des sols de construction au moyen d\u2019injections de r\u00e9sine polyur\u00e9tane expansive, doit offrir aux ing\u00e9nieurs civils, architectes, professionnels de la construction, g\u00e9ologues et g\u00e9otechniciens, des instructions pour l\u2019\u00e9tude et l\u2019ex\u00e9cution de leurs travaux. Le guide permet, dans la phase d\u2019avant-projet d\u00e9j\u00e0, d\u2019\u00e9valuer si la m\u00e9thode URETEK peut \u00eatre mise en oeuvre et, d\u2019autre part, si les processus dans le sol peuvent \u00eatre mieux cern\u00e9s sur la base d\u2019une injection de r\u00e9sine polyur\u00e9tane.<\/h4>\n<p>Le guide de conception pour l\u2019am\u00e9lio\u00adration des sols par l\u2019injection de \u00adr\u00e9sine polyur\u00e9tane (PUR) expansive a \u00e9t\u00e9 \u00adtraduit de l\u2019italien en allemand (existe aussi en fran\u00e7ais). L\u2019objectif principal du livre est de mettre \u00e0 disposition des concepteurs de mesures d\u2019am\u00e9lioration des sols, gr\u00e2ce \u00e0 la m\u00e9thode URETEK, une base de travail ainsi que des instructions pour leur permettre de pr\u00e9dimensionner individuellement de telles mesures.<\/p>\n<h3>D\u00e9roulement du travail<\/h3>\n<p>Les propri\u00e9t\u00e9s physiques et \u00adm\u00e9caniques du PUR ainsi que ses domaines d\u2019application g\u00e9n\u00e9raux sont d\u00e9crits en introduction dans le guide. Les \u00addomaines et possibilit\u00e9s d\u2019application g\u00e9otechniques de la m\u00e9thode URETEK sont multiples. Pour ex\u00e9cuter les injections \u00e0 une profondeur donn\u00e9e, la r\u00e9sine PUR est inject\u00e9e \u00e0 l\u2019\u00e9tat liquide dans le sol \u00e0 consolider par des tubes d\u2019injection introduits dans des petits forages d\u2019un diam\u00e8tre maximal de 30 mm, pr\u00e9alablement for\u00e9s. La r\u00e9sine PUR inject\u00e9e \u00adgonfle alors fortement et agit de mani\u00e8re \u00e0 compacter le sol environnant, ce qui permet une augmentation de la portance du sol. Dans les sols \u00e0 grains grossiers \u00ad(sables et graviers), l\u2019injection PUR traverse les volumes des vides et il se cr\u00e9e un \u00adconglom\u00e9rat monolithique avec des propri\u00e9t\u00e9s m\u00e9ca\u00adniques plus importantes (figure 1), par contre les pores des sols coh\u00e9rents \u00e0 grains fins (argiles et limons) ne sont pas \u00adtravers\u00e9s mais il se forme un r\u00e9seau \u00e0 mailles \u00adserr\u00e9es et lamellaire semblable aux \u00adracines d\u2019une plante (figure 2).<\/p>\n<\/div><\/div><div class=\"g-cols wpb_row via_flex valign_top type_boxes stacking_default\" style=\"--additional-gap:25px;\"><div class=\"vc_col-sm-6 wpb_column vc_column_container has_bg_color\"><div class=\"vc_column-inner us_custom_9f274f1b\"><div class=\"wpb_wrapper\"><div class=\"w-image align_none meta_simple\"><a ref=\"magnificPopup\" href=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_1.jpg\" aria-label=\"Figure 1\" class=\"w-image-h\"><img decoding=\"async\" width=\"660\" height=\"825\" src=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_1.jpg\" class=\"attachment-large size-large\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_1.jpg 660w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_1-360x450.jpg 360w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_1-600x750.jpg 600w\" sizes=\"auto, (max-width: 660px) 100vw, 660px\" \/><\/a><div class=\"w-image-meta\"><div class=\"w-image-title\">Figure 1<\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container has_bg_color\"><div class=\"vc_column-inner us_custom_9f274f1b\"><div class=\"wpb_wrapper\"><div class=\"w-image align_none meta_simple\"><a ref=\"magnificPopup\" href=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_2.jpg\" aria-label=\"Figure 2\" class=\"w-image-h\"><img decoding=\"async\" width=\"660\" height=\"825\" src=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_2.jpg\" class=\"attachment-large size-large\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_2.jpg 660w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_2-360x450.jpg 360w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_2-600x750.jpg 600w\" sizes=\"auto, (max-width: 660px) 100vw, 660px\" \/><\/a><div class=\"w-image-meta\"><div class=\"w-image-title\">Figure 2<\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"wpb_text_column us_custom_3012d22b\"><div class=\"wpb_wrapper\"><h3>Possibilit\u00e9s d\u2019application<\/h3>\n<p>L\u2019augmentation de la portance ou l\u2019am\u00e9lioration du sol d\u2019infrastructures existantes destin\u00e9es \u00e0 \u00eatre sur\u00e9lev\u00e9es, pour permettre une densit\u00e9 d\u2019utilisation plus importante ou un changement d\u2019affectation, sont des exemples de possibilit\u00e9s de mise en oeuvre pour des injections plus profondes dans le sol. Une autre application est la sauvegarde d\u2019immeubles pr\u00e9sentant des d\u00e9g\u00e2ts dus \u00e0 des tassements. L\u2019injection de r\u00e9sine PUR \u00e0 certaines profondeurs peut permettre une stabilisation du sol ou de \u00adcompenser des tassements diff\u00e9rentiels par le \u00adrele\u00ad\u00advage des fondations (figure 3). La stabi\u00adlisation ou le relevage de b\u00e2timents au moyen d\u2019injection de r\u00e9sine PUR peut pr\u00e9senter une alternative moins \u00adon\u00e9reuse que la \u00adreprise en sous-oeuvre conventionnelle.<\/p>\n<p>La proc\u00e9dure et les effets sont sem\u00adblables pour les injections proches de la surface du sol. Les possibilit\u00e9s de mise en oeuvre peuvent pourtant \u00eatre consid\u00e9rablement \u00e9largies. Il est possible, par exemple, d\u2019am\u00e9liorer des routes par une stabilisation ou de relever des couches de fondation de routes (coffrages), \u00adcouche de couverture comprise. La stabilisation de cul\u00e9es de ponts et de murs de sout\u00e8\u00adnement est \u00e9galement possible par des injections de r\u00e9sine PUR dans le sol. En outre, l\u2019injection de r\u00e9sine PUR dans des sols se contractant ou \u00adgonflant \u00ad(argiles) permet de r\u00e9duire la perm\u00e9abilit\u00e9 \u00adhydraulique. Il en r\u00e9sulte des d\u00e9formations diff\u00e9rentielles plus faibles et donc moins de d\u00e9g\u00e2ts (fissures) aux infrastructures ou b\u00e2timents existant.<\/p>\n<\/div><\/div><div class=\"g-cols wpb_row via_flex valign_top type_boxes stacking_default\" style=\"--additional-gap:25px;\"><div class=\"vc_col-sm-6 wpb_column vc_column_container has_bg_color\"><div class=\"vc_column-inner us_custom_9f274f1b\"><div class=\"wpb_wrapper\"><div class=\"w-image align_none meta_simple\"><a ref=\"magnificPopup\" href=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_3.jpg\" aria-label=\"Figure 3\" class=\"w-image-h\"><img decoding=\"async\" width=\"660\" height=\"494\" src=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_3.jpg\" class=\"attachment-large size-large\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_3.jpg 660w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_3-450x337.jpg 450w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_3-600x449.jpg 600w\" sizes=\"auto, (max-width: 660px) 100vw, 660px\" \/><\/a><div class=\"w-image-meta\"><div class=\"w-image-title\">Figure 3<\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 wpb_column vc_column_container has_bg_color\"><div class=\"vc_column-inner us_custom_9f274f1b\"><div class=\"wpb_wrapper\"><div class=\"w-image align_none meta_simple\"><a ref=\"magnificPopup\" href=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_4.jpg\" aria-label=\"Figure 4\" class=\"w-image-h\"><img decoding=\"async\" width=\"660\" height=\"494\" src=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_4.jpg\" class=\"attachment-large size-large\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_4.jpg 660w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_4-450x337.jpg 450w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_4-600x449.jpg 600w\" sizes=\"auto, (max-width: 660px) 100vw, 660px\" \/><\/a><div class=\"w-image-meta\"><div class=\"w-image-title\">Figure 4<\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"wpb_text_column us_custom_83434372\"><div class=\"wpb_wrapper\"><h3>Avantages<\/h3>\n<p>Les avantages principaux de la m\u00e9thode URETEK par rapport aux mesures conventionnelles d\u2019am\u00e9lioration des sols ou de reprise en sous-oeuvre de b\u00e2timents sont une courte p\u00e9riode de travaux et une intervention constructive minimale. Pour introduire les tubes d\u2019injection, des trous d\u2019un diam\u00e8tre maximal de 30 mm sont for\u00e9s par la fondation. Ceux-ci peuvent \u00e9galement \u00eatre ex\u00e9cut\u00e9s \u00e0 l\u2019int\u00e9rieur de b\u00e2timents et provoquent peu de d\u00e9range\u00adments. Dans la plupart des cas, seuls des travaux d\u2019excavation peu importants sont n\u00e9cessaires, par exemple lorsque il faut ajuster des conduites de services dans une cave \u00e0 la suite du relevage d\u2019un immeuble ou placer les presses plates d\u2019assistance (figure 4). L\u2019\u00e9limination \u00adsimple de tassements diff\u00e9rentiels qui peut \u00eatre r\u00e9alis\u00e9e \u00e9galement sous les murs int\u00e9rieurs d\u2019une cave ou au milieu de la dalle de fondation pr\u00e9sente bien des avantages. L\u2019\u00e9limination des m\u00eames d\u00e9g\u00e2ts est beaucoup plus compliqu\u00e9e et on\u00e9reuse par une m\u00e9thode classique de reprise en sous-oeuvre par micro-pieux. Les injections de r\u00e9sine PUR expansive permettent, outre d\u2019augmenter la portance du sol, de diminuer la perm\u00e9abilit\u00e9 de celui-ci. A cause de tous ces nombreux avantages la m\u00e9thode URETEK est une alternative attractive pour l\u2019am\u00e9lioration de sols de construction ou pour des relevages de b\u00e2timents.<\/p>\n<h3>Th\u00e9orie de la fissuration<\/h3>\n<p>Dans le guide, plusieurs des \u00admultiples \u00addomaines d\u2019application cit\u00e9s \u00adci-dessus sont \u00e9tay\u00e9s dans les chapitres \u00adsuivants par des mod\u00e8les th\u00e9oriques et \u00adnum\u00e9\u00adriques (figure 5). En particulier, les conditions aux limites de la th\u00e9orie de la fissuration, appliqu\u00e9e pour les \u00adrelevages d\u2019immeubles, sont d\u00e9crites en d\u00e9tail. Dans la plupart des cas, les b\u00e2timents \u00e0 relever sont fond\u00e9s dans des conditions de consolidation normales du sol de \u00adconstruction avec un coefficient de pouss\u00e9e des terres au repos de K0 &lt; 1.0 (K0 = contrainte horizontale\/contrainte verticale). Dans ces \u00adconditions, une premi\u00e8re s\u00e9rie d\u2019injections de \u00adr\u00e9sine induit, \u00e0 une profondeur \u00add\u00e9termin\u00e9e, la cr\u00e9ation de fissures en direction verticale. L\u2019expansion de la r\u00e9sine conduit \u00e0 une augmentation des contraintes horizontales \u00e0 l\u2019endroit du sol inject\u00e9 et une deuxi\u00e8me s\u00e9rie d\u2019injections permet alors la formation de fissures dans le plan \u00adhorizontal. La formation de ces fissures provoque ainsi le relevage des fondations du b\u00e2timent.<\/p>\n<p>Des exemples num\u00e9riques d\u2019injections de r\u00e9sine PUR expansive dans des sols \u00e0 grains grossiers et dans des sols \u00e0 grains fins sont pr\u00e9sent\u00e9s \u00e0 la fin du guide.<\/p>\n<\/div><\/div><div class=\"g-cols wpb_row via_flex valign_top type_boxes stacking_default\" style=\"--additional-gap:25px;\"><div class=\"vc_col-sm-6 wpb_column vc_column_container has_bg_color\"><div class=\"vc_column-inner us_custom_9f274f1b\"><div class=\"wpb_wrapper\"><div class=\"w-image align_none meta_simple\"><a ref=\"magnificPopup\" href=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_5.jpg\" aria-label=\"Figure 5\" class=\"w-image-h\"><img decoding=\"async\" width=\"660\" height=\"436\" src=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_5.jpg\" class=\"attachment-large size-large\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_5.jpg 660w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_5-450x297.jpg 450w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/02\/abb_5-600x396.jpg 600w\" sizes=\"auto, (max-width: 660px) 100vw, 660px\" \/><\/a><div class=\"w-image-meta\"><div class=\"w-image-title\">Figure 5<\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_col-sm-6 vc_hidden-xs wpb_column vc_column_container\"><div class=\"vc_column-inner us_custom_57f5615c\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><\/div><div class=\"wpb_text_column us_custom_e6eac85f\"><div class=\"wpb_wrapper\"><h3>Assurance qualit\u00e9 du guide<\/h3>\n<p>Le \u00abKompetenzzentrum f\u00fcr Kunststoffe im Bauwesen (KIB)\u00bb (centre de comp\u00e9\u00adtence pour mati\u00e8res synth\u00e9tiques dans la construction) de la HSR Hochschule f\u00fcr Technik de Rapperswil a \u00e9t\u00e9 \u00admandat\u00e9 par URETEK Schweiz AG pour proc\u00e9der \u00e0 l\u2019assurance qualit\u00e9 de la traduction de l\u2018italien en allemand du guide. Parall\u00e8lement, une collaboration active existe depuis un certain temps dans Ra&amp;D, Recherche appliqu\u00e9e et D\u00e9veloppement. D\u2019autres informations relatives au centre de comp\u00e9tence se trouvent sous www.kib.hsr.ch.<\/p>\n<p>Christian Bommer, MSc ing\u00e9nieur \u00adcivil,<br \/>\ndirecteur KIB<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-17198\" src=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/07\/KIB_Logo-450x87.png\" alt=\"\" width=\"280\" height=\"54\" srcset=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/07\/KIB_Logo-450x87.png 450w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/07\/KIB_Logo-600x116.png 600w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/07\/KIB_Logo.png 660w\" sizes=\"auto, (max-width: 280px) 100vw, 280px\" \/><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-17195\" src=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/07\/HSR_Logo-450x124.png\" alt=\"\" width=\"280\" height=\"77\" srcset=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/07\/HSR_Logo-450x124.png 450w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/07\/HSR_Logo-600x165.png 600w, https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/07\/HSR_Logo.png 661w\" sizes=\"auto, (max-width: 280px) 100vw, 280px\" \/><\/p>\n<\/div><\/div><div class=\"w-separator size_medium with_line width_default thick_1 style_solid color_border align_center\"><div class=\"w-separator-h\"><\/div><\/div><div class=\"wpb_text_column us_custom_7833479c\"><div class=\"wpb_wrapper\"><h3>Exemple de calcul \u00e0 t\u00e9l\u00e9charger<\/h3>\n<\/div><\/div><div class=\"w-btn-wrapper align_none\"><a class=\"w-btn us-btn-style_3 dwld_links icon_atleft\" target=\" _blank\" rel=\"nofollow\" href=\"https:\/\/www.uretek.ch\/wp-content\/uploads\/2017\/07\/Guide_Exemple-de-calcul_fr.pdf\"><i class=\"far fa-file-pdf\"><\/i><span class=\"w-btn-label\">Exemple de calcul (de GEO.ACTION 6\/2016)<\/span><\/a><\/div><div class=\"w-separator size_medium with_line width_default thick_2 style_solid color_border align_center\"><div 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value=\"\" type=\"text\" name=\"vorname\" \/><\/span>\n\t<\/p>\n<\/div>\n<div class=\"form_half form_half_last\">\n\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"nachname\"><input size=\"40\" maxlength=\"80\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Cognome*\" value=\"\" type=\"text\" name=\"nachname\" \/><\/span>\n\t<\/p>\n<\/div>\n<div class=\"form_spacer\">\n\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"firmenname\"><input size=\"40\" maxlength=\"80\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Azienda\" value=\"\" type=\"text\" name=\"firmenname\" \/><\/span>\n\t<\/p>\n<\/div>\n<div class=\"form_spacer\">\n\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"strasse\"><input size=\"40\" maxlength=\"80\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Strada\/No.\" value=\"\" type=\"text\" name=\"strasse\" 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style=\"font-size:0.9rem;\">\n\t<p>Per proteggersi dallo spam, rispondi alla seguente domanda: <span class=\"wpcf7-form-control-wrap\" data-name=\"quiz-594\"><label><span class=\"wpcf7-quiz-label\">otto + tre = ? (numero come parola)<\/span> <input size=\"40\" class=\"wpcf7-form-control wpcf7-quiz\" autocomplete=\"off\" aria-required=\"true\" aria-invalid=\"false\" type=\"text\" name=\"quiz-594\" \/><\/label><input type=\"hidden\" name=\"_wpcf7_quiz_answer_quiz-594\" value=\"456d45dcf2b4645ab047dc3911619491\" \/><\/span>\n\t<\/p>\n<\/div>\n<div id=\"anfrage\">\n\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Invia modulo\" \/>\n\t<\/p>\n<\/div>\n<div class=\"form_spacer\">\n\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"acceptance-277\"><span class=\"wpcf7-form-control wpcf7-acceptance\"><span class=\"wpcf7-list-item\"><label><input type=\"checkbox\" name=\"acceptance-277\" value=\"1\" aria-invalid=\"false\" \/><span class=\"wpcf7-list-item-label\">Dichiara di accettare che i Suoi dati vengano utilizzati per l\u2019elaborazione della Sua richiesta e di aver letto la nostra <a href=\"https:\/\/www.uretek.ch\/it\/protezione-dei-dati\/\" target=\"_blank\">dichiarazione sulla protezione dei dati.<\/a> I Suoi dati di contatto non saranno inoltrati a terzi.<\/span><\/label><\/span><\/span><\/span>\n\t<\/p>\n<\/div><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n<\/div><\/div><\/div><div class=\"w-popup-closer\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"(solo in francese) Le guide de conception relatif \u00e0 l\u2019\u00e9tude de mesures d\u2019am\u00e9lioration des sols de construction au moyen d\u2019injections de r\u00e9sine polyur\u00e9tane expansive, doit offrir aux ing\u00e9nieurs civils, architectes, professionnels de la construction, g\u00e9ologues et g\u00e9otechniciens, des instructions pour l\u2019\u00e9tude et l\u2019ex\u00e9cution de leurs travaux. Le guide permet, dans la phase d\u2019avant-projet d\u00e9j\u00e0, d\u2019\u00e9valuer...","protected":false},"author":1,"featured_media":17220,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[222],"tags":[],"class_list":["post-17164","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articoli-technici-it"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Leitfaden zur Projektierung \u00bb URETEK Schweiz AG<\/title>\n<meta name=\"description\" content=\"Anleitung f\u00fcr die Planung und Ausf\u00fchrung von Baugrundverbesserungen durch Injektionen von expandierendem Polyurethanharz f\u00fcr Bauingenieure, usw.\" \/>\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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