{"id":25089,"date":"2026-05-12T14:17:50","date_gmt":"2026-05-12T12:17:50","guid":{"rendered":"https:\/\/philipp-group.com\/grounding-technology-for-the-slab-track-on-the-stuttgart-21-project\/"},"modified":"2026-06-23T11:18:55","modified_gmt":"2026-06-23T09:18:55","slug":"grounding-technology-for-the-slab-track-on-the-stuttgart-21-project","status":"publish","type":"post","link":"https:\/\/philipp-group.com\/en\/grounding-technology-for-the-slab-track-on-the-stuttgart-21-project\/","title":{"rendered":"Grounding Technology for the Slab Track on the Stuttgart 21 Project"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"25089\" class=\"elementor elementor-25089 elementor-23686\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-99b69b6 e-flex e-con-boxed e-con e-parent\" data-id=\"99b69b6\" 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-9cde9b3 e-con-full e-flex e-con e-child\" data-id=\"9cde9b3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-24889e1 e-con-full e-flex e-con e-child\" data-id=\"24889e1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-15d1f92 elementor-widget elementor-widget-heading\" data-id=\"15d1f92\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Grounding Technology for the Slab Track on the Stuttgart 21 Project<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ee7698 elementor-widget-mobile__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"2ee7698\" 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>A custom-designed grounding solution for track slabs on a roughly 33-kilometer section of track.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e7678eb e-con-full e-flex e-con e-child\" data-id=\"e7678eb\" 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-8710418 e-con-full e-flex e-con e-child\" data-id=\"8710418\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-b8fb05d e-con-full e-flex e-con e-child\" data-id=\"b8fb05d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5bbd034 elementor-widget elementor-widget-heading\" data-id=\"5bbd034\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Your project.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-febcd25 elementor-widget elementor-widget-heading\" data-id=\"febcd25\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Our solution.<\/p>\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<div class=\"elementor-element elementor-element-5b44328 e-con-full e-flex e-con e-child\" data-id=\"5b44328\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-291cd71 elementor-widget elementor-widget-heading\" data-id=\"291cd71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Every project has its own requirements. Our experts will help you find the right technical solution. <\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-99824c8 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"99824c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/philipp-group.com\/en\/contact-us\/\" target=\"_blank\" rel=\"nofollow\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-arrow-right\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Request a Solution Now<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\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\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-aa5f514 e-con-full e-flex e-con e-child\" data-id=\"aa5f514\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a9dd95a elementor-widget elementor-widget-heading\" data-id=\"a9dd95a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Initial situation and requirements<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-eb2bcbe e-con-full e-flex e-con e-child\" data-id=\"eb2bcbe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9cead8d elementor-widget-mobile__width-inherit elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"9cead8d\" 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=\"221\" data-end=\"470\">For the Stuttgart 21 project, PORR installed a slab track system along a roughly 33-kilometer section of track: a new, sleeperless track system consisting of elastically supported precast concrete elements laid on an asphalt base course.<\/p>\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-1f4f05f elementor-widget-mobile__width-inherit elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"1f4f05f\" 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=\"472\" data-end=\"726\">A solution consisting of sockets and connectors was needed to securely ground the superstructure components. To achieve this, the grounding sockets had to be precisely integrated into the loosely reinforced track slabs. <\/p>\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-0c77065 elementor-widget-mobile__width-inherit elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"0c77065\" 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<section class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [&amp;:has([data-writing-block])&gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:0ffe97d9-e974-467a-8fad-34473956885f-1\" data-testid=\"conversation-turn-4\" data-scroll-anchor=\"false\" data-turn=\"assistant\"><div class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"><div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"><div class=\"flex max-w-full flex-col gap-4 grow\"><div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"9bfb3d35-63b6-4119-b69a-f68b7e369826\" data-message-model-slug=\"gpt-5-5-thinking\" data-turn-start-message=\"true\"><div class=\"flex w-full flex-col gap-1 empty:hidden\"><div class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"><p data-start=\"728\" data-end=\"992\">The requirements included the highest level of dimensional accuracy and, consequently, reliable conductivity; long-term functionality under dynamic loads; and compliance with DB standards\u2014all while accommodating a wide variety of installation scenarios and a wide range of connection lengths.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\t\t\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<div class=\"elementor-element elementor-element-e29d24a e-con-full e-flex e-con e-child\" data-id=\"e29d24a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6efd0df elementor-widget elementor-widget-heading\" data-id=\"6efd0df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Our solution and implementation  <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ef6e8eb e-con-full e-flex e-con e-child\" data-id=\"ef6e8eb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-fe4a690 e-con-full e-flex e-con e-child\" data-id=\"fe4a690\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b23d00b elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"b23d00b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check-square\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Supply of grounding sockets for embedding in the track slabs using flat steel, a threaded sleeve, and a stainless steel washer<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check-square\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Additional corrosion protection provided by the galvanized ends of the grounding sockets\u200b<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6d80c9b e-con-full e-flex e-con e-child\" data-id=\"6d80c9b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-83bdfeb elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"83bdfeb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check-square\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Supply of grounding connectors in various lengths<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\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\t\t<div class=\"elementor-element elementor-element-59a1d76 elementor-widget-mobile__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"59a1d76\" 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<section class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [&amp;:has([data-writing-block])&gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:0ffe97d9-e974-467a-8fad-34473956885f-2\" data-testid=\"conversation-turn-6\" data-scroll-anchor=\"false\" data-turn=\"assistant\"><div class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"><div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"><div class=\"flex max-w-full flex-col gap-4 grow\"><div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"12dd989c-c905-4a7e-bd85-45590ddc4493\" data-message-model-slug=\"gpt-5-5-thinking\" data-turn-start-message=\"true\"><div class=\"flex w-full flex-col gap-1 empty:hidden\"><div class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"><p data-start=\"1370\" data-end=\"1854\">PHILIPP supplied a customized solution consisting of grounding sockets and grounding connectors for the grounding of the PORR system. Type 71 EB F40 grounding sockets were used for embedding in the track support slabs. They consist of a 400 mm long flat steel bar with an M16 threaded sleeve welded to one end and are capped with a stainless steel washer. The entire end section is additionally galvanized to ensure reliable corrosion protection.   <\/p><p data-start=\"1370\" data-end=\"1854\"> <\/p><\/div><section class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [&amp;:has([data-writing-block])&gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69fc3fca-71d0-83eb-a939-0de934d65087-4\" data-testid=\"conversation-turn-16\" data-scroll-anchor=\"false\" data-turn=\"assistant\"><div class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"><div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"><div class=\"flex max-w-full flex-col gap-4 grow\"><div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"3466e58c-0c8a-4b8b-9a18-d51982f0032c\" data-message-model-slug=\"gpt-5-5-thinking\" data-turn-start-message=\"true\"><div class=\"flex w-full flex-col gap-1 empty:hidden\"><div class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"><p data-start=\"1856\" data-end=\"2386\" data-is-last-node=\"\" data-is-only-node=\"\">Type 71 EV K70 grounding connectors were used as external connection elements. The connection is based on the BayEnergie\u00ae copper conductor from Bayerische Kabelwerke AG and features cable lugs on both ends. By supplying connectors in various lengths ranging from 30 to 550 cm, a wide variety of installation scenarios in the tunnel and track sections could be accommodated. The result was a dimensionally accurate, standards-compliant, and permanently functional grounding solution tailored to the specific requirements of PORR\u2019s slab track system.   <\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/section><\/div><\/div><\/div><\/div><\/div><\/section>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-62f6722 e-flex e-con-boxed e-con e-parent\" data-id=\"62f6722\" 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-506b917 e-con-full e-flex e-con e-child\" data-id=\"506b917\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3f540b9 elementor-widget elementor-widget-image\" data-id=\"3f540b9\" 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=\"768\" height=\"1024\" src=\"https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_04-768x1024.jpg\" class=\"attachment-large size-large wp-image-25090\" alt=\"Fully concrete-lined railroad tunnel with tracks, overhead lines, and utility lines along the tunnel wall\" srcset=\"https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_04-768x1024.jpg 768w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_04-225x300.jpg 225w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_04-113x150.jpg 113w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_04-1152x1536.jpg 1152w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_04-1536x2048.jpg 1536w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_04-600x800.jpg 600w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_04-scaled.jpg 1920w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-8fa237d elementor-widget elementor-widget-text-editor\" data-id=\"8fa237d\" 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 class=\"p1\">In total, PORR installed the slab track along a section of approximately 33 km using PHILIPP\u2019s grounding solution.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-242b3c9 e-con-full e-flex e-con e-child\" data-id=\"242b3c9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-825d903 elementor-widget elementor-widget-image\" data-id=\"825d903\" 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=\"768\" height=\"1024\" src=\"https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_02-1-768x1024.jpg\" class=\"attachment-large size-large wp-image-25091\" alt=\"Close-up of a railroad track mounted on a concrete foundation with bolted grounding connectors\" srcset=\"https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_02-1-768x1024.jpg 768w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_02-1-225x300.jpg 225w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_02-1-113x150.jpg 113w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_02-1-1152x1536.jpg 1152w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_02-1-1536x2048.jpg 1536w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_02-1-600x800.jpg 600w, https:\/\/philipp-group.com\/wp-content\/uploads\/2026\/05\/PHILIPP_Referenzprojekt_PORR_Stuttgart21_02-1-scaled.jpg 1920w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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-c8af876 elementor-widget elementor-widget-text-editor\" data-id=\"c8af876\" 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 class=\"p1\">The installed grounding jacks are provided with additional corrosion protection thanks to their galvanized ends.<\/p>\t\t\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\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Grounding Technology for the Slab Track on the Stuttgart 21 Project A custom-designed grounding solution for track slabs on a roughly 33-kilometer section of track. Your project. Our solution. Every project has its own requirements. Our experts will help you find the right technical solution. Request a Solution Now Initial situation and requirements For the [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":25090,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[509,656],"tags":[707],"class_list":["post-25089","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-building-solutions-ref","category-reference-projects","tag-stuttgart-21"],"acf":[],"_links":{"self":[{"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/posts\/25089","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/comments?post=25089"}],"version-history":[{"count":2,"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/posts\/25089\/revisions"}],"predecessor-version":[{"id":25346,"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/posts\/25089\/revisions\/25346"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/media\/25090"}],"wp:attachment":[{"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/media?parent=25089"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/categories?post=25089"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/philipp-group.com\/en\/wp-json\/wp\/v2\/tags?post=25089"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}