{"id":20414,"date":"2026-09-09T10:20:06","date_gmt":"2026-09-09T10:20:06","guid":{"rendered":"https:\/\/tunnelingworld.com\/?p=20414"},"modified":"2026-09-09T10:20:06","modified_gmt":"2026-09-09T10:20:06","slug":"breakthrough-celebrated-on-madrid-line-11-extension","status":"publish","type":"post","link":"https:\/\/tunnelingworld.com\/?p=20414","title":{"rendered":"Breakthrough celebrated on Madrid Line 11 extension"},"content":{"rendered":"<p>Excavation of another section of Madrid\u2019s Metro Line 11 extension has been completed.<\/p>\n<p>TBM Mayrit has broken through at the future Palos de la Frontera station to complete 2.73km of tunnelling.<\/p>\n<p>An Acciona, Dragados and Rover joint venture launched the 9.4m-diameter Herrenknecht EPB machine from Comillas on March 26. It made the first\u00a0<a href=\"https:\/\/www.tunnelsandtunnelling.com\/news\/tunnelling-completed-on-comillas-madrid-rio-section-of-madrid-metro\/?cf-view\">breakthrough<\/a>\u00a0through at Madrid Rio station on June 9.<\/p>\n<p>Excavation of the first 1.116km section to Madrid Rio was completed in 76 days, with 656 rings installed and 77,562m<sup>3\u00a0<\/sup>of spoil excavated.<\/p>\n<p>TBM Mayrit\u00a0resumed work on June 26 to advance the remaining 1.616km to Palos de la Frontera. It excavated this section in 71 days, placing 950 rings and extracting 111,009m<sup>3<\/sup>\u00a0of soil.<\/p>\n<p>During the 2.73km drive from Comillas, 1,606 rings were installed and 188,571m<sup>3\u00a0<\/sup>of spoil extracted.<\/p>\n<p>Over the entire stretch, tunnelling advanced at an average of 18.6m per day but between Madrid Rio and Palos de la Frontera the average daily advance was 22.8m.<\/p>\n<p>A further 679m of tunnel will now be excavated by pick and shovel to complete approximately 60% of tunnelling for the Line 11 extension.<\/p>\n<p>The Acciona, Dragados and Rover joint venture\u2019s contract includes a 6.6km underground metro line extension and the construction of stations at Comillas, Madrid R\u00edo, Palos de la Frontera, Atocha, and Conde de Casal \u2013 the first two being newly built \u2013 as well as seven emergency exits and five ventilation shafts, plus installation of slab track.<\/p>\n<p>The Line 11 extension will create a south-west to north-east axis for Madrid\u2019s metro network.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Excavation of another section of Madrid\u2019s Metro Line 11 extension has been completed. TBM Mayrit has broken through at the future Palos de la Frontera station to complete 2.73km of tunnelling. An Acciona, Dragados and Rover joint venture launched the 9.4m-diameter Herrenknecht EPB machine from Comillas on March 26. It made the first\u00a0breakthrough\u00a0through at Madrid Rio station on June 9. Excavation of the first 1.116km section to Madrid Rio was completed in 76 days, with 656 rings installed and 77,562m3\u00a0of spoil excavated. TBM Mayrit\u00a0resumed work on June 26 to advance the remaining 1.616km to Palos de la Frontera. It excavated [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":20415,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4001],"tags":[5518,5516,5517,5332],"class_list":["post-20414","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-contract-projects","tag-madrid-rio","tag-madrids-metro-line-11","tag-palos-de-la-frontera-station","tag-tbm-mayrit","post--single"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Madrid Metro Line 11 Extension Achieves Tunnel Breakthrough<\/title>\n<meta name=\"description\" content=\"TBM Mayrit has completed 2.73km of tunnelling for Madrid Metro Line 11 extension, reaching the future Palos de la Frontera station.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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