{"id":2376,"date":"2024-07-15T15:46:31","date_gmt":"2024-07-15T13:46:31","guid":{"rendered":"https:\/\/www.systra.com\/italy\/?post_type=projects&#038;p=2376"},"modified":"2024-07-15T16:04:25","modified_gmt":"2024-07-15T14:04:25","slug":"grand-paris-express-line-14-lot-gc04","status":"publish","type":"projects","link":"https:\/\/www.systra.com\/italy\/project\/tunnel-t1-djebel-el-ouahch-collapsed-tunnel-restoration-2-2-2\/","title":{"rendered":"GRAND PARIS EXPRESS, Line 14 lot GC04"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"content-top-project\">\n    <div class=\"content-top-details\">\n        <svg class=\"icon-sprite details-logo\"><use xlink:href=\"#icon_deco_systra_blanc\" \/>\n        <div class=\"title\">Technical details<\/div>\n        \t        <div class=\"single-content\">\n\t            <div class=\"subtitle\">Customer<\/div>\n\t            <div class=\"desc\">R\u00e9gie Autonome des Transports Parisiens (RATP)<\/div>\n\t        <\/div>\n                    <div class=\"single-content\">\n                <div class=\"subtitle\">Dates<\/div>\n                <div class=\"desc\">2018 &#8211; 2021<\/div>\n            <\/div>\n                    <div class=\"single-content\">\n                <div class=\"subtitle\">Missions<\/div>\n                <div class=\"desc\">Detailed design<\/div>\n            <\/div>\n                    <div class=\"single-content\">\n                <div class=\"subtitle\">Localisation<\/div>\n                <div class=\"desc\">France<\/div>\n            <\/div>\n                    <div class=\"single-content\">\n                <div class=\"subtitle\">Perimeter<\/div>\n                <div class=\"desc\">Infrastructure, Building\/Architecture, Finishings, Geology\/Hydrogeology, Geotechnics and foundations, Underground structures\/tunnels, BIM<\/div>\n            <\/div>\n           \n            \n    <\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-dusty-blue-color has-text-color has-link-color wp-elements-1582ca626c89a6a52ea4be865e76ac87\"><strong>TBM tunneling beneath the Orly Airport<\/strong><\/p>\n\n\n\n<p>The southern extension of the metro Line 14 will link the current terminus at Olympiades in the city centre to the Paris Orly international airport. The M14 last section (Lot 4) 4km-long between Pont de Rungis station and Morangis maintenance centre is to be excavated by an EPB machine 8.8m-diameter. Along the alignment, the TBM crosses the airport\u2019s taxiways and the new passenger interchange station. The project includes the construction of 5 connected shafts and 330m cut and cover trench.<\/p>\n\n\n\n<p>We face three main challenges in this work. The first one is the peculiarity of the airport environment, a zone with limited access and strict aeronautical regulations and constraints. The second concerns the geological aspects, the presence of swelling clays imposes a non-linear and time-dependent analysis to predict the ground behaviour. The last one is the tight planning to fulfil the milestone of the 2024 Olympic Games. Following the tender award, the engineering joint venture EGIS-SWS is now in charge of the detailed design of geotechnical and structural works. Our company is committed to the engineering studies and calculations concerning mechanised tunnelling, the construction of the RN7 circular shaft, and the monitoring plan of the construction works. <\/p>\n\n\n\n<p>Through the different analysis, the study of settlement and induced effects on the airport concrete pavement and the surroundings pipelines, viaducts and buildings, becomes one of the interesting engineering challenges that we are approaching by a complete digitised 3D Analysis.<\/p>\n\n\n\n<div style=\"height:52px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"2560\" height=\"1440\" src=\"https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-scaled.jpg\" alt=\"\" class=\"wp-image-2377\" style=\"width:784px;height:auto\" srcset=\"https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-scaled.jpg 2560w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-300x169.jpg 300w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-1024x576.jpg 1024w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-768x432.jpg 768w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-1536x864.jpg 1536w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-2048x1152.jpg 2048w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-286x160.jpg 286w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-474x266.jpg 474w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-1700x956.jpg 1700w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-1352x761.jpg 1352w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-800x450.jpg 800w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-180x101.jpg 180w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-153x86.jpg 153w, https:\/\/www.systra.com\/italy\/wp-content\/uploads\/sites\/5\/2024\/07\/grand-paris-express-line-14-lot-1-1-230x129.jpg 230w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure>\n\n\n\n<div style=\"height:52px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div style=\"height:52px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div style=\"height:52px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div>\n","protected":false},"author":103,"featured_media":2377,"parent":0,"template":"","type-market":[50,46],"project-market":[],"project-service":[],"project-location":[],"type-service":[65,60],"type-solution":[],"class_list":["post-2376","projects","type-projects","status-publish","has-post-thumbnail","hentry","type-market-tunneling-underground","type-market-urban-mobility","type-service-bim-modelling","type-service-design"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>GRAND PARIS EXPRESS, Line 14 lot GC04 - Italy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GRAND PARIS EXPRESS, Line 14 lot GC04\" \/>\n<meta property=\"og:description\" content=\"TBM tunneling beneath the Orly Airport The southern extension of the metro Line 14 will link the current terminus at Olympiades in the city centre to the Paris Orly international airport. 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