{"id":4984,"date":"2022-05-31T17:15:10","date_gmt":"2022-05-31T15:15:10","guid":{"rendered":"https:\/\/www.systra.com\/france\/la-ligne-12-du-metro-de-paris-rejoint-aubervilliers\/"},"modified":"2026-04-07T15:47:24","modified_gmt":"2026-04-07T13:47:24","slug":"la-ligne-12-du-metro-de-paris-rejoint-aubervilliers","status":"publish","type":"post","link":"https:\/\/www.systra.com\/france\/news\/la-ligne-12-du-metro-de-paris-rejoint-aubervilliers\/","title":{"rendered":"La ligne 12 du m\u00e9tro de Paris rejoint Aubervilliers"},"content":{"rendered":"\n<p>Apr\u00e8s l\u2019arriv\u00e9e de la ligne 4 \u00e0 Bagneux en f\u00e9vrier dernier, le m\u00e9tro parisien poursuit son extension pour mieux se connecter au Grand Paris&nbsp;: la ligne 12 relie d\u00e9sormais la Mairie d\u2019Issy \u00e0 la Mairie d\u2019Aubervilliers et dessert deux nouvelles stations, Aim\u00e9 C\u00e9saire et Mairie d\u2019Aubervilliers \u2013 Plaine des Vertus, inaugur\u00e9es le 31 mai. <\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.systra.com\/wp-content\/uploads\/2022\/05\/photogroupe-1024x768.jpg\" alt=\"\" class=\"wp-image-7348527\" width=\"546\" height=\"410\" \/><\/figure><\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Ces acc\u00e8s permettent \u00e0 plus de 330 000 riverains de rejoindre Saint-Lazare en 20 minutes, avec une fr\u00e9quence d\u2019un m\u00e9tro toutes les 130 secondes en heure de pointe. La RATP pr\u00e9voit d\u2019accueillir plus de 40&nbsp;000 voyageurs suppl\u00e9mentaires par jour. &nbsp;\u00c0 terme, le nouveau terminus sera en correspondance avec la ligne 15 du Grand Paris Express.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>C\u2019est une histoire de 15 ans qui s\u2019ach\u00e8ve pour les \u00e9quipes de SYSTRA. Elle avait d\u00e9but\u00e9 en 2007, pour le premier prolongement de la ligne 12 vers la station Front Populaire, inaugur\u00e9e en d\u00e9cembre 2012. La ligne, v\u00e9ritable colonne vert\u00e9brale du nord au sud de Paris, totalise d\u00e9sormais plus de 15 km et 31 stations.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Les expertises de SYSTRA au c\u0153ur du projet<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>En tant que ma\u00eetre d\u2019\u0153uvre du projet de prolongement de la ligne 12, SYSTRA a mobilis\u00e9 ses expertises en mati\u00e8re de transport urbain et d\u2019ouvrages souterrains. Nos \u00e9quipes ont d\u2019abord r\u00e9alis\u00e9 l\u2019ensemble des \u00e9tudes de conception avant de superviser la r\u00e9alisation des deux nouvelles stations ainsi que de l\u2019ensemble de l\u2019emprise chantier.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-style-bg-pale-blue is-layout-flow wp-block-quote-is-layout-flow\"><p><em>Le prolongement de la ligne 12 est un projet complexe par ses d\u00e9fis techniques li\u00e9s \u00e0 sa r\u00e9alisation. Il nous a incit\u00e9s \u00e0 innover et repenser nos m\u00e9thodes de travail, dans un tissu urbain extr\u00eamement dense et en essayant de limiter au maximum les nuisances pour les riverains. \u00c0 la cl\u00e9, un prolongement structurant au c\u0153ur du Grand Paris, deux stations, dont la plus vaste du m\u00e9tro de la capitale, et l\u2019utilisation de techniques in\u00e9dites. <\/em><\/p><cite><strong>Guillaume Chapponnais, directeur SYSTRA du projet de ligne 12<\/strong><\/cite><\/blockquote>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Un bouclier de glace pour contenir les eaux souterraines<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Le projet a notamment \u00e9t\u00e9 l\u2019occasion de r\u00e9aliser une premi\u00e8re mondiale&nbsp;: la cong\u00e9lation des sols \u00e0 l\u2019azote liquide. En effet, la nature des sols, sablonneux et humides du fait d\u2019une nappe phr\u00e9atique en faible profondeur affleurant \u00e0 4 m\u00e8tres, nous a conduits \u00e0 utiliser cette technique. Celle-ci, qui reprend le principe invent\u00e9 par Fulgence Bienven\u00fce en 1909 pour permettre \u00e0 la ligne 4 de traverser la Seine, renforce la tenue m\u00e9canique et l\u2019imperm\u00e9abilit\u00e9 des terrains humides pendant les travaux.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.systra.com\/wp-content\/uploads\/2022\/05\/tunnel-1024x768.jpg\" alt=\"\" class=\"wp-image-7348639\" width=\"437\" height=\"327\" \/><\/figure><\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Les tympans des stations, qui font la jonction entre le tunnel et les quais et constituent les points sensibles d\u2019infiltration, ont donc \u00e9t\u00e9 congel\u00e9s par -35\u00b0C puis par -196\u00b0C en cycle ferm\u00e9, afin d\u2019obtenir un bouclier de terre gel\u00e9e sur 1,80 m d\u2019\u00e9paisseur.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>D\u2019autres prouesses ont \u00e9t\u00e9 accomplies telles que la r\u00e9alisation des deux stations apr\u00e8s d\u00e9molition du tunnel pr\u00e9c\u00e9demment r\u00e9alis\u00e9.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Plaine des Vertus, l\u2019une des plus grandes stations de m\u00e9tro en France<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Le nouveau terminus de la Mairie d\u2019Aubervilliers est une des plus grandes stations de m\u00e9tro en France. En plus de ses quais, elle abrite le nouvel atelier de maintenance de la ligne et deux puits d\u2019\u00e9vacuation annexes, portant \u00e0 280 m\u00e8tres la longueur totale de la station. Par comparaison, les stations de la ligne 14, parmi les plus grandes de France, poss\u00e8dent des quais de 120 m\u00e8tres\u2026<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.systra.com\/wp-content\/uploads\/2022\/05\/mairie-daubervilliers.jpg\" alt=\"\" class=\"wp-image-7348710\" width=\"346\" height=\"519\" \/><\/figure><\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Cette station a n\u00e9cessit\u00e9 la r\u00e9alisation de plus de 25&nbsp;000 m\u00b2 de parois moul\u00e9es, d\u2019une dalle, puis le creusement de son volume int\u00e9rieur gr\u00e2ce \u00e0 une m\u00e9thode appel\u00e9e \u00ab&nbsp;terrassement en taupe&nbsp;\u00bb, pour un volume de 125&nbsp;000 m<sup>3<\/sup> excav\u00e9. Le choix de cette m\u00e9thode a notamment permis de garantir les circulations pi\u00e9tonnes et routi\u00e8res en surface, mais aussi de maintenir les sols en minimisant l\u2019impact sur le b\u00e2ti existant, tout en assurant l\u2019\u00e9tanch\u00e9it\u00e9 de la station avec une profondeur d\u2019ancrage jusqu\u2019\u00e0 40 m\u00e8tres, sous la nappe phr\u00e9atique.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.systra.com\/wp-content\/uploads\/2022\/05\/station-1024x682.jpg\" alt=\"\" class=\"wp-image-7348746\" width=\"562\" height=\"374\" \/><\/figure><\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Enfin, ce nouveau terminus est faiblement \u00e9nergivore puisqu\u2019il repose sur un captage par g\u00e9othermie int\u00e9gr\u00e9 aux panneaux des parois moul\u00e9es.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Des impacts chantier minimis\u00e9s<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Pour r\u00e9duire le plus possible l\u2019impact du chantier, nos \u00e9quipes ont livr\u00e9 les mat\u00e9riaux et \u00e9vacu\u00e9 les d\u00e9blais issus des terrassements par voie fluviale, via le canal Saint-Denis, r\u00e9duisant d\u2019autant les mouvements de camions sur les routes. Le r\u00e9seau routier \u00e9tait lui pr\u00e9serv\u00e9 par la construction d\u2019un autopont provisoire, pendant le creusement de la station Aim\u00e9 C\u00e9saire.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-style-bg-pale-blue is-layout-flow wp-block-quote-is-layout-flow\"><p><em>Nous avons effectu\u00e9 des travaux en plein centre-ville d\u2019Aubervilliers. C\u2019\u00e9tait un d\u00e9fi, surtout les jours de march\u00e9, mais c\u2019\u00e9tait aussi un moteur pour transformer nos m\u00e9thodes. L\u2019acheminement par voie fluviale a par exemple permis d\u2019\u00e9viter 50&nbsp;000 rotations de poids lourds sur les routes. Je remercie toutes nos \u00e9quipes mobilis\u00e9es sur ce projet, y compris pour communiquer avec les riverains, dont la patience est aujourd\u2019hui r\u00e9compens\u00e9e.&nbsp;<\/em><\/p><cite><strong>Franck Coulaud<\/strong>, directeur SYSTRA du projet de 2016 \u00e0 2019.<\/cite><\/blockquote>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>En l\u2019espace de seize mois, c\u2019est le troisi\u00e8me prolongement majeur de m\u00e9tro inaugur\u00e9 par SYSTRA en \u00cele-de-France, apr\u00e8s celui de la ligne 4 \u00e0 Bagneux et celui de la ligne 14 \u00e0 Saint-Ouen. Les prochaines extensions du r\u00e9seau existant sont attendues sur la ligne 14 au sud et la ligne 11 \u00e0 l\u2019est de Paris.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Rep\u00e8res \u2013 Prolongement de la ligne 12 du m\u00e9tro de Paris<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>1,7 km de tunnel<\/li><li>2 stations&nbsp;:<ul><li>Aim\u00e9 C\u00e9saire&nbsp;: 83 m de longueur, plus de 15&nbsp;000 voyageurs attendus<\/li><\/ul><ul><li>Mairie d\u2019Aubervilliers&nbsp;\u2013 Plaine des Vertus : 220 m de longueur + 60 m d\u2019atelier, plus de 25&nbsp;000 voyageurs attendus<\/li><\/ul><\/li><li>1 centre de d\u00e9pannage int\u00e9gr\u00e9<\/li><li>2 puits d\u2019acc\u00e8s pompiers (Waldeck Rousseau et Valmy)<\/li><li>6 000 m\u00b2 de surface cumul\u00e9e<\/li><li>333&nbsp;500 habitants desservis<\/li><li>153&nbsp;900 emplois desservis<\/li><\/ul>\n\n\n\n<p><a id=\"_msocom_1\"><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Apr\u00e8s l\u2019arriv\u00e9e de la ligne 4 \u00e0 Bagneux en f\u00e9vrier dernier, le m\u00e9tro parisien poursuit son extension pour mieux se connecter au Grand Paris&nbsp;: la ligne 12 relie d\u00e9sormais la Mairie d\u2019Issy \u00e0 la Mairie d\u2019Aubervilliers et dessert deux nouvelles stations, Aim\u00e9 C\u00e9saire et Mairie d\u2019Aubervilliers \u2013 Plaine des Vertus, inaugur\u00e9es le 31 mai. 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