ESP +34 944 240 835 Gran vía 53, 3º Dcha - 48011 Bilbao HOME ABOUT US EXPERIENCE ACTIVITY FACILITIES MACHINERY CONTACT DOWNLOADS Experience DATE All 2021 2020 2019 2015 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 LOCATION All Aragon Asturias Balearics Canarias Cantabria Catalonia Galicia Navarra Basque Country Valencia Colombia TYPE OF WORKS All Caverns Conservation and maintenance Galleries Highway Hydraulics Mining Railway Tunnels Underground Wells LIST MAP Clean-up and maintenance works in the galleries of the Bodovalle mine, in Biscay The Bodovalle mine was the largest open-pit siderite mine in the Biscayan mining basin. It was exploited in open pit until 1885. From that date, the mineral extraction was carried […] Structural reinforcement and widening of the clearance gauge in "El Callejo" and "El Arroyo" tunnels of the metric gauge Ferrol-Bilbao line, T.M. Zalla (Biscay) “El Callejo” tunnel is located between the km 621 + 192 and 621 + 318.1, with a total length of 126.10 meters. “El Arroyo” tunnel is located between the km […] Reinforcement of tunnel 1 Genovés on 342 Xátiva-Alcoi line (Valencian Community) Genovés Tunnel 1 has a length of 250 m, starting km 4 + 188 and ending km 4 + 438 with straight geometry. The tunnel is single track, with a […] Emergency due to serious damage to the lining of the Toses tunnel. Ripoll - Puigcerdá line The Toses tunnel has a length of 3,904 m and is located between PP.KK 29+745 and 33+649. The repair areas total 947 meters where the following actions have been carried […] Reparations of inlet and outlet in Zankoeta II Tunnel The actions carried out in the Zankoeta II Tunnel consisted of: Filling of the track area to a level higher than the current tunnel key to stabilize the slope […] Improvement works on slopes of the Bilbao-Donostia Line. Lot 1: Deba Station at km 72 + 450 The works consisted of the Conditioning and improvement of stability on the slopes between the Deba and Zumaia stations of the Bilbao-Donosti Line, for this, the following actions were carried […] A-27. Tarragona Mont-Blanc. Tramo: variante de Valls - Montblanc. Túnel Lilla En el tramo Variante de Valls – Montblanc de la autovía A-27 (Tarragona – Montblanc) situado en la provincia de Tarragona, se ha ejecutado un túnel de dos tubos gemelos […] Construction project for the infrastructure of section 9B. Bolintxu-Venta Alta, stage I of the South Metropolitan By-pass It is a double tunnel, with three lanes on Axis 1 and three lanes on Axis 2. The tunnel as a total length of 524,833 m on Axis 1 and […] Security works at Arditurri gallery The works that were carried out in the Arditurri mine were the following: Security work at a point in the mining gallery. Triple twist mesh placement. Placement of mini prisms […] 1 2 3 … 6 Next » Safety, quality and protection of the environment for commitment to and satisfaction of our customers. BROWSING MENU Home About us Experience Activity Civil works Roads Railways Metro–Urban tunnel Hydraulics Underground works Tunnels Wells Caverns Galleries Mining Conservation and maintenance Facilities Machinery Contact Downloads ESP CONTACT INFORMATION Gran vía 53, 3º Dcha – 48011 Bilbao +34 944 240 835 info@nortunel.com Copyright 2020 Nortúnel, All rights reserved. | Condition of use This website uses its own and third-party analysis cookies to gather information in order to improve our services, as well as for browsing analysis. If you continue to browse, you accept their installation. The user can configure their browser and, where they choose, can prevent them from being installed on their hard drive, although they must take into account that this may create browsing difficulties for this webpage.AcceptConfiguration guide