Metro Sofia, extension, Bulgaria

Client Municipality of Sofia, Bulgaria Contractor Taisei Corporation, branch Bulgaria Construction period September 2008 – August 2009 Structures Description: construction and reinstatement of subway Serdika station, construction and architectural works Executed works: application of stamped concrete granite and marble cladding renovation of tiles and marble cladding of the staircase to Bulbank building of shops glass…

Tunnel Oshlid, Iceland

Client Vegegardin, Iceland Contractor Joint-Venture ÓSAFL (Company: IPC, Iceland + Marti Contractors Ltd., Switzerland) Construction period August 2008 – August 2009 Objects description: tunnel is a part of the road Óshlið No. 61 between the villages Bolungarvík and Ísafjörður in district Westfjarðar Construction technology:  Excavation works were carried out by using drilling and blasting works,…

Power station Sisimiut, Greenland

Client Greenland Energy Authority , Greenland Superior Contractor ÍSTAK Greenland, Greenland Construction period October 2007 – October 2009 Objects description: access service tunnel to the underground powerhouse underground powerhouse tailrace tunnel main headrace tunnel Construction technology: All underground galleries were excavated by drilling and blasting works, NMT (Norwegian Tunnelling Method). Executed works: driving of access…

Tunnel Bôrik, Slovakia

Client Národná diaľničná spoločnosť,a.s. Bratislava Superior Contractor “IS – Marti Contractors” Consortium Construction period April 2006 – December 2009 Objects description: east portal section west portal section right tunnel tube left tunnel tube escape galleries roadway and pavements in tunnel waste waters discharge drainage waters discharge Construction technology: Tunnel was driven by NATM – (New…

Metro Sofia, Bulgaria

Client Municipality of Sofia, Bulgaria Main Contractor Taisei Corporation, branch Bulgaria Construction period September 2008 – December 2009 Objects description: tunnel boxes rotation shaft connecting with tunnel boxes reinstatement of subway Construction technology: Mechanical excavation, open cut excavation. Executed works: underpinning of metro foundation tunnel boxes concreting cut and cover tunnel – west tunnel tube…

Power station Glendoe Hydro Scheme, Scotland

Client Scottish and Southern Energy plc Superior Contractor Hochtief Glendoe Joint Venture Construction period April 2006 – April 2008 Objects description: main access tunnel tailrace tunnel adit tunnel underground powerhouse headrace tunnels Construction technology: Tunnel was driven by using drilling and blasting works, by NMT (Norwegian Tunnelling Method). Executed works: driving of the main access…

Tunnel Horelica, Slovakia

Client Slovenská správa ciest, Investorský útvar Žilina Construction period September 2003 – May 2004 Structures description: Exploration gallery – escape corridor of the site Motorway I/11 Čadca – town bypass, part Bukov – Horelica Completed structures: SO 206-12 Exploration gallery – escape corridor Exploration gallery – escape corridor with main cross-section profile of 13 m2,…

Power station Kárahjúkar II., Iceland

Client Landsvirkjun (National Power Company), Iceland Superior Contractor IMPREGILO S.p.A. Iceland Branch Construction period March 2005 – June 2006 Objects description: company executed excavation works at construction of feeders from dam to the underground hydroelectric power station Kárahjúkar Construction technology: Tunnels were excavated by using drilling and blasting works, by NMT – (Norwegian Tunnelling Method).…

Power station Kárahjúkar I., Iceland

Client Landsvirkjun (National Power Company), Iceland Superior Contractor FOSSKRAFT J.V., Reykjavík, Iceland Construction period November 2003 – December 2004 Objects description: Kárahjúkar Powerstation KAR 15 with service capacity 690 MW company realized excavation works at construction of underground objects of the underground powerhouse and associated galleries Construction technology: Excavation works were realized by drilling and…