Experience – Rail
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T5 Rail and Road Tunnels, Heathrow Airport, UK – Construction of a new railway between Dalston Junction and Croydon for Transport for London . Scope involves railway works including track, signalling, telecommunications and electrification, and major civil engineering works. The project also included the construction of two large bridges, new stations and depot. |
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Channel Tunnel Rail Link King’s Cross Station, UK – Construction of the phase II complex tunnelling works, plus the new Northern Ticket Hall. The works have significantly increased the capacity of this heavily used London station. |
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King’s Cross Western Ticket Hall, UK – Formation of a new ticket hall and station concourse to serve the Metropolitan and Circle lines. Works included major civil engineering and building within a live station environment, which was also Grade I listed. |
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Euston Area Remodelling, London, UK – This phase 1 stage of the West Coast Main Line modernisation included a complete remodelling of the railway infrastructure from Euston Station to Primrose Hill over a 2.8km stretch. The scheme included renewal of power supplies, new signals, a new signalling centre and all the associated trackworks. |
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Liefkenshoek rail link, Antwerp – Design and construction of a dual railway infrasture 16.2 km long. The project includes an excavated railway zone (4.76 km),infrastructure in open and covered trenches (4.27 km), the re-opening of the exiting (but never used) Beveren tunnel (1.2 km) and two tunnels, 5.97 km in length each, bored through the sand-and-clay subsoil under the North Sea channel and the Escault river. Also included are eletromechanical installations in the bored tunnels, including smoke-control and fire-protection systems. |
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Stratford City Developments – Scope includes the modification of two existing under bridges, two new adjacent footbridges and one new 85-metre span single spine bowstring arch bridge. Associated works include retaining walls, new footpaths and cycle ways and drainage works, including pipe jacks and surfacing works. A new town centre link bridge was also constructed and made history when it was pushed over 11 live Network Rail, London Underground Limited and Docklands Light Railway rail lines at Stratford Station. |
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Lainzer Tunnel LT 31, Vienna, Austria – Construction of the 3.6km inner-city lot LT 31 mainly in soft ground (sediments, sands, silt, clay) with overburden in the range of 6 m to 26 m. Two sidewall-drifts (NATM) were started from each of the two starting and mucking shafts. In addition to the 129 m2 double-track railway tunnel, four emergency exits had to be constructed. The soft ground has limited bearing capacity. With respect to live railroad, buildings and service structures above the tunnel a stiff support was implemented to control ground loss at the face, to avoid face or roof instability and finally to minimize settlement at the surface. |
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Mitzholz Tunnel, Switzerland – Construction of a triple tube railway tunnel, bored using a drill and blast method. Average tube section 65m2.Total length of the three tubes: 26,500m. |
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Docklands Light Railway Woolwich Station Extension, UK – The construction of 2.5km of twin track deep tunnels beneath the River Thames and a new terminus station in a deep box adjacent to the existing North Kent Line station at Woolwich Arsenal. Scheme challenges included complex technical requirements, plus extensive local community interfaces. The project was completed eight weeks ahead of schedule. |
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North Downs Tunnel (CTRL 410) and Channel Tunnel, UK – Completion of a 3km long single-tube tunnel completed with the New Austrian Tunnelling Method (NATM) and earthworks for the construction of a 3.8km railway platform and three road bridges. The project also included turnkey construction of three bored tunnels totalling 150km (54km under the sea), including two single track railway and a service tunnel. |
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Hallandsas tunnels – Design and Build contract for two open shield (hard rock) / slurry pressure TBM bored railway tunnels between Skottorp and Forslov, South-West Sweden - Tunnel cumulated length: 11,239 m, inner diameter: 9.04 m. |
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Channel Tunnel Rail Link Contract 440, Kent, UK – Construction of 16km of embankments and cuttings, 22 bridges, 2 cut and cover tunnels and including 130 separate service and utility diversions between Ashford and Folkstone. The project also involved construction of 14 retaining walls and a 320m long viaduct across the Grange Alders Valley. |
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Pannerdensch Canal Tunnel, Arnhem – Design and construction of a 2 x 1,615 m long twin-bore rail tunnel with slurry pressure Herrenknecht TBM, bored Ø 9.805 m - final inner Ø 8.65 m - Portal and access ramps of 550 m and 450 m long respectively. |
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Modernisation "Alte Mainzer Tunnel", Mainz, Germany – Reinstatement and enlargement (45m2 to 126m2 - using bolt-grouting: radial comprehensive grouting - BeMo value engineering proposal) of the existing very shallow double-track railway tunnels (662m "Tunnel Mainz Hbf" and 246m "Tunnel Mainz South") running 4m to 20m underneath existing structures, e.g. main roads, buildings, ancient walls (Detailed primary and secondary lining Tunnel-Design by BeMo,). The "Alte Mainzer Tunnel", situated in the city centre of Mainz, were built in the late nineteenth century and opened in 1883. To meet today's standards, the two tunnels had to be enlarged with a double-pass waterproof lining and to accommodate walkways and a emergency fire line. The geology predominantly comprises silt and clay (tertiary sequence). |