2430 x 2430 px | 41,1 x 41,1 cm | 16,2 x 16,2 inches | 150dpi
Data acquisizione:
21 giugno 2003
Ubicazione:
Medway Crossing, Kent, UK.
Altre informazioni:
Questa immagine potrebbe avere delle imperfezioni perché è storica o di reportage.
The main span for the Channel Tunnel Rail Link viaduct across the Medway estuary was constructed as two balanced cantilevers arising from two piers in the river. This shadow picture was taken as these spans approached each other at the mid-point just prior to being joined together. This viaduct, near Rochester in Kent is a uniquely styled bridge. The 1.25 km long, 25-span pre-stressed concrete box girder viaduct has become a symbol for the new railway and the 152 m main span has extended the limit for high-speed train crossings. It was required to sit comfortably in its river environment and together with its two companion road bridges for the M2 motorway. The viaduct’s design was approved by the Royal Fine Arts Commission and received the Concrete Society Award for Civil Engineering in 2002. Building the bridge presented some complex engineering challenges. Concrete sections of rail-bed 40 m in length and weighing 1000 tonnes were assembled sequentially in a launch area on either side of the river, then gently slid on stainless steel bearings to be fixed on top of piers spanning the river banks. Pairs of 900-tonne capacity hydraulic jacks were used pushed the sections into place. The £5.2 billion Channel Tunnel Rail Link (now High Speed One) was built between 1998-2007 and partly funded by the European Union, it forms a section of the Trans European Rail Network. It is basically a French-style high-speed rail line linking London with the Channel Tunnel, the Eurostar trains were developed on proven technology from the French TGV high-speed system. Stations on the CTRL are the existing Ashford International and new stations at Ebbsfleet and Stratford. The line ends at the rebuilt St. Pancras.
