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Structurae Newsletter - 11/2014
Newsletter for Structurae, the database for the civil engineer!

Dear <<First Name>> <<Last Name>>,

Did you know that among the 64.000 and some structures in Structurae tunnels represent the third largest category with nearly 7,500 entries after buildings (32,000) and bridges (21,000)? I was quite astonished myself about how much that category had grown when I recently checked. It is indeed quite difficult to document tunnels as obviously most everything happens underground. But it is still one of the most interesting fields of civil engineering though which is why I am dedicating this newsletter to these structures.

Best wishes from Berlin,
Nicolas Janberg
Chief Editor of Structurae

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Tunnels

Here are a few interesting and important examples taken from the more than seven thousand tunnels, caverns and shafts in the Structurae database:

Grand Central Terminal LIRR Terminal (photo: Patrick Cashin, Metropolitan Transportation Authority of the State of New York, CC-BY-SA)
Two caverns will serve as stations for the Long Island Railroad at NYC's Grand Central Terminal starting in 2019.
Channel Tunnel (photo: Jean-Raphaël Legallais)
The Channel Tunnel between Folkestone (UK) and Calais (France) is Europe's longest rail tunnel at 50.45 km.
Tunnel of Eupalinos (photo: Monika Trinkler)
On the Greek island of Samos, Eupalinos had a 1,036 m long tunnel dug by hand to supply water to a city.
European XFEL (photo: Nicolas Janberg)
For the European XFEL particle accelerator in Hamburg 10 smaller tunnels fan out from a main tunnel.
Securing the face with Dramix® steel fibre shotcrete

Report of the Month

Steel Fibre Shotcrete in Tunnelling: State of the Art and Examples

There are many possibilities and reasons for the application of steel fibre concrete in tunnelling, which account for the manifold number of existing uses. The shotcreting construction method has been state of the art for many years, which is reflected in the following report.

Read the full report...

Gotthard Base Tunnel (photo: W. Rebel, CC-BY-SA)
At 57 km the Gotthard Base Tunnel through the Swiss Alps will be the worldwide longest rail tunnel by 2016.
Thames Tunnel (photo: Lars Plougmann, CC-BY-SA)
Marc Isambart Brunel used the first tunnel shield to build the Thames Tunnel in London from 1825 to 1843.
Saint-Martin Canal Tunnel (photo: Guillaume Potignon)
Nearly 2 km of the Saint-Martin Canal in Paris was covered in 1805. Skylights provide natural lighting for boats.
Øresund Tunnel (photo: Väsk, CC-BY 3.0)
The largest immersed tube elements were used in Denmark for the construction of the Ã˜resund Tunnel.
schlaich bergermann und partner

Company of the month

Bekaert GmbH

Bekaert is the world’s largest independent manufacturer of drawn steel wire products and a global technological and market leader in advanced solutions based on metal transformation and coatings. With headquarter in Belgium Bekaert employs about 25,000 people worldwide and serves customer in 120 countries on 5 continents. With the product range of Dramix® Bekaert is global market leader for steel fiber reinforced concrete.

Check out Bekaert's profile on Structurae...

Handbook of Tunnel Engineering, Vol. I and Vol. II, Ernst & Sohn

Recommended Reading

Handbook of Tunnel Engineering, Vol. I and Vol. II

Tunnelling is one of the most interesting but also most challenging tasks for engineers. The two-volume handbook covers the latest state of the associated fields such as geomechanics, structural design, machine and construction process technology and construction management.

Order the set now!

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