infoflyer_lueckenschluss_u5_2018

infoprgu5

Hauptbahnhof

Bundestag Bundestag

Brandenburger Tor Tor

Unter Unter den Linden

Linden

Museumsinsel

Berliner Berliner Rathaus Rathaus

Alexanderplatz

Schillingstraße

Strausberger Platz Platz

Weberwiese

Frankfurter Frankfurter Tor Tor

Samariterstraße

Frankfurter Frankfurter Allee Allee

Magdalenenstraße

Lichtenberg

Friedrichsfelde

Tierpark Tierpark

Biesdorf-Süd

Elsterwerdaer Platz Platz

Wuhletal Wuhletal

Kaulsdorf-Nord

Neue Neue Grottkauer Grottkauer Straße Straße

Cottbusser Cottbusser Platz Platz

Hellersdorf Hellersdorf

Louis-Lewin-Straße

Hönow Hönow

Hauptbahnhof

Bundestag

Brandenburger Tor

Unter den Linden

Museumsinsel

Berliner Rathaus

Alexanderplatz

Schillingstraße

Strausberger Platz

Weberwiese

Frankfurter Tor

Samariterstraße

Frankfurter Allee

Magdalenenstraße

Lichtenberg

Friedrichsfelde

Tierpark

Biesdorf-Süd

Elsterwerdaer Platz

Wuhletal

Kaulsdorf-Nord

Neue Grottkauer Straße

Cottbusser Platz

Hellersdorf

Louis-Lewin-Straße

Hönow

FACTS AND FIGURES

THE NEW U5

HAUPTBAHNHOF

BUNDESTAG

BRANDENBURGER TOR

Gap Closure between

existing U5 and U55 /Length:

Three new

Underground Stations:

Timeline:

2.2 kilometres

Rotes Rathaus (Red City Hall

Station), Museumsinsel (Museum

Island), Unter den Linden

2010 Ground-breaking ceremony

2012 Start of construction

2020 End of construction

Final New U5:

• Total length of U5 after completion of the gap closure: 22 kilometres

• The first fully accessible underground line in Berlin

• New connections for round about 150.000 passengers per day

• Significant reduction of carbon emissions in Berlin-Mitte with up to

3,500 fewer car trips per day

U 2

WEINMEISTERSTR.

SPITTELMARKT

U

U

MUSEUMSINSEL

U 8

ROTES

RATHAUS

KLOSTERSTR.

MÄRKISCHES MUSEUM

U

U

U 2

ALEXANDERPLATZ

U

U 8

JANNOWITZBRÜCKE

HEINRICH-HEINE-STR.

U

U

SCHILLINGSTR.

U

U 5

STRAUSSBERGER PLATZ

U

IMPRINT

Projektrealisierungs GmbH U5

Kommunikation

Friedrichstraße 95

10117 Berlin

For comments:

info@projekt-u5.de/en/

For more information:

www.projekt-u5.de/en

UNTER DEN LINDEN

Text: Projektrealisierungs GmbH U5 (PRG U5)

Front: Römer Wildberger

Layout/Design: Bärlin Team

Pictures and illustrations:

Antonio Reetz-Graudenz,

bünck + fehse, Max Dudler,

PRG U5

Januar 2018

MUSEUMSINSEL

ROTES RATHAUS

ALEXANDERPLATZ

SCHILLINGSTRASSE

STRAUSSBERGER PLATZ

WEBERWIESE

FRANKFURTER TOR

SAMARITERSTRASSE

FRANKFURTER ALLEE

MAGDALENENSTRASSE

LICHTENBERG

FRIEDRICHSFELDE

TIERPARK

BIESDORF-SÜD

ELSTERWERDAER PLATZ

WUHLETAL

KAULSDORF-NORD

NEUE GROTTKAUER STRASSE

COTTBUSSER PLATZ

HELLERSDORF

LOUIS-LEWIN-STRASSE

HÖNOW

The ‘U5 gap closure’ will extend the existing underground line U5

from Alexanderplatz to Brandenburger Tor. There, it will be connected

to the already completed line U55. The lines of U5 and U55 will merge

into one line only: the new U5. The U5 gap closure will provide a

direct connection to the historic city centre, the government district

and the central station for the major residential areas in the east of

Berlin. Additionally those parts of the city that were previously served

by the U55 only (i.e. central train station and government district)

will gain full connection to the underground network.

The U5 gap closure will also make it easy to access a huge number

of the city’s landmarks using just one underground line: from Berlin

TV Tower via Red City Hall, St Mary’s Church, Neptune Fountain,

the historic Nikolaiviertel, the Museum Island and Berlin Cathedral,

the Humboldt Forum, the German Historical Museum and the

Staatsoper Unter den Linden, Humboldt University and the Berlin

State Library to the Brandenburg Gate – and others.

U

HAUPTBAHNHOF

U55

U

BUNDESTAG

U

BRANDENBURGER TOR

MOHRENSTR.

U 2

ORANIENBURGER TOR

U

U

U 6

FRIEDRICHSTR.

U

UNTER DEN LINDEN

FRANZÖSISCHE STR.

U

U

STADTMITTE

HAUS-

U VOGTEIPLATZ

U 6


The tunnel before the start of construction works. September 2017. Calibrating the platforms at Rotes Rathaus Station. August 2017. Looking at the Western excavation pit of Museumsinsel Station. October 2017.

U5 platform and Eastern exit of Unter den Linden Station. November 2017.

THE TUNNEL

Approximately 1.6 kilometres of the 2.2 kilometre connection from

Alexanderplatz to Brandenburger Tor were constructed using a

Tunnel Boring Machine (TBM, pressure balanced hydro-shield).

Two separate tunnel tubes were built for the future underground

line; first the north tunnel tube, followed by the south tunnel tube.

The parts of the TBM were delivered by ships via the river Spree in

early 2014 and lifted into the 20-metre-deep launching shaft at the

Marx-Engels-Forum where the TBM was finally assembled. A TBM

is actually a rolling factory which bores through the subsoil,

creating a tunnel at the same time. ‘Bärlinde’, as the machine was

christened, was 74 metres long, weighed 700 tons and provided a

boring diameter of up to 6.7 metres.

‘Bärlinde’ crossed under the Spree river, the Humboldt Forum and the

Spree canal, and bore its way below the surface and along Unter

den Linden Boulevard to the Brandenburger Tor underground

station. None of this was noticeable at surface level. ‘Bärlinde’

and the entire tunnel crew successfully finished their work at the

end of 2015.

© Reetz-Graudenz © Reetz-Graudenz © Reetz-Graudenz © Reetz-Graudenz

ROTES RATHAUS STATION

The future Rotes Rathaus underground station is located directly

in front of the Red City Hall. The station consists of two levels: the

tracks and platforms for the new U5 at the upper level and sidetracks

at the lower level.

The shaft for the Rotes Rathaus underground station was built

using the cut-and-cover top-down method just like Unter den Linden

station. It is worth mentioning that the cover of the shaft also

serves as roof for the station. Therefore the top of the supporting

columns were completed first; the lower column sections were

built only afterwards. This underground station was designed by

the Berlin architectural firm Collignon Architektur. The idea was

inspired by the vaulted roof of the medieval Berlin town hall

which was rediscovered at the site during archaeological excavations.

Seven centre columns support most of the roof load. The funnel

shaped tops of the columns are reminiscent of the old vaulting.

Combined with the platforms at the outer sides, the concourse

is spacious and airy. In terms of colour, the station features a

modern black and white design.

MUSEUMSINSEL STATION

Museumsinsel underground station runs south of the Palace Bridge,

under the Spree canal between its eastern bank and Crown Princes’

Palace. The station provides direct access to some of the city’s most

important sights and cultural highlights. Due to its proximity to

surrounding buildings and its location under the Spree canal,

construction of the station is a major technical challenge. Two different

construction sites were established, one on each side of the Spree

canal. The platform concourse will be built using the sequential

excavation method. This is done while the soil around the tubes is frozen

solid for structural support and waterproofing. But first, ground freezing

pipes have been drilled around the tunnel tubel. Cold brine flows through

the pipes freezing the ground to its required shape and thickness. .

Museumsinsel underground station was designed by Professor

Max Dudler. He wanted to establish a link to the surrounding buildings

that were designed by the Prussian architect Karl Friedrich Schinkel

(1781-1841). Professor Dudler was inspired by a Schinkel opera stage

design. The vaulted station ceiling designed in dark blue with

countless lights gives the impression of a starry night sky.

UNTER DEN LINDEN STATION

Unter den Linden underground station is the most spacious of the

three stations, designed as an intersection structure for interchanging

between lines U5 and U6. It consists of three levels. The U6

line runs at the top, while the middle level is a concourse where

passengers can change from the platforms of one to the other line.

The U5 line runs on the bottom level. In the first phase the U6 platform

was built by November 2013. Since then, the U6 line has been

operating without any interruption. The strutural works of the U5

level have been finished. Finishings have started in summer 2017.

The shaft for Unter den Linden underground station was built

using the cut-and-cover top-down method. Reinforced concrete

slurry walls served as watertight retaining walls. The bottom plug

was made with deep jet grouting. Unter den Linden underground

station was designed by the architects Ingrid Hentschel and Axel

Oestreich. The architects previously designed Brandenburger Tor

underground station. They wanted to create a strong link between

both stations so that the designs are based on similar concepts

and comprise identical materials.

Length of the new tunnel:

Diameter (internal) of the TBM:

Length of the TBM:

Weight of the TBM:

1,620 metres

5.7 metres

74 metres

700 tonnes

Length:

120 metres

Depth:

up to 16 metres

Platform depth:

7 metres

Size of the column heads: 7 by 9 metres

Length:

180 metres

Depth:

up to 20 metres

Platform depth:

16.5 metres

Number of ceiling lights: around 7.200

Length:

Depth:

U5 platform depth:

U6 platform depth:

152 metres

up to 17 metres

14 metres

5 metres

© Reetz-Graudenz © bünck+fehse © Max Dudler © bünck+fehse

The 2nd cutting wheel of the TBM is being delivered. March 2015. Visualisation of the finished station. Riding the subway beneath a starry night sky. Longitudinal section of the station.

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