Construction—EMEA—Germany—Excavations
Closing a Gap with DYWIDAG Strand Anchors and GEWI ® Bar Anchors:
The B10 Rosenstein Tunnel in Stuttgart
The B10 Rosenstein Tunnel in Stuttgart, Germany is part of a road construction project that will close a gap in the development
of the B10 Federal Road between the town of Zuffenhausen and Stuttgart East. Thanks to the construction of the tunnel,
Prague Street can be reduced from 4 to 2 lanes, which will significantly reduce traffic congestion in the affected districts and
will allow the creation of new green space.
Photos reprinted courtesy of Kurt Motz e.K., Germany
With a total length of approximately 1,300m,
the new road tunnel passes below Rosenstein
Park and parts of the Wilhelma Zoological and
Botanical Gardens. After tunnel completion,
which is scheduled for 2020, traffic will be run
through both tunnel tubes on two lanes in each
direction.
At its deepest point, the tunnel is located
20m beneath Rosenstein Park. 750m of
the two tunnel tubes are advanced from the
Neckar River in the direction of Prague Street
using the underground method. The tunnel
is accessed via an approximately 40m long
approach adit. Thanks to the underground
method, interferences with Rosenstein Park
and Wilhelma Zoo can be avoided.
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The open cut method is only used for the areas
that will connect the tunnel to Prague and
Neckartal Streets. The excavation at Prague
Street accommodates both tunnel tubes as
well as the new operational building and was
therefore excavated to a depth of up to 18m.
To stabilize this excavation, DSI supplied
532 temporary Type 3-0.6" and 4-0.6"
DYWIDAG Strand Anchors with a total length
of 9,110m. The DYWIDAG Strand Anchors
were installed in the excavation walls in lengths
of 10 to 22m. Furthermore, 566 16 to 40mm Ø
GEWI ® Bar Anchors with a total length of
4,367m were used. The GEWI ® Bar Anchors
were installed in individual lengths from 2 to
14m.
Owner
Regional Capital Stuttgart, Germany
Contractor
Wolff & Müller Spezialbau GmbH & Co. KG,
Germany
Subcontractor
Kurt Motz e.K., Germany
Engineering
WBI Prof. Dr.-Ing. W . Wittke Beratende
Ingenieure für Grundbau und Felsbau GmbH,
Boll und Partner, Beratende Ingenieure VBI and
Hyder Consulting GmbH, all of them Germany
Architects
wulf architekten GmbH and Kaag und Schwarz
Architekten, both Germany
DSI Unit
DYWIDAG-Systems International GmbH,
BU Geotechnics, Germany
DSI Scope
Development, production, supply
DYWIDAG Products
532 temporary, 10 - 22m long Type 3-0.6" and 4-0.6"
DYWIDAG Strand Anchors, 566 16 to 40mm Ø, 2 - 14m
long GEWI ® Bar Anchors