Germany

Boßler Tunnel: TBM commenced Building the second Tunnel Tube

Käthchen, the tunnel boring machine (TBM), which the DB Projekt Stuttgart–Ulm GmbH is using to drive the Boßler Tunnel on the new Wendlingen–Ulm rail route, embarked on its second shield passage on April 18, 2017. The 11.39 m diameter cutting wheel began tackling the roughly 8800 m long west bore from the Aichelberg portal. In similar vein to the parallel running east tube, which was accomplished in November 2016, the 110 m long and 2480 t heavy tunnelling machine will install some 4400 tunnel rings comprising roughly 30 800 precast concrete segments. “Together with the contractor we had the...

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Germany

Boßler Tunnel: TBM commenced building the second Tunnel Tube

Käthchen, the tunnel boring machine (TBM), which the DB Projekt Stuttgart–Ulm GmbH is using to drive the Boßler Tunnel on the new Wendlingen–Ulm rail route, embarked on its second shield passage...

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Issue 08/2014 Germany?/?New Wendlingen–Ulm Route

Symbolic Starting Shot for the mechanized Drive of the Boßler Tunnel

The christening of the “Käthchen” tunnel boring machine (TBM) on November 8, 2014, marked the symbolic starting shot for driving operations on the Boßler Tunnel at the Aichelberg portal. From...

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Issue 04/2015 Germany

Boßler Tunnel: 1000 m excavated, mechanized Drive scheduled to be extended

The DB Projekt Stuttgart-Ulm GmbH is forging ahead with the construction of the Boßler Tunnel as planned. It is the longest tunnel on the new Wendlingen-Ulm rail route with a length of 8806 m. The...

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Issue 03/2015 Germany

TBM at the Boßler Tunnel starts Drive and Ring Construction

The TBM named “Kätchchen” used to drive the Boßler Tunnel began its work in mid-April, 2015. The machine built by Herrenknecht first tackled the eastern bore, which will one day accommodate the...

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An Overview of the Tunnels on the new Wendlingen-Ulm Railway Line

Half of the 60 km long new rail route between Wendlingen and Ulm runs through tunnels. This report provides an overview of the line and its plan approval sections and describes the special challenges...

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