Czech Republic

Railway Tunnel between Rokycany and Pilsen

A convertible Herrenknecht multi-mode tunnel boring machine
(Ø 9,890 mm) was used to modernize the Czech railway line between Rokycany and Pilsen. The machine excavated two tunnels, each about 4 km long. Because of the heterogeneous soil conditions, the TBM initially worked in EPB mode, then on the last third in open single-shield mode.

With the expansion of the railway line as a high-speed rail link, the Czech railway network is being modernized. The line in the western part of the Czech Republic is part of the railway corridor linking Pilsen to Prague and thus to the European railway network. Over a distance of 4150 m it consists of two single-track tunnel tubes. The tubes were built by the Czech contractor Metrostav. For the first time in Eastern Europe, a convertible multi-mode TBM, specifically designed and manufactured by Herrenknecht at its Schwanau plant, was used. The multi-mode TBM built two-thirds of the two tunnels through quartzite shale stone and clay soils in closed EPB mode with screw conveyor muck removal. On the last 1.1 km of each route the machine S-799 had to penetrate hard spilite rock, for which it was converted inside the tunnel to open single-shield mode with belt conveyor removal within two weeks.

Related articles:

Stuttgart 21: Construction of the Filder Tunnel has commenced

Germany. A new phase has begun in the construction of Stuttgart's underground railway station as political and business representatives celebrated commencement of construction of the Filder Tunnel on...

more
02/2015

Herrenknecht

On the occasion of the World Tunnel Congress Herrenknecht presents itself as the pioneer in mechanized tunnelling. Using Herrenknecht Tunnelling Systems, modern tunnels worldwide are created safe and...

more
06/2014 Germany

Stuttgart 21: Construction of the Filder Tunnel has commenced

In July a new phase has begun in the construction of Stuttgart‘s underground railway station as political and business representatives celebrated commencement of construction of the Filder Tunnel....

more
02/2014

Herrenknecht AG

On the occasion of the World Tunnel Congress Herrenknecht is presenting state-of-the-art tunnelling technology with emphasis on the Latin American region. To cope with the changing ground conditions...

more
08/2015 Germany

First Tunnel Boring Machine approved for Rastatt Tunnel

The first of two tunnel boring machines (TBMs) for the Rastatt Tunnel by manufacturer Herrenknecht was approved by the customer, the Tunnel Rastatt JV, on December 8, 2015 at the factory in Schwanau....

more