Infrastructure

Underground construction / geotechnics

We have many years of experience in new construction, restorations, preservations, repurposing, tunnels, caverns, shafts and mining tunnels for roads, railways, power plants, industry and infrastructure.

We offer the following services:

Total and project management
Feasibility and concept studies
Preliminary and detailed projects, construction projects, tenders, execution projects
Local site management, overall construction management
Testing engineer and expert mandates
Construction logistics (tire and track-dependent)
Interval planning
Material management concepts

We also offer interdisciplinary, tunnel-specific services in coordination with our in-house specialists:

Tunnel safety
RAMS analyses
Fire protection concepts
Evacuation simulations and rescue concepts

Contact

Emch+Berger AG Bern

Bern, Biel/Bienne, Brig, Spiez, Fribourg/Freiburg, Kopenhagen (DK), München (DE)

Dr. Stefan Wachter

Dr.-Ing. Dipl. Bauingenieur TU

Bereichsleiter Untertagbau, Geotechnik / Mitglied der erweiterten GL

Emch+Berger AG Bern

+41 58 451 64 25

+41 78 944 07 65

E-mail

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Ulrich Straumann

Dipl. Bauingenieur HTL/ETH

Senior Projektleiter

Emch+Berger AG Bern

+41 58 451 64 18

+41 79 507 37 63

E-mail

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Emch+Berger SA Lausanne

Lausanne, Genève, Sion

Claude Risch

Ingénieur en génie civil dipl. EPFL

Membre du Conseil d'Administration - Membre de la Direction - Chef de projet

Emch+Berger SA Lausanne

058 451 75 69

E-mail

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Emch+Berger WSB AG

Emmenbrücke, Cham, Hochdorf, Kriens, Sarnen

Martin Scherer

Dipl. Bauingenieur ETH/SIA

Vorsitzender der Geschäftsleitung

Emch+Berger WSB AG

+41 58 451 70 01

+41 79 606 62 27

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References

All References

2003

2008

Gotthard Base Tunnel, Logistics for the installation of railway technology

The Gotthard Base Tunnel is the longest railway tunnel on earth. It is composed of two tunnels of 57 km length each. Within this mandate, detailed planning of the entire logistics for the installation of the railway technology was done.
Optimized processes and schedules had to be developed. The installation of the railway technology is carried out from two main and three smaller installation sites. These sites are equipped with a complex and highly efficient infrastructure to allow the railway technology installation process, which is unique in terms of scale and complexity, to be carried out according to very high quality requirements and a tight schedule.

2007

2015

Büttenberg Tunnel

The 1.5 km long twin-tube Büttenberg tunnel forms part of the new motorway bypass of the city of Biel in Switzerland. It provides increased traffic capacity, reduces travelling times on the motorway and greatly reduces traffic and congestions within the city of Biel.

The tunnels were built using a tunnel boring machine with an earth pressure shield. A particularity and special technical challenge was the fact that the tunnels cross a major railway line, used by 300 trains per day, with a vertical distance of only a few metres.

2000

2011

Moutier Tunnel

The 1.2 km long twin tube Moutier Tunnel forms part of the A16 motorway, called Transjurane. This motorway connects the city of Biel to the French motorway network, crossing the mountainous Jura area. The tunnel crosses a geologically complex region with high tectonic stresses.

The tunnelling was mostly done using conventional mechanical machinery, i.e. rock splitters and hydraulic hammers. Safe support to the tunnel lining is provided by steel beams and sprayed concrete. In particularly difficult zones, tube shields were used and the cross-section had in some areas to be divided into 7 sub-sections for excavation.