Tunnelling is our business - ALPINE Bau Gmbh

Tunnelling is our business 

Our range of underground construction services 

Underground 

Construction

Underground 

Construction 

Founded in 1965 as a small construction 

machine dealership, ALPINE is now 

one of the leading construction groups 

in Europe. Today, our name is synonymous 

with state-of-the-art know-how, 

extreme flexibility, tailor-made solutions 

and the use of the latest in material and 

equipment. We cover the entire spectrum 

of construction output with competence 

in every single sector and complete projects 

of any kind and size reliably and on 

time in more than 30 countries. In doing 

so, we are committed to each project as if 

it were the only project we had. 

The classic construction activities are 

complemented by a number of services 

Crossrail C510 

King’s Cross Station 

North Downs Tunnel, Channel Tunnel Rail Link 

New Kaiser Wilhelm Tunnel 

Tysons Corner, DCMP 

Metro Project ’Stadtbahntunnel’ Karlsruhe 

Heidkopf Tunnel 

Heathrow Baggage Tunnel 

Bochum Lot 306 

Tröingebergs Tunnel 

Arlberg Tunnel 

Gotthard Base Tunnel, Lot 554 Bodio and Lot 452 Faido 

At the Core of Construction. 

Worldwide. 

in project administration, planning and 

financing. Our intensive commitment to 

R&D is to ensure the highest possible 

quality in future constructions and secure 

our leading position in construction 

procedures and material. 

ALPINE’s success is based on the motivation 

and qualification of our employees. 

High investments in training of employees 

and our above-average commitment 

in safety at work are witness that we 

take responsibility for our employees 

seriously. Responsibility for people also 

means responsibility for the environment. 

Part of our company culture is a 

careful use of natural resources. 

Alte Mainzer Tunnels 

Jagdberg Tunnel, A4 

Tiergarten Tunnel H3-6 & H4-3 

Bosruck Tunnel, Second Tube, A9 

Lainzer Tunnel LT31 

Pfänder Tunnel, Second Tube, A14 

450 MW HEP, Powerhouse Cavern Kops II 

Achrain Tunnel 

Tapovan Vishnugad Headrace Tunnel 

High-speed rail line Ebensfeld-Erfurt 

Metro Delhi AMEL C1 & C6 

Singapore Metro Downtown Line, Stage 2 

Singapore Metro Circle Line, Stage 3, 4 & 5 

PORTFOLIO 

ALPINE GROUP 

Bridge Construction 

Building Construction 

Energy 

Environmental Engineering 

Foundation Engineering 

Power Station Construction 

Railway Construction 

Road Construction 

Sports Facility Construction 

Underground Construction

Pfänder Tunnel, 

Second Tube, A14 

Bosruck Tunnel, 

Second Tube, A9 


06 


Gotthard Base Tunnel, 

Lot 554 Bodio and 

Lot 452 Faido 


07 


High-speed rail line 

Ebensfeld-Erfurt 

08 

Singapore Metro Circle Line 


King’s Cross Station 

Metro Project ’Stadtbahntunnel’ 

Karlsruhe 

09 

450 MW HEP, Powerhouse 

Cavern Kops II 

Tapovan Vishnugad 

Headrace Tunnel 

10 

Arlberg Tunnel 

Alte Mainzer Tunnels 

Tysons Corner, DCMP 

Metrorail Project 

11 

Tunnelling is our business 

ALPINE BeMo Tunnelling is a specialist in the engineering and construction 

of all types of underground structures, whether new construction, 

refurbishment, reinstatement or reconstruction. 

Our experienced staff and know-how make us a world leader in our field, 

as can be seen from our excellent project record. Our highly qualified and 

committed team of experts is known internationally for its broad scope 

of technical excellence and innovative solutions for the design and delivery 

of complex and challenging tunnel works. 

We are fully committed to protecting the well-being, health and safety of 

our staff. We therefore work hand in hand with occupational health and 

safety organisations to continuously improve our structures, systems 

and efforts. 

ALPINE BeMo Tunnelling creates value for everyday life by implementing 

complex infrastructure projects that contribute to the well-being of 

society in a safe, efficient and sustainable manner. Thanks to our 

professionalism, together with the high quality of our services, we are 

a preferred contractor for partners and clients alike. 

ALPINE BeMo Tunnelling brings together the tunnelling strength and 

know-how of ALPINE and Beton- und Monierbau (BeMo). 

PROJECT TYPES 

Tunnels for roads, railways, metros 

and underground stations 

Tunnels and facilities for the water 

and energy sector 

> Underground Power Plants 

> Caverns 

> Water tunnels 

> Sewage tunnels 

> Dams 

Shafts & Special Underground 

Structures 

Mining 

STATE-OF-THE-ART 

TECHNOLOGY FOR ALL TYPES 

OF GROUND 

NATM (New Austrian Tunnelling 

Method), SCL, SEM, Shotcrete 

Method 

TBM (EPB- / Slurry- / Hydro- / 

Mix- / Single- / Double-Shield, 

Gripper, Partial-face) 

Scandinavian Method 

For more information and reference 

projects, please visit our websites. 

www.alpine.at 

www.alpine-bemo.com 

PORTFOLIO 

Feasibility Studies 

Project Planning 

Project Development 

Project Investment 

Construction & Reconstruction 

Refurbishment & Reinstatement 

> Tunnels 

> Buildings & Structures 

Modernisation 

Know-how Transfer 

> Technical Support 

> Consulting 

Engineering Services 

> Design & Structural Engineering 

> Mechanical Engineering 

> Survey 

> Geotechnical Engineering 

Shotcrete works 

Grouting 

Slope Protection 

Construction Pit & Trench 

Protection

04 Underground Construction 

Areas of expertise 

UndergroUnd constrUction & tUnnelling 

ALPINE BeMo Tunnelling (ABT) has been a leading player in the field of tunnelling since 1964. Around 70 % of our tunnelling work is conducted 

outside Austria, making ABT one of Austria‘s most successful international construction companies. Our span of activities in Underground 

Construction & Tunnelling includes: 

Tunnels for roads, railways, metros and underground stations 

Tunnels and facilities for the water and energy sector 

Reconstruction of underground structures and tunnels 

Refurbishment & Reinstatement of underground structures, tunnels, buildings and structures 

Shafts and Special Underground Structures 

Mining 

design & strUctUral engineering 

ABT‘s design expertise is based on more than 40 years of experience. Key services provided by the Tunnel-Design Department 

include: 

DetaileD Design: Continuous feed-back from our tunnel-construction sites and being seamlessly involved in our projects enables 

optimisation of our designs with respect to safety, quality, constructability, programme and cost saving. 

Value engineering ProPosals anD Feasibility stuDies: Together with the site teams Value Engineering Proposals are 

developed, leading to higher quality, safety, innovation and overall cost reduction for our clients. 

numerical moDelling: With many years of experience in this field, the Tunnel-Design Department has the expertise 

for carrying out complex 2D and 3D analyses using state-of-the-art software in order to create construction designs and feasibility studies. 

This enables the modelling of construction processes, nonlinear material behaviour (soil, rock, concrete, steel, etc.), steady state and 

transient seepage flow, consolidation, steady state and transient heat transfer as well as dynamics. 

methoD selection anD construction sequencing: In close cooperation with the site team and the Mechanical 

Engineering / Plant Department, construction method and construction sequences are selected. 

Know-how transfer & consUlting 

ABT’s Know-how Division exports the know-how of our engineers to many countries throughout the world. The range of services 

includes: 

Technical Consulting & Support 

Design Know-how 

Value Engineering & Feasibility Studies 

Project Planning & Development 

Estimation and Tender Preparation 

Operation and Maintenance 

Mechanical Engineering Services including method selection and construction sequencing 

Survey and Geotechnical Engineering Services 

Mechanical engineering & Plant dePartMent 

Mechanical engineering / electrical engineering 

Project-specific tasks / detailed engineering services for company-owned projects and for the Know-how Division 

> Mechanical / electrical estimation and work preparation for individual projects for consecutive construction stages 

> Site set-up planning & site service 

Safety related tasks for our company-owned facilities and sites 

> Safety-related work preparation 

> Safety site supervision

Innovative Solutions 

ACHRAIN TUNNEL 

A bridge going underground 

The Achrain Tunnel is a 3-lane road 

tunnel with a length of 3,340 m 

near Dornbirn in Austria. 

The necessity for a fast closure of the 

invert by the use of shotcrete, followed 

by an immediate placement of the final 

invert arch without longitudinal subdivision, 

and a subsequent installation of 

the final lining, led to a bridge solution 

which allowed the tunnelling works 

COmbISHELL™ 

to be continued without unnecessary 

interruptions. The bridge was used as 

formwork support for the invert arch 

and the final lining abutment. 

Further construction included 13 crosspassages 

to the escape gallery, one 

crosspassage for fire & rescue vehicles 

and the reinstatement of the escape 

gallery (12 m²). 

Success Story: CombiShell™ Tunnelling Method 

With the great flexibility offered by NATM, chamber geometries were 

developed which neatly enveloped the complex path of the baggage 

handling system at Heathrow Airport whilst minimising overall excavation 

volumes. Located directly below operational aircraft stands, settlement 

considerations and safety of construction were of paramount 

importance.The novel tunnelling system utilised sprayed concrete 

for both the primary and secondary linings, acting as a permanent 

composite structure. The design of the CombiShell™ proposal was 

VALUE ENGINEERING 

Value Engineering saves 

time and money for our clients 

Value Engineering on Channel Tunnel Rail Link’s 3.2-km-long North Downs Tunnel 

for the Eurostar-High-speed-trains allowed savings of several million pounds 

sterling and contributed towards completion five months ahead of schedule. 

Underground Construction 

undertaken by Morgan Sindall (England) and ALPINE BeMo Tunnelling 

under a “technology transfer” agreement. ALPINE BeMo Tunnelling 

utilises computer modelling techniques together with 40 years of 

experience in order to achieve economical and practical schemes. 

CombiShell™ is a registered Trademark of ALPINE BeMo Tunnelling 

(formerly: Beton- und Monierbau) and Morgan Sindall. 

Over the last 20 years, ALPINE BeMo Tunnelling 

has constructed 650 km and designed 50 km of tunnels and 

other underground structures. 

05


Tunnels for Roads and 

Motorways 

Pfänder Tunnel, Second Tube, A14 / Bosruck Tunnel, Second Tube, A9 

ABT is the main contractor for the construction of the second tubes of the Pfänder and Bosruck 

tunnels. Both are 2-lane motorway tunnels. New Austrian Tunnelling Method (NATM) is used for 

the second tube of Bosruck Tunnel and was also used for the construction of the first tube of 

Pfänder Tunnel, which ABT built in the years 1977-1981. 


After the construction of Heidkopf Tunnel, a twin-tube 2-lane motorway tunnel, completed in 

2006, another contract with DEGES followed in the form of the Jagdberg Tunnel. This 3-lane 

motorway tunnel between Jena/Göschwitz and Magdala is beeing executed using the NATM 

method. 

Pfänder Tunnel, Second Tube is the first road 

tunnel to be built by TBM in Austria. 

FEATURES 

Pfänder Tunnel, Second Tube // The challenge is the ground – a “molasse” consisting 

of conglomerate, sandstone, marl-sandstone, marl and clay-marl, and soil. Execution is 

being carried out by Single Shield TBM, lining with pre-cast concrete segments, crosspassages 

and soil by NATM. 

Bosruck Tunnel, Second Tube // The construction includes 14 crosspassages and 

seven lay-by enlargements. Excavation is being effected by drill & blast and excavator 

(NATM). 

Jagdberg Tunnel // Excavation of a 140 m deep ventilation-shaft by raiseboring 

(Ø 1.5 m) and shaft sinking (Ø 8 m). 

Pfänder Tunnel, Second Tube 

Location: Bregenz-Lochau / AT 

Total length: 6,744 m 

Value: € 123.197 million 

Construction Period: 2007-2012 

Bosruck Tunnel, Second Tube 

Location: Spittal/Pyhrn-Ardning / AT 



Construction Period: 2009-2013 

Jagdberg Tunnel 

Location: Jena/Göschwitz-Magdala / DE 



Construction Period: 2008-2012

Tunnels for Railways 


The Lainzer Tunnel LT31, commissioned by ÖBB was excavated using NATM (side-wall drifts) in 

soil. Two drives were started from each of the two starting shafts simultaneously. In addition, five 

escape tunnels and escape shafts were part of the contract. 

Gotthard Base Tunnel, Lot 554 Bodio & Lot 452 Faido 

TBMs and NATM were used to construct the two railway tunnel lots. ALPINE is, as part of a JV, the 

general contractor for railway technology of the Gotthard Base Tunnel. 


The Scandinavian tunnelling method (i.e. comprehensive grouting / no inner lining) was used for 

the Tröingebergs Tunnel. 

Tiergarten Tunnel H3-6 & H4-3 are other 

outstanding railway tunnel projects with 

excellent high quality. 

FEATURES 

Lainzer Tunnel LT31 // The main challenge was the inner-city tunnel drive in close 

proximity to densely populated residential area and (the 2 km section) just below 

Vienna’s existing main railway line. 

Gotthard Base Tunnel // High speed railway line tunnel with a total length of 

57 km after completion and for speeds of up to 240 km/hour. 

Tröingebergs Tunnel // Main challenge: full face drill & blast excavation underneath 

densely populated residential area with overburden of only 14 m to 25 m. 



Location: Vienna / AT 


Value: € 155 million 

Construction period: 2006-2010 

Gotthard Base Tunnel 

Location: Erstfeld - Bodio / CH 

Total length: Lot Faido 27,045 m, 

Lot Bodio 31,673 m 




Location: Falkenberg / SE 




07



The original Kaiser Wilhelm Tunnel was completed 

in 1877 and no longer meets current safety 

standards. The approx. 4,200-m-long tunnel 

is to be built predominantly in clay, clay-slate, 

silt- and sandstone. Along a length of about 400 

m the tunnel will be driven through soft ground 

with little overburden. The TBM chosen is able to 

switch between open and EPB mode. The tunnel 

is being lined with 2-m-long and 0.4-m-thick reinforced 

pre-cast concrete segments. Delivery of 

the tunnel lining segments and removal of about 

High-speed rail line Ebensfeld-Erfurt 

Baumleite Tunnel and VP Lichtenfels, Kulch & Lichtenholz 

Tunnels are sections of the 107 km long 

high-speed rail line Ebensfeld-Erfurt. Baumleite 

Tunnel is to be built in lower lacustrine limestone 

(carst formations) and executed with the NATM 

method. Concerning VP Lichtenfels, the special 

feature of the Kulch Tunnel is the undercutting 

of the LIF 1 Federal Highway with a shallow 

covering protected by a double pipe roof. The 

Lichtenholz Tunnel is being driven in geologically 

difficult “Feuerletten” over a length of 300 m. The 

“Feuerletten” is characterised by intense swelling, 

producing an increase in volume of up to 30 %. 

350,000 m³ spoil has to be done by train. Both 

tunnel tubes will be connected by eight crosspassages 

with a length of 15 m each. 

FEATURES 

Structural Analysis and Detailed Design 

Underpassing residential area with the 

tunnel crown just below ground surface 

Parallel construction in the vicinity of the 

existing old tunnel 

construction, design & structural engineering 

by ALPINE BeMo Tunnelling GmbH 

FEATURES 

Baumleite Tunnel – High-speed rail 

line Ebensfeld-Erfurt // We are also 

responsible for Structural Analysis and 

Detailed Design. Challenges during construction 

are the shallow overburden and 

carst formations. 

VP Lichtenfels, Kulch & Lichtenholz 

Tunnels – High-speed rail line Ebensfeld- 

Erfurt // The 2-track railway tunnels 

include a 175-m-long rail viaduct, five 

new road bridges and 3,360,000 m3 of 

earth moving. 


Location: Ediger-Eller - Cochem / DE 




Baumleite Tunnel – 

High-speed rail line 

Location: Ebensfeld-Erfurt / DE 




VP Lichtenfels, Kulch & Lichtenholz 

Tunnels – High-speed rail line 

Location: Ebensfeld-Erfurt / DE 

Total length: Kulch Tunnel: 1,331 m, 

Lichtenholz Tunnel: 931 m 



Photo: Wolfgang Sitter

Tunnels for Metros and 

Underground Stations 

Singapore Metro Circle Line, Stage 3, 4 & 5, C852 & C855 / Metro Delhi AMEL C1 & C6 

As a specialist for the design & construction of metro projects, we are active in countries all 

over the world. After successful completion of Singapore Metro Circle Line, C852 & C855 and 

Metro Delhi AMEL C1 & C6, we are currently working on the € 340 million project Downtown 

Line, Stage 2, C917 & C918 in Singapore, using Slurry TBMs and EPB TBMs for the bored 

twin tunnels. 

King’s Cross Station Redevelopment 

The purpose of this metro project in Central London was the connection of existing metrolines 

and St. Pancras Station (King’s Cross). A complex subterranean construction was 

necessary, i.e. pedestrian tunnels, stair and escalator shafts and vertical shafts. LaserShell™ 

method in conjunction with the TunnelBeamer™ real-time surveying package was used as, 

tunnelling system for the London clay. We have also recently been awarded the € 280 million 

contract C510, Whitechapel and Liverpool Street Station Tunnels, as part of the Crossrail 

project. 

Metro Project ‘Stadtbahntunnel’ Karlsruhe 

The works for the inner city ‘Stadtbahntunnel’ Karlsruhe have already commenced and the 

tunnel driving will start in 2012. The 4.6-km project will include 3.9 km of tunnel and seven 

underground metro stations. A similar project in confined space was the inner city lot 306 of 

the metro Rhine-Ruhr-Bochum. 

C855: Slurry TBM meets the challenging geology 

of extremely fine and soft ground, weathered rock 

and exceptionally strong granite. 

FEATURES 

Singapore Metro Circle Line, Stage 4 & 5, C852 & C855 // Construction of three 

metro stations (Holland, Buona Vista, NUH) by cut & cover and architectural fitting of 

the station ONH. 

King’s Cross Station Redevelopment // This site was a technical challenge 

because of its proximity to the existing metro-lines, railway lines and 

historical buildings above the excavated zones. 

Metro Project ’Stadtbahntunnel’ Karlsruhe // The aim of this sophisticated 

construction project is to free the inner city of traffic and enhance recreational 

quality for pedestrians. 


Singapore Metro Circle Line, Stage 3, 

4 & 5, C852 & C855 

Location: Singapore / SG 



Construction period: 2003–2010 


Location: Delhi / IN 




King’s Cross Station Redevelopment 

Location: London / UK 

Total length: 350 m 



Metro Project 

’Stadtbahntunnel‘ Karlsruhe 

Location: Karlsruhe / DE 




09


450 MW HEP, Powerhouse 

Cavern Kops II 

The ‘Kopswerk II’ is part of a new pump-storage 

scheme with three machine units and a total 

generation capacity of 450 MW. All new construction 

of the ‘Kopswerk II’ is situated underground, 

such as a power tunnel, surge chamber, pressure 

tunnel, powerhouse and transformer cavern. 

Therefore the maximum environmental protection 

could be achieved. The only installations that 

will be visible above ground are the switchyard 

and an access road. 

Tapovan Vishnugad Headrace Tunnel 

We have been commissioned to construct a head 

race tunnel (HRT) for 4 x 130 MW HEP Tapovan for 

our client NTPC. We are using a Double Shield TBM 

and precast hexagonal-shaped segmental lining 

for the 8-km-long HRT section. The remaining 

4.5-km-long section and adits are excavated by 

road header or drill & blast method (NATM). 

FEATURES 

Tailrace gallery – excavation of 90 m 

soft rock section below the Ill river, under 

the protection of a pipe arch (pipe roofing) 

and two groundwater lowering wells. 

Mucking: Material management & spoil 

removal using a mucking shaft to load 

the crusher in a chamber below the cavern. 

Onward transportation by conveyor belt to 

landfill area. 

FEATURE 

Challenging Himalaya region, heavily 

fractured and unstable fault zone and 

highly abrasive quartzite layers 

Powerhouse Cavern Kops II 

Location: Partenen / AT 

Excavation works: 

> Powerhouse cavern: ~ 114,000 m³ 

> Powerhouse cavern concrete lining 

works: 48,000 m³ 

> Transformer cavern: ~ 11,000 m³ 

> Surge Chamber: ~ 9,000 m³ 

> 1,782 m various galleries: ~ 78,000 m³ 



Tapovan Vishnugad 

Headrace Tunnel 

Location: Chamoli district, 

Uttarakhand / IN 



Construction period: 2006-2012

Refurbishment & Reinstatement 

Safety engineering upgrade, Arlberg Tunnel 

The Arlberg Tunnel is a 2-track railway tunnel. The enlargement and upgrade was necessary due to 

new tunnel safety regulations. Six escape exits and six niches were built. The existing 

historical stone masonry was enlarged, cleaned and reinforced. Furthermore, the invert of both 

tracks was deepened and a ballastless concrete track slab system was built. 

Modernisation, Alte Mainzer Tunnels 

For modernisation and enlargement of the very shallow Alte Mainzer Tunnels in soft ground, an 

innovative grouted anchor system was installed according ABT’s special proposal. The systematic 

ground pre-strengthening around the existing tunnel has reduced settlements to a maximum of 

10 mm and allowed to abandon the installation of compensation grouting. 

ABT’s innovative grouted anchor system has 

reduced settlements to a maximum of 10 mm. 

FEATURES 

Safety engineering upgrade, Arlberg Tunnel // All construction had to be done 

without interrupting railway-operations. This was achieved by closing one track and 

keeping the second one in operation. 

Modernisation Alte Mainzer Tunnels // Construction, Design & Structural 

Engineering by ABT and the challenge of underpassing main roads, buildings and 

ancient walls. 

Know-how Transfer 

Tysons Corner, Silver Line, Dulles Corridor Metrorail Project (DCMP) 

Our know-how and our experience in tunnel construction are in increasing demand abroad. We 

also export our know-how to the United States, e.g. for the project Tysons Corner, Silver Line, 

DCMP near Washington D.C.. Among other know-how transfer projects to the US were the Beacon 

Hill Station Project, C170 in Seattle, Reach 5 for San Vicente Pipeline near San Diego and the Los 

Angeles Metro Gold Line Eastside Extension. 


Arlberg Tunnel, safety 

engineering upgrade 

Location: Langen am Arlberg / AT 




Alte Mainzer Tunnels, modernisation 

Location: Mainz / DE 

Total length: 908 m 



Tysons Corner, Dulles Corridor 

Metrorail Project 

Location: Vienna, Virginia / USA 




11

ALPINE BeMo Tunnelling GmbH 

Bernhard-Hoefel-Strasse 11 · 6020 Innsbruck · Austria · Phone +43 512 3311-0 · Fax +43 512 392655 

office@alpine-bemo.com · www.alpine-bemo.com · www.alpine.at 

Subject to changes, printing and typographical errors. Date: 09.2011 / I

Tunnelling is our business - ALPINE Bau Gmbh

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