Ventilation and cooling of tunnel systems and underground sites

Road tunnel with jet fans for ventilation
Road tunnel with jet fans for ventilation

Leitet Herunterladen der Datei einVentilation of road tunnels
Leitet Herunterladen der Datei einReference list

The design and implementation of ventilation installations are executed considering the country specific guidelines and requirements as well as the construction, operational and maintenance costs.

Train in a tunnel
Train in a tunnel

Leitet Herunterladen der Datei einVentilation of railway tunnels
Leitet Herunterladen der Datei einReference list

The ventilation design of a metro or railway tunnel system requires broad know-how in various fields: from profound knowledge in aero- and thermodynamics and the capability to perform simulations of complex tunnel systems to the implementation of the design into operational, reliable ventilation systems.

Supply fans before refurbishment
Supply fans before refurbishment

Leitet Herunterladen der Datei ein Refurbishment of ventilation systems
Leitet Herunterladen der Datei ein Reference list

We analyse your ventilation system and provides a new ventilation design for safe and economic operation considering the current guidelines and requirements. For the refurbishment or optimisation of an existing ventilation system, HBI provides knowledge of specialists in various disciplines such as tunnel construction, control system, simulation, fire protection, mechanical equipment etc. We provide the adequate approach meeting the requirements of your tunnel project.

Leitet Herunterladen der Datei ein Tunnel Ventilation Simulator

HBI Haerter Consulting Engineers plans and realizes an optimal ventilation for street tunnels by integrating the construction, operations and maintenance costs as well as all modes of operation. We solve the planning tasks in an experienced and competent team of engineers and physicists.


Reference projects

Ventilation of road tunnels

Ventilation channel with direction change
Ventilation channel with direction change
New axial fans for smoke extraction in the Rheinufertunnel
New axial fans for smoke extraction in the Rheinufertunnel

Tunnel Rheinufer Düsseldorf

Leitet Herunterladen der Datei ein Smoke extraction and keeping smoke-free

Installation of a jet fan in the Cross City Tunnel
Installation of a jet fan in the Cross City Tunnel

Cross City Tunnel Sydney

Leitet Herunterladen der Datei ein Tunnel ventilation

Jet fans at the south portal of the Giswil tunnel
Jet fans at the south portal of the Giswil tunnel
Glass enclosure at the east portal of the Petuel tunnel
Glass enclosure at the east portal of the Petuel tunnel
Vent stack during smoke test in the tunnel Branisko
Vent stack during smoke test in the tunnel Branisko

Tunnel Branisko

Leitet Herunterladen der Datei ein Tunnel ventilation

Portal of tunnel Leissigen
Portal of tunnel Leissigen
Model of the lamella roof in Oberkirch-Lautenbach for CFD-simulation
Model of the lamella roof in Oberkirch-Lautenbach for CFD-simulation

Oberkirch-Lautenbach noise protection gallery

Leitet Herunterladen der Datei ein Expert opinion on open ceiling ventilation

Tunnel Gotschna interior with jet fan
Tunnel Gotschna interior with jet fan

Gotschnatunnel, bypass Klosters

Leitet Herunterladen der Datei ein Tunnel ventilation

Exhaust damper in the crossway between the tubes of the Kirchwaldtunnel
Exhaust damper in the crossway between the tubes of the Kirchwaldtunnel
Western tube of the Richard-Strauss-Tunnel with maximum lighting
Western tube of the Richard-Strauss-Tunnel with maximum lighting

Tunnel Richard-Strauss Munich

Leitet Herunterladen der Datei ein Tunnel ventilation

Assembly inspection of an axial fan in the M5East tunnel
Assembly inspection of an axial fan in the M5East tunnel

M5East Tunnel Sydney

Leitet Herunterladen der Datei ein Exhaust air filter

Jet fans with tilted silencers
Jet fans with tilted silencers
Aerial image of Glarus
Aerial image of Glarus

Preliminary design study of bypass Glarus

Leitet Herunterladen der Datei ein Tunnel ventilation

Sörenberg tunnel during construction
Sörenberg tunnel during construction

Transit gas tunnel Sörenberg

Leitet Herunterladen der Datei ein Dimensioning of ventilation system


Ventilation of railway tunnels

Eastern tube of Lötschberg-Base tunnel
Eastern tube of Lötschberg-Base tunnel

Lötschberg base tunnel

Leitet Herunterladen der Datei ein Ventilation and safety concept

Simulation of smoke propagation in the Gotthard-Basistunnel
Simulation of smoke propagation in the Gotthard-Basistunnel
Site ventilation through airducts in the Lötschberg-Base tunnel
Site ventilation through airducts in the Lötschberg-Base tunnel
View through main train station Stuttgart 21
View through main train station Stuttgart 21
View through main train station Stuttgart 21
View through main train station Stuttgart 21

Stuttgart 21, Filder station

Leitet Herunterladen der Datei ein Ventilation and escape route concepts

Overview of the Young Dong train tunnel project
Overview of the Young Dong train tunnel project

Young Dong railway tunnel

Leitet Herunterladen der Datei ein Ventilation and risk control

Temperature gradient in the tunnel when a train is burning
Temperature gradient in the tunnel when a train is burning

Young Dong railway tunnel

Leitet Herunterladen der Datei ein Verification of smoke control

Maintenance at the portal of the Gotthard-Base tunnel
Maintenance at the portal of the Gotthard-Base tunnel

Gotthard base tunnel

Leitet Herunterladen der Datei ein Climate during maintenance

Two-part moving gate in the train tunnel Lötschberg-Basislinie
Two-part moving gate in the train tunnel Lötschberg-Basislinie
Visualisation of smoke and heat distribution at the front of a train (CFD-simulation)
Visualisation of smoke and heat distribution at the front of a train (CFD-simulation)

Tunnel Groene Hart, Dordtsche Kil and Rotterdam Noordrand

Leitet Herunterladen der Datei ein Efficiency of the emergency ventilation

Tunnel Guadarrama: two single track tubes with crossways and two emergency stops
Tunnel Guadarrama: two single track tubes with crossways and two emergency stops
Overview of the light-rail system of the city railway in Bonn
Overview of the light-rail system of the city railway in Bonn
Underground railway station Marienplatz: fire simulation with CFD to determine the visibility
Underground railway station Marienplatz: fire simulation with CFD to determine the visibility

Metro station Marienplatz, Munich

Leitet Herunterladen der Datei ein Safety and ventilation concept

Overview of the light-rail system of the city railway Stuttgart: U12 Hallschlag-Münster
Overview of the light-rail system of the city railway Stuttgart: U12 Hallschlag-Münster

Stuttgart city railway: U12 Hallschlag-Münster

Leitet Herunterladen der Datei ein Safety and ventilation concept

Cross section of the station Mobilitätsdrehscheibe Augsburg
Cross section of the station Mobilitätsdrehscheibe Augsburg

Augsburg mobility hub

Leitet Herunterladen der Datei ein Safety and ventilation concept

TRANSRAPID hover train at the airport Munich
TRANSRAPID hover train at the airport Munich
Air ducts beside trains during works in light-rail system Berlin
Air ducts beside trains during works in light-rail system Berlin

U55 Brandenburger Tor - Lehrter station, Berlin

Leitet Herunterladen der Datei ein Ventilation during installation works

Southern portal of the Guadarrama tunnel
Southern portal of the Guadarrama tunnel

Guadarrama tunnel, high-speed railway

Leitet Herunterladen der Datei einAerodynamics, climate and equipment

Concrete pouring on the tunnel floor with site ventilation in the Gotthard-Base tunnel
Concrete pouring on the tunnel floor with site ventilation in the Gotthard-Base tunnel
Skymetro at the station
Skymetro at the station
CFD-study on natural smoke extraction in the HSL-Zuid tunnel
CFD-study on natural smoke extraction in the HSL-Zuid tunnel
Train in train tunnel Engelberg
Train in train tunnel Engelberg

Engelberg railway tunnel

Leitet Herunterladen der Datei ein Smoke extraction and smoke control

Site ventilation for the pump storage station Linth-Limmern
Site ventilation for the pump storage station Linth-Limmern

Pump storage station Linth-Limmern

Leitet Herunterladen der Datei ein Site ventilation


Refurbishment of ventilation systems

Construction of the niches for jet fans in the tunnel de la Vue-des-Alpes
Construction of the niches for jet fans in the tunnel de la Vue-des-Alpes
Tunnel Amberg interior after maintenance
Tunnel Amberg interior after maintenance
Installation of the axial fans in tunnel Isla Bella in 1980
Installation of the axial fans in tunnel Isla Bella in 1980
Factory acceptance test of a jet fan
Factory acceptance test of a jet fan
Northern portal of the Elbtunnel with four tubes
Northern portal of the Elbtunnel with four tubes
Fans in the extraction center of tunnel Heslach
Fans in the extraction center of tunnel Heslach
New jet fans in tunnel Piumogna
New jet fans in tunnel Piumogna