EN 14067-3:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave – Aerodinamika – 3. del: Aerodinamika v predorihBahnanwendungen - Aerodynamik - Teil 3: Aerodynamik im TunnelApplications Ferroviaires - Aérodynamique - Partie 3: Aérodynamique en tunnelRailway applications - Aerodynamics - Part 3: Aerodynamics in tunnels93.060Gradnja predorovTunnel construction45.060.01Železniška vozila na splošnoRailway rolling stock in generalICS:Ta slovenski standard je istoveten z:EN 14067-3:2003SIST EN 14067-3:2004en01-marec-2004SIST EN 14067-3:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14067-3April 2003ICS 45.060.01English versionRailway applications - Aerodynamics - Part 3: Aerodynamics intunnelsApplications ferroviaires - Aérodynamique - Partie 3:Aérodynamique en tunnelBahnanwendungen - Aerodynamik - Teil 3: Aerodynamik imTunnelThis European Standard was approved by CEN on 2 January 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14067-3:2003 ESIST EN 14067-3:2004

1)in preparationSIST EN 14067-3:2004

Initial head wave2
Initial tail wave3
1. Reflection head wave4
2. Reflection head wave5
1. Reflection tail wave6
Exit wave7
Passing of head8
Passing of tailFigure 3 — Wave diagram and pressure transients due to a train passage through a tunnelSIST EN 14067-3:2004

Head passing2
Tail passingFigure 4 — Air velocities in a tunnel caused by a passing trainA positive air velocity is defined as the longitudinal airspeed relative to the tunnel for which the direction is in thesame sense as the movement of the train.There will also be lateral and vertical components of flow due to vorticity and turbulence. These will not generallyaffect the train or its occupants but may have effects on external components of the train.More details will be given in prEN (WI 00256128).4.4 Forces on objects and people in the tunnelForces on objects and people are caused by pressures and by the air flow. Magnitudes and directions of theseforces change during the passage of the train through the tunnel. The highest values are normally caused duringthe passing of the train and by the wake behind the train.More details will be given in prEN (WI 00256128).4.5 ImplicationsIf the vehicle is fully pressure sealed, no pressure change takes place inside it, but consequently there is anincreased pressure load on the vehicle due to the pressure difference across the body structure. This will includean increased load on windows, doors, corridor connections, retention toilet tanks etc, as well as the basic vehiclebody structure. This transient aerodynamic loading contributes to a reduced fatigue life and indeed on occasionalSIST EN 14067-3:2004
...