Semmering-Basistunnel - Eisfreihaltung von Schächten am Beispiel des Versorgungsschachtes Fröschnitz 2

Titel in Übersetzung: Semmering Base Tunnel - Keeping shafts free of ice through the example of the Fröschnitz 2 supply shaft: Keeping Shafts free of Ice through the Example of the Fröschnitz 2 Supply Shaft

Publikation: Beitrag in einer FachzeitschriftArtikel

Abstract

The Fröschnitz 1 and Fröschnitz 2 supply shafts of the Semmering
Base Tunnel are used for the ventilation of the tunnel drives,
transport of personnel, materials and machinery and as escape
and rescue routes. Until the final completion of the concrete inner
lining in the shafts, water still emerges repeatedly at the surface
at a few locations of the shotcrete support layer. This led above
all for the Fröschnitz 2 shaft to ice formation during longer periods
with outside air temperatures below the freezing point of water
with simultaneous operation of the fresh air supply. The effectiveness
of warm air supply was investigated with thermodynamic
and aerodynamic investigations and then the cost-effectiveness
of two selected systems to provide warm air were considered.
The aerodynamic simulations showed that in particular the entry
angle of the warm fresh air flow is decisive for the magnitude of
the warm air losses.
Titel in ÜbersetzungSemmering Base Tunnel - Keeping shafts free of ice through the example of the Fröschnitz 2 supply shaft: Keeping Shafts free of Ice through the Example of the Fröschnitz 2 Supply Shaft
Originalsprachemehrere Sprachen
Seiten (von - bis)631-638
FachzeitschriftGeomechanics and Tunnelling
Jahrgang2019
Ausgabenummer6
DOIs
PublikationsstatusVeröffentlicht - 25 Nov 2019
VeranstaltungATC2 -Symposium - Technische Universität Graz, Graz, Österreich
Dauer: 29 Nov 201929 Nov 2019
http://austrian-tunnel-competence-center.at/

Schlagwörter

  • Strömungsmechanik
  • Wärmelehre
  • Eisbildung
  • Schacht

ASJC Scopus subject areas

  • !!Geotechnical Engineering and Engineering Geology
  • !!Mechanical Engineering

Fields of Expertise

  • Mobility & Production

Treatment code (Nähere Zuordnung)

  • Application

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