The future rail link Cornavin-Eaux-Vives-Annemasse (CEVA) connects the Swiss to thernFrench railway system in the urban area of Geneva. The total length of the project isrnapproximately 16.5 km (14.7 km of which in Switzerland) and includes a single-tube,rndouble-track 10 km long tunnel with 4 underground stations (Carouge-Bachet, Champel-rnH?pital, Genève-Eaux-Vives, Chêne-Bourg) and two bridges. The CEVA project is anrnexample of an urban-suburban, heavy-rail underground system.rnFor fire safety, the stations are equipped with ventilation systems. These are based onrnsimple concepts in order to reduce the complexity and to increase the robustness of thernsystems. During the design phase, one- and three-dimensional numerical analyses of thernventilation concepts for each individual station were carried out in order to confirm thernrequired performance during an emergency.rnThe paper focuses on both, the main fire safety objectives and the concept for smokerncontrol in the stations. Fulfilment of design objectives is shown by results from CFDsimulations.rnThe ventilation concepts of CEVA are compared to other contemporaryrnprojects with stations of similar size in Switzerland and Europe.
展开▼
