Browse > Article
http://dx.doi.org/10.7474/TUS.2018.28.3.247

Effect of a Pressure Relief System in a High-speed Railway Tunnel  

Seo, Sang Yeon (GS E&C)
Ha, Heesang (GS E&C)
Lee, Sang Pil (GS E&C)
Publication Information
Tunnel and Underground Space / v.28, no.3, 2018 , pp. 247-257 More about this Journal
Abstract
High-speed trains have been developed widely in many countries in order to transport large quantity of people and commodities rapidly. When a high speed train enters a tunnel, aerodynamic resistance is generated suddenly. The resistance caused from air pressure induces micro pressure wave and discomfort to passengers in a train. Therefore, a pressure relief system should be installed in a tunnel to reduce the resistance acting against the running train in a tunnel. Additionally, the shape of a grain should be streamlined in order to reduce aerodynamic resistance caused by a high-speed train. The cross-section of a tunnel also should be carefully designed to reduce discomfort of passengers. This study represents the effect of pressure relief ducts installed between two running tunnels. The pressure relief duct was integrated with a cross-passage in order to save cost and construction time. One-dimensional network numerical simulations were carried out in order to estimate the effect of pressure relief systems.
Keywords
Air pressure in a tunnel; One-dimensional network numerical analysis; Pressure change within time interval; Pressure relief duct; Aural discomfort;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Atkins W.S., 1999, Piston relief ducts for AlpTransit Gotthard, The Channel Tunnel Experience, Institution of Engineering and Technology, Conference Publication (Book 433), 20-23.
2 Barthes, H., Bordas, A. and Bouillot, D., 1994, Tunnels - special works, Proceedings of the In-stitution of Civil Engineers, The Institution of Civil Engineers, Engineering Channel Tunnel, Part 3: French Sectoin, 63-75.
3 Fairbairn, A. G., 1995, Tunnel ventilation, including aerodynamic, Proceedings of the Institution of Civil Engineers, The Institution of Civil Engineers, Engineering Channel Tunnel, Part 4: Transport Systems, 32-41.
4 Henson, D., 1995, Aerodynamics, Ventilation and Cooling the tunnel, Engineering the Channel Tunnel, Kirkland, J., E&FN SPON/EUROTUNNEL, 217-220.
5 UIC. 779, 2005, Determination of railway tunnel cross-sectional area on the basis of aerodynamic considerations, Technical document, Railway Technical PublicationsUIC leaflet 779-11.
6 Reinke, P., and Busslinger, A., 2011, Improvement of aero and thermodynamics of rail tunnels by cross-connections with shut-off devices, Research 2011, HBI Haerter Ltd., Swiss
7 Southwood, A. J., 1994, The Channel Tunnel : A Designer's Perspective, A. J., Mott MacDonald, 11-13.
8 UIC 660, 2002, Measures to ensure the technical compatibility of high-speed trains, Technical document, Railway Technical Publications UIC leaflet 660.
9 Vardy, A.E. and Dayman B., 1979, Alleviation of tunnel entry pressure transient: 2 - theoretical modelling and experimental correlation, Proceeding of the 3rd International Symposium on the Aerodynamics and Ventilation of Vehicle Tunnels, BHRA Fluid Eng., Cranfield, 363-376.
10 Vardy, A.E., 1996, Aerodynamic drag on trains in tunnels, Part 1: synthesis and definitions, Pro-ceedings of the Institute of Mechanical Engineers, Part F, J. Rail Rapid Transit 210(1), 29-38.   DOI