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Experimental and Numerical Investigation of Bypass Tunnel on Piston Effect of Underground Subway Station

Published: 29 March 2017 Publication History

Abstract

With the rapid growth of the infrastructure constructions in China, more and more metro lines have been built in recent years. The piston wind have a significant influence on the air temperature and the flow field of subway stations and tunnels. The bypass wind tunnel located on both side of the platform, which have great effect of shunt piston wind. This study conducted a train-induced experiment in Xia wafang (XWF) station of Tianjin metro line 1, and the air temperature and velocity data were recorded. Meanwhile, a train-induced numerical simulation was carried out for full-scaled model. The experimental data was compared with the CFD results to analyze the influence of bypass tunnel on the indoor environment and the comfort of passengers. The results indicate that the bypass tunnel can significantly reduce the air velocity of the waiting area and improve the comfort of passengers. The bypass tunnel play an important role in reducing the piston airflow entering the stations, and reducing the piston effect of the station environment.

References

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IEEA '17: Proceedings of the 6th International Conference on Informatics, Environment, Energy and Applications
March 2017
122 pages
ISBN:9781450352307
DOI:10.1145/3070617
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 29 March 2017

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Author Tags

  1. Automatic platform gates
  2. Bypass tunnel
  3. CFD investigation
  4. Experimental investigation
  5. Piston effect

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