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2013 Vol.15, Issue 6 Preview Page
A numerical study on the pressure relief by a vertical shaft in a high speed railway tunnel

고속열차의 터널 진입시 수직갱의 압력저감효과에 대한 수치해석 연구

Hyo-Geun Kim1
,
Sang-Yeon Seo2*
,
Hee-Sang Ha3
,
Hyeok-Bin Kwon4
김 효근1
,
서 상연2*
,
하 희상3
,
권 혁빈4
1GS E&C, Associated Research Engineer
2GS E&C, Research Engineer
3GS E&C, Principal Research Engineer
4Korean National University of Transportation, Professor
1GS건설, 전임연구원
2GS건설, 선임연구원
3GS건설, 수석연구원
4한국교통대학교, 교수
*교신저자. *Corresponding Author. 
30 November 2013. pp. 559-570
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Abstract

High speed railway can transport large quantity of people and commodities in a short time and has become one of the most desirable and environmentally friendly transportation. However, it is hard to have a complicated route for high speed railways, construction of tunnels is essential to pass through a mountain area. When a high speed train enters a tunnel, pressure wave is created in a tunnel and the wave causes micro pressure wave and discomfort to passengers. In order to alleviate pressure wave in a tunnel, constructing a vertical shaft is one of the most efficient ways. This study represents a numerical analysis module, which takes into account the effect of a vertical shaft in a tunnel. The module can be used in a numerical program (TTMA) specialized for aerodynamics in a tunnel, and it was validated by comparing numerical results with various measurements in Emmequerung tunnel and results from numerical analysis using Fluent.

Keywords
High speed railway tunnel
Vertical shaft
Pressure wave
CFD
Pressure alleviation

고속철도는 대규모의 인원과 물자를 신속하게 운반할 수 있는 친환경 운송수단으로 각광받고 있다. 고속철도는 빠른 속도로 인해 선형이 제한되어 건설되므로 산이 많은 지형에서는 터널이 많아진다. 고속으로 주행중인 열차가 터널에 진입하는 경우에 터널 내부에서 압력파가 발생하는데 이로 인해 이명감과 미기압파라는 문제가 발생한다. 터널 내의 압력파를 완화시키기 위한 다양한 방법 중 수직갱을 이용한 방법도 연구되고 있는데 이 연구에서는 TTMA라는 고속철도 터널 공기역학 해석프로그램을 이용하여 수직갱에 의한 수치해석모듈을 개발하였다. 이를 검증하기 위해 실측결과와 비교하여 그 성능을 검증하였으며 기존의 수치해석결과와 비교하여 그 우수성을 검증하였다.

키워드
고속철도터널
수직갱
압력파
전산유체해석(CFD)
압력완화
References
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Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 15
  • No :6
  • Pages :559-570
  • Received Date : 2013-09-24
  • Revised Date : 2013-09-30
  • Accepted Date : 2013-10-10
  • DOI :https://doi.org/10.9711/KTAJ.2013.15.6.559
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