A Study on ventilation characteristics in bidirectional traffic tunnels – with emphasis on the natural ventilation

Hyo Gyu Kim; Yoo-Jung Hong; Yong-Ho Yoo

doi:10.9711/KTAJ.2014.16.6.561

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2014 Vol.16, Issue 6 Preview Page Next Page

A Study on ventilation characteristics in bidirectional traffic tunnels – with emphasis on the natural ventilation 대면통행 터널의 환기특성에 관한 연구 - 자연환기량을 중심으로

30 November 2014. pp. 561-571

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Abstract

The standards of ventilation system for bi-directional tunnel have not been established now. For this reason, with regard to the bi-directional tunnel below 1km, some problems have been appeared in ventilation capacity designing and in determiningwhether the mechanical ventilation system is needed or not for each case. In this study, we examine the characteristics of natural ventilations, analyze ongoing ventilation design casesfor bi-directional tunnels and classifythose cases into two groups. This study is carried out about the capability of using natural ventilating system by calculation of reasonable ventilation capacity in bi-directional tunnel and review of relationship between natural wind speed (Vr*) and required speed(Vreq). This paper aims at providing a basis data for bi-directional tunnel ventilation design standards.

Keywords

Bi-directional traffic tunnel

Ventilation design

Natural ventilation rate

Required velocity

Natural velocity

양방향(대면통행) 터널에 대한 자연환기에 대한 결정기준 및 제트팬 용량 검토기준이 명확하게 정립되지 못한 이유로 1km미만의 터널에 대한 기계환기 여부 및 용량산정에 있어 혼선이 나타나고 있다. 이에 본 연구에서는 자연환기량의 특성을 살펴보고, 최근 진행중인 대면통행 터널의 환기설계 기법을 크게 2가지로 분류하여 분석하였다. 또한 본 연구에서는 양방향 터널에서의 합리적인 환기용량 산출과 자연환기량에 기초한 자연풍속(Vr*)과 소요풍속(Vreq)과의 관계 검토를 통해 자연환기 방식의 적용 가능성에 대한 연구를 수행하였으며, 향후 양방향 터널의 환기기준 수립에 대한 기초자료 제공을 목적으로 하고 있다.

키워드

대면통행 터널

환기설계

자연환기량

소요풍속

자연풍속

References

1.Kim, H.G., Song, S.H., Lee, C.W. (2005), “A study on ventilation characteristics in bidirectional traffic tunnels - focused on the effects of unequal vehicular speed”, Journal of Korean Tunnelling and Underground Space Association, Vol. 7, No. 1, pp. 13-25.

2.Japan Road Association, (2008), “Technology guidelines on road tunnel(ventilation) explanation, pp. 262-263.

3.Ministry of Land, Infrastructure and Transport (2009), “Basic research and design of disaster facilities for maintenance in road tunnels”, pp. 37-79.

4.Ministry of Land, Infrastructure and Transport (2011), “Road design manual (617. Ventilation)”, pp. 617-39-617-40.

5.Korea Expressway Corporation (2011), “Highway tunnel ventilation design criteria”, pp. 38-50.

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 : 16
No :6
Pages :561-571
Received Date : 2014-10-28
Revised Date : 2014-11-07
Accepted Date : 2014-11-11
DOI :https://doi.org/10.9711/KTAJ.2014.16.6.561

Journal of Korean Tunnelling and Underground Space Association ISSN:2233-8292(Print) 2287-4747(Online) 한국터널지하공간학회 논문집

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