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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.16 No.6
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A Study on ventilation characteristics in bidirectional traffic tunnels – with emphasis on the natural ventilation

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2014, v.16 no.6, pp.561-571



& (2014). A Study on ventilation characteristics in bidirectional traffic tunnels – with emphasis on the natural ventilation. (사)한국터널지하공간학회, 16(6), 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
대면통행 터널, 환기설계, 자연환기량, 소요풍속, 자연풍속, Bi-directional traffic tunnel, Ventilation design, Natural ventilation rate, Required velocity, Natural velocity

Reference

1.

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.

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

3.

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

4.

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

5.

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

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