The effect of a risk factor on quantitative risk assessment in railway tunnel

Quantitative risk assessment (QRA) of railway is to create a variety of scenario and to quantify the degree of risk by a result of the product of accident frequency and accident. Quantitative risk Assessment is affected by various factors such as tunnel specifications, characteristics of the fire, and relation of smoke control and evacuation direction. So in this study, it is conducted that how the way of smoke control and the relation of smoke control and evacuation direction affect quantitative risk assessment with variables (the tunnel length (2, 3, 4, 5, 6 km) and the slope (5, 15, 25‰)). As the result, in a train fire at the double track tunnel (Area = 97 m2), it is most efficient to evacuate to the opposite direction of smoke control regardless of the location of train in train fire. In addition, under the same condition, index risk in mechanical ventilation up to 1/10.

keywords: 철도터널, 정량적 위험도 평가, 제연과 대피방향, Railway tunnel, Quantitative risk assesment, Smoke control & evacuation direction

Reference

1. IES. (2004), “SIMULEX User Mannual”, UK.

2. Yoo, J.O., Nam, C.H., Jo, H.J., Kim, J.W. (2010), “A study on quantitative risk assessment for railway tunnel fire”, Tunneling Technology, Vol. 12, No. 4.

3. Korea Transportation Safety Authority. (2013), “Railway accident statistics”, South Korea.

4. Ministry of Land. (2013), “Railway facilities Safety Technical standards”, South Korea.

5. SFPE. (2003), “Emergency movement”, Chapter 3-14.

6. Kees Both. (2004), “Present-day design fire scenarios and comparison with test results and real fires:structures & equipment.”, 1st Int. Sym. Proc. Safe &Reliable Tunnels. Innovative European Achievements, Praque, p. 73.

7. Tunnelling and Underground Space Association. (2009), “Ho-nam railway vehicle fire intensity and quantitative risk assessment (QRA)”, South Korea.

8. Korea Railroad Research Institute. (2014), “Quantitative risk assessment manual draft”, South Korea.

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Article Contents

Vol.17 No.2

The effect of a risk factor on quantitative risk assessment in railway tunnel

Abstract

Reference

(사)한국터널지하공간학회