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Evaluation test of applicability of Compressed Air Foam fire extinguishing system for train fire at rescue station in Subsea tunnel

해저터널 구난역 열차화재시 압축공기포(Compressed Air Foam) 소화설비의 적용성 평가 실험

  • Park, Byoung-Jik (Korea Institute of Civil Engineering and Building Technology) ;
  • Shin, Hyun-Jun (Korea Institute of Civil Engineering and Building Technology) ;
  • Yoo, Yong-Ho (Korea Institute of Civil Engineering and Building Technology) ;
  • Park, Jin-Ouk (Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Hwi-Seong (Korea Institute of Civil Engineering and Building Technology)
  • Received : 2016.08.17
  • Accepted : 2016.09.09
  • Published : 2016.09.30

Abstract

Recently, a mega project such as Korea-China or Korea-Japan undersea tunnel project has been emerged for detail discussion and the interest in undersea tunnel is on the rise. More severe damage by train fire is expected in undersea tunnel comparing to ground tunnel and thus the study on more efficient fire extinguishing system, besides existing disaster prevention design is underway. To that end, a full-scale fire tests using CAF fire extinguishing system which has been developed by modifying traditional foam fire extinguishing system for fire suppression at rescue station in timely manner were conducted over 7 times. The test was conducted after setting the rescue station in virtual tunnel with a car of KTX. As a result of using compressed air foam directly to the fire source, 30 liter of Heptane combustibles was extinguished within 1 minutes. Applicability of compressed air foam to train fire at rescue station in undersea tunnel was has been proven and further study is considered required while changing the nozzle angle and location so as to achieve quick and easy extinguishing goal, making use of the advantage of CAF, as well as to reduce the fire water and chemicals required.

최근 한중, 한일 해저터널과 같은 대규모 프로젝트가 구체화되고 있으며, 해저터널에 대한 관심이 높아지고 있다. 해저터널은 일반 지상터널에 비해 열차화재에 따른 대규모 피해가 발생할 수 있으며, 기존의 일반터널 방재설계 이외에도 효율적인 소화방안에 관한 연구가 필요하다. 이에 따라, 본 연구에서는 열차화재를 구난역에서 신속하게 진압하기 위하여, 일반적인 포 소화설비를 개량한 '압축공기포(CAF) 소화설비'를 활용한 실물 화재실험을 7차례 수행하였다. 실험은 가상의 터널에 구난역을 설치하고 KTX 열차의 1 량 규모의 가상열차를 대상으로 실시하였다. 압축공기포를 화원에 직접 분사한 경우에 햅탄(Heptane) 원료 30 L의 가연물을 1분 이내에 소화시켰다. 본 실험 연구를 통하여 해저터널 구난역 열차화재 소화설비에 압축공기 포 소화설비가 적합한지 확인하였으며, 해저터널 외에 일반터널에서도 CAF가 갖는 장점을 활용하여 빠르고 손쉬운 소화가 가능하도록 노즐 각도 및 설치위치 등을 변경하여 소화수와 소화약제를 최소화하기 위하여 추가로 실험 연구를 진행해야 한다고 판단된다.

Keywords

References

  1. Lee, J.W., Lim, W.S., Kim, S.S., Rie, D.H. (2012), "A Study on Fire Extinguishing Performance Evaluation of Compressed Air Foam System", Transactions of Korean institute of fire science and engineering, Vol. 26, No. 5, pp. 73-78.
  2. Lee, J.W., Lim, W.S., Rie, D.H. (2013), "A Study on B Class Fire Extinguishing Performance of Air Ratio in the Compressed Air Foam System", Transactions of Korean institute of fire science and engineering, Vol. 27, No. 6, pp. 8-14.
  3. Yoo, J.O., Kim, J.S., Rie, D.H., Shin, H.J. (2015), "The study on interval calculation of cross passage in undersea tunnel by quantitative risk assesment method", Journal of Korean Tunnelling and Underground Space Association, Vol. 17, No. 3, pp. 249-256. https://doi.org/10.9711/KTAJ.2015.17.3.249
  4. Fire safety criteria of doam fire extinguishing system (NFSC 105) Fire Emergency Management Notice #2012-121 (2012.08.20.).
  5. Baik, Y.S. (2005), "Fire equipment", Hyungseol Publication, pp. 455-519.
  6. Lee, S.H. (2014), "Fire science", Donghwa Technology, pp. 382-388.