• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2005.05a
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• pp.112-118
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• 2005

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2011.04a
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• pp.361-366
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• 2011

본 연구에서는 무인운영이 예정되어 있는 경량철도 지하역사 화재 시 안전대책을 강구하기 위하여 다양한 시나리오의 화재상황을 모사하여 FDS 사용코드를 이용해 화재유동현상을 분석하였다. 해석경계조건은 전동차 내부공간을 포함한 지하 3개 층과 설계에 반영된 환기설비를 적용하였으며, 약 500만 개의 격자를 34개 블록으로 나누어 계산하였다. 비상탈출 동선을 파악하여 주요 위치에서 피난경로상의 각 층 바닥으로 부터 1 m 높이의 한계온도와 연기층의 도달시간을 시나리오 별로 분석하여 보았다.

• Journal of Korean Tunnelling and Underground Space Association
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• v.12 no.4
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• pp.321-328
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• 2010

The study performed an actual fire experiment in order to propose the heat release rate of automobile that is the most basic architectural element for the fire safety design in a tunnel, whose importance has been recognized as the underground traffic tunnels are planned in Korean metropolitan cities. The heat release rate of a van is measured by the large scale calorimeter, in which the law of oxygen consumption is applied, and the fire expansion characteristics in a tunnel by placing two passenger cars nearby one another in the tunnel. As the results, the heat release rate of the van was revealed to be 5.9 MW, and carbon monoxide was emitted 482 ppm at a maximum. In case of two passenger car experiment for the fire expansion characteristics, the adjacent car was ignited about 3 minutes 30 seconds after the fire occurrence, and the complete fire was developed after 15 minutes. The maximum heat release was 9 MW. The results from the actual fire experiment can be an important input data for future quantitative analysis as well as an element applicable to a tunnel disaster preventive equipment design.

• Journal of Korean Tunnelling and Underground Space Association
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• v.24 no.6
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• pp.539-552
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• 2022

In the case of train stations, due to the specificity of underground spaces with limited smoke emissions, if appropriate removal equipment is not equipped, the damage caused by fire smoke may increase in the event of a fire. As a result, the need for measures to ensure the safety of evacuation of underground stations has been highlighted, and research for safe evacuation of platform users in case of fire is continuously being conducted at home and abroad. However, although the smoke removal area is currently divided by smoke boundary walls and platform screen doors (PSD) and installed in the train platform, standards for smoke removal methods (air supply or exhaust) for each fire removal area, that is, smoke removal mode, are not presented. In this study, fire analysis and evacuation analysis were performed to estimate the number of deaths and to derive F/N guidance in order to quantitatively evaluate the fire risk according to the fire station fire, and the total risk was the lowest in the case of fire area exhaust and supply to adjacent areas.

• Tunnel and Underground Space
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• v.15 no.1 s.54
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• pp.9-21
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• 2005

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2007.11a
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• pp.73-78
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• 2007

• Korean Security Journal
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• no.18
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• pp.1-20
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• 2009

Nowadays most nations around the world including Korea have experienced absolute shortages of available urban space. To solve various problems of the city, each nation constantly tends to extend the underground space. However there is a serious problem in making use of the underground space. Especially new terrorism coming into existence after 9.11 terror turns into the so-called ‘soft target’ which has something to do with public transportation facilities available to most people. Good examples are like these: poisonous gas attacks in Tokyo subway in 1995, Daegu subway station fire in 2003, serial bomb blast of London subway in 2005. In spite of being a concern on incidents related to the underground space it is inevitable to utilize the underground space and the tendency is growing. But Korea lags badly behind in foreign countries in this field and so seeking measures is urgently needed. Therefore the aim of this study is to note visible damages stemmed from the domestic and foreign underground space and propose more effective and adequate measures. Safety measures of terrorism are associated to minimize damage out of terrorism and they are as follows. In the first place, preparing protective equipment for saving a life from fire attacks and poisonous gas is needed urgently. In the second place, counterpart management on the spot and systematic security training should be established in order to minimize injury. In the third place, fire escapes must be provided for a rapid evacuation of potential unspecified individuals. In the fourth place, building up a network of related institutions is required for a systematic omnidirectional counterpart. Finally the Korean government ought to take fast and appropriate actions for the injured and bereaved family of the terror incident.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2009.04a
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• pp.67-73
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• 2009

최근 건축물은 초고층화 대형화 지하심층화 되어가고 있다. 이러한 건축물의 성능적인 피난안전성을 확보하기 위한 대책으로서 성능설계, 화재영향평가, 초고층 및 지하연계 방재관련 특별법 등 많은 제도가 시행되지만 구체적인 방법론이 미비한 실정이다. 따라서 본 연구는 성능적인 피난안전성을 확보하기 위하여 피난행동 중 수직적인 피난속도식을 제안하기 위하여 지하공간의 계단을 선정하여 관찰하였다.

• Journal of Korean Tunnelling and Underground Space Association
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• v.23 no.6
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• pp.503-516
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• 2021

Autonomous fire detection and suppression system requires advanced technology for complex detection technology and injection/control technology for accurate hitting by fire location. Also, foam spraying should be included to respond to oil fires. However, when a single spray monitor is used in common, water and foam spray properties appear different, so for accurate fire suppression, research on the spray trajectory and distance will be required. In this study, experimental studies and numerical analysis studies were combined to analyze the foam spray characteristics through the spray monitor developed for the establishment of an autonomous fire extinguishing system. For flow analysis of foam injection, modeling was performed using OpenFOAM analysis software, and the commonly used foaming agent (Aqueous Film-Forming Foam) was applied for foam properties. The injection distance analysis was performed according to the injection pressure and the injection angle according to the form of the foam, and at the same time, the results were verified and presented through the injection experiment.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2012.04a
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• pp.85-88
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• 2012

본 연구는 지하철 객실 화재시 배출가스나 연기에 의한 사망사고에 대해서 FDS(ver. 5.0) 사용코드를 이용해 객실내 화재의 유동현상을 검토한다. 시뮬레이션 모델로 인천메트로 송도연장선을 기준 모델로 설정하였으며 객차 화재발생시 측창문의 개방개소에 따른 배연능력을 검증하기 위하여 측창문 개방조건에 따른 배연특성을 시뮬레이션 하여 인체의 유해성 여부에 따른 위험성 평가에 대한 결과를 도출하였다. 본 연구결과는 지하철의 성능위주 설계를 적용한 기초자료로 활용됨으로써 지하공간 화재시 인명피해 최소화를 목표로 한다.