• Title/Summary/Keyword: Fire Incident

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Fire Characteristic Analysis of Multi-Use Hostels by Using CFAST (CFAST를 이용한 다중이용업소 화재특성 분석연구)

  • Ha, Ji-Soo;Yu, Sang-Yeol;Han, Don-Hee;Kim, Tae-Kwon
    • Journal of Advanced Marine Engineering and Technology
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    • v.34 no.2
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    • pp.339-345
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    • 2010
  • This study has purpose of minimizing damage from fire incident as analyzing the fire characteristic about fire incident of multi-use hostels, which is increasing recently. For this, CFAST, a verified analysis program for the fire incident was employed to prove the logicality of the study by comparing with a established result of the research work and working the fire simulation for an apartment house. On the basis of this, the study will help to improve safety of fire by analyzing the fire characteristic of Karaoke and Gosiwon which are typical model of multi-use hostels and by establishing how to deal with the fire incident.

Development of Fire Detection Algorithm for Video Incident Detection System of Double Deck Tunnel (복층터널 영상유고감지시스템의 화재 감지 알고리즘 개발)

  • Kim, Tae-Bok
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.23 no.9
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    • pp.1082-1087
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    • 2019
  • Video Incident Detection System is a detection system for the purpose of detection of an emergency in an unexpected situation such as a pedestrian in a tunnel, a falling object, a stationary vehicle, a reverse run, and a fire(smoke and flame). In recent years, the importance of the city center has been emphasized by the construction of underpasses in great depth underground space. Therefore, in order to apply Video Incident Detection System to a Double Deck Tunnel, it was developed to reflect the design characteristics of the Double Deck Tunnel. and In this paper especially, the fire detection technology, which is not it is difficult to apply to the Double Deck Tunnel environment because it is not supported on existing Video Incident Detection System or has a fail detect, we propose fire detection using color image analysis, silhouette spread, and statistical properties, It is verified through a real fire test in a double deck tunnel test bed environment.

Study on the Improvement Operation of the Incident Command System (긴급구조통제단 운영 개선방안)

  • Chae, Jin;Bae, Young-Hwan
    • Fire Science and Engineering
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    • v.33 no.3
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    • pp.128-137
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    • 2019
  • The aim of this study was to suggest ways to improve the operation of the Incident Command System for an effective disaster response in the event of a major disaster. As a result of the study, at the 5% significance level, which affects the perception of the operation, the significant variables that influence the operation of the Incidence Command System were found to be securing the operating budget, cooperation of the related agencies, disaster resource support, and expert training. The relative influence of the variables on the operation of the Incident Command System was found to be in the order of expert training, cooperation of related organizations, disaster resource support, and securing of the operating budget.

Incident shock and Related Factors in Rescue Workers (구조대원의 사건충격 정도와 관련 요인 분석)

  • Yoo, Eui-Tae;Cho, Sung-Je
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.5
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    • pp.2225-2233
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    • 2013
  • This study was designed to identify the extent of incident shock who are in high risk of post traumatic shock stress, and analyze the related factors that affect the extent of incident shock. The subjects are 415 rescue workers from Seoul Metropolitan Fire & Disaster Headquarters, who are in high frequency of fire outbreaks and rescue mobilization. With a reliability of Cronbach's ${\alpha}$=.975, the results show invasion, avoidance, sleep disorder and emotional paralysis, dissociative symptom, hyper arousal as foremost causes respectively. Moreover, the results imply that the extent of incident shock was higher in people with more age or being married. Also, from the occupational perspective, the number of years as fire fighters, as rescue workers, mobilization and experiences at work in proportion to incident shocks has risen exponentially. It is notable that the groups who alleviate stress by consuming liquors had higher extent of incident shock. In conclusion, to deal with groups in high risk, management system and prevention care programs for incident shocks need to be introduced immediately and put into effect.

Analysis of Fire Characteristics based on the Thickness and Incident Heat Flux of Wood (합판류 목재의 두께별 입사열유속에 따른 연소특성 비교 연구)

  • Hwang, Sun-Woo;Park, Won-Hee;Kim, Chang-Yong
    • Fire Science and Engineering
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    • v.34 no.4
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    • pp.13-21
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    • 2020
  • This study tested the wood used in building interiors; each type had various incident heat fluxes based on their thickness. The combustion characteristics measured were effective heat of combustion, heat release rate peak and arrival time, maximum average rate of heat emission, and piloted ignition temperature. The wood specimens used in the experiment were 4.8 to 18 mm thick. 25, 35, 50, and 60 kW/㎡ were applied to the incident heat flux that the wood specimens were exposed to. The wood specimens tested were two types of medium-density fiberboard (each with a different density), treated red pine, particle board, and plywood. A comprehensive comparison of different fire characteristics was conducted to analyze the fire patterns corresponding to each type of wood in this way, the risk of fire was studied. The risk of fire was particularly high for particle board. The results of quantifying the fire characteristics of the types of wood studied could function as important input data with which to calculate the fire load of composite combustibles.

A Study on Enhancing Institutionalization on the Fire Analysis of the Warehouse at Icheon City (이천 냉동창고 화재분석을 통한 제도개선방안 연구)

  • Jung, Tae-Ho;Park, Sang-Hyun;Kim, Hee-Kyu
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2008.04a
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    • pp.80-84
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    • 2008
  • This research has been carried out in order to provide countermeasure plans, fire prevention, improving institutional plans through analyzing accidental causes and investigating the situation of damage from the fire incident of the cold storage at Icheon. By the analysis of the incident, which is organized the process; for incidence, firstly a field investigation, next the overview of related laws, finally the analysis of problems and deducting suggestions, it was possible to find out the causes of casualties. We also suggested improving plans through finding out several problems such as safety management system and safety regulations, the permit on the completion of the cold storage and the completion examination of fire facilities as institutional problems and fireproof construction and the selection of finishing materials.

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A Study on the Improvement of Evacuation Measures through the Analysis of Fire Incident in the Facility of People Vulnerable to Disaster (재난약자시설의 화재사례 분석을 통한 피난대책 개선에 관한 연구)

  • Jin, Seung-Hyeon;Kim, Hye-Won;Lee, Byeong-Heun;Kwon, Young-Jin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2018.05a
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    • pp.78-79
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    • 2018
  • The facilities of domestic elderly people are getting higher in the facility due to the rapid increase of the elderly population. Elderly people ability to evacuate the facility such as cognition and walking ability is very low. Therefore, it is necessary to secure the safety of evacuation in case of fire, but the evacuation safety measures in case of domestic fire accidents are insufficient. This study is to identify the problems of the safety of evacuation through the fire case analysis and to propose the measures against it.

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Development of Real-time fire and Smoke Algorithms Using Surveillance Camera in Tunnel Environment (터널 내 감시 카메라 영상을 이용한 실시간 화염 및 연기 탐지 기법의 개발)

  • Lee, Byoung-Moo;Han, Dong-Il
    • Proceedings of the IEEK Conference
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    • 2007.07a
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    • pp.219-220
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    • 2007
  • In this paper, we proposed image processing technique for automatic real time fire and smoke detection in tunnel environment. To avoid the large scale of damage of fire occurred in the tunnel, it is necessary to have a system to minimize and to discover the incident as fast as possible. The fire and smoke detection is different from the forest fire detection as there are elements such as car and tunnel lights and others that are different from the forest environment so that an indigenous algorithm has to be developed. The two algorithms proposed in this paper, are able to detect the exact position, at the earlier stage of incident.

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Condition assessment of fire affected reinforced concrete shear wall building - A case study

  • Mistri, Abhijit;Pa, Robin Davis;Sarkar, Pradip
    • Advances in concrete construction
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    • v.4 no.2
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    • pp.89-105
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    • 2016
  • The post - fire investigation is conducted on a fire-affected reinforced concrete shear wall building to ascertain the level of its strength degradation due to the fire incident. Fire incident took place in a three-storey building made of reinforced concrete shear wall and roof with operating floors made of steel beams and chequered plates. The usage of the building is to handle explosives. Elevated temperature during the fire is estimated to be $350^{\circ}C$ based on visual inspection. Destructive (core extraction) and non-destructive (rebound hammer and ultrasonic pulse velocity) tests are conducted to evaluate the concrete strength. X-ray diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM) are used for analyzing micro structural changes of the concrete due to fire. Tests are conducted for concrete walls and roof slab on both burnt and unburnt locations. The analysis of test results reveals no significant degradation of the building after the fire which signifies that the structure can be used with full expectancy of performance for the remaining service life. This document can be used as a reference for future forensic investigations of similar fire affected concrete structures.