• 한국재난정보학회 논문집
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• 제11권4호
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• pp.515-519
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• 2015

'13년 87건, '14년 104건의 화학사고는 인명과 환경에 막대한 피해를 가져왔다. 또한 산업계는 피해처리와 복구에 많은 비용지출을 하였고 기업이미지에 큰 영향을 받았다. 대기 중으로의 빠른 확산과 독성을 갖는 화학사고는 근로자 뿐만 아니라 주변 거주 주민 등에도 위협적인 존재이다. 이러한, 화학사고의 원인을 철저히 분석하기 위해서는 체계적인 조사절차와 신뢰성 있는 결과가 도출되어야 한다. 본 연구를 통해 사고조사를 담당하는 각 기관의 제도를 비교 분석하여 화학사고 현장조사 체계마련 시 기본 자료로 활용이 가능할 것으로 판단된다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2001년도 하계학술대회 논문집
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• pp.207-210
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• 2001

Electrical equipment for railway is always experiencing wear and degradation by mechanical, electrical and environmental stress in service and the fault or the accident of high voltage main circuit directly causes operation interruption. Particularly propulsion drive of high speed switching inverter takes the form of specific degradation mechanism such as fast rising transient surge, reflective overvoltage and harmonic stress, and it is known that it threatens the long life and the reliability of electrical equipment. In this paper, statistics of fault and accident on main electrical equipment for railway are presented and also insulation degradation mechanism, which governs end life of electrical device, is analyzed. Finally the method of fault respondence and reliability improvement on the main electrical equipments will be reviewed in order to prevent operation interruption.

• 한국안전학회지
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• 제36권4호
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• pp.62-70
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• 2021

Representative systematic accident analysis methods proposed so far include AcciMap, STAMP, and FRAM. This study used these three techniques to analyze a fire accident case that occurred during routine manufacturing work in a domestic chemical plant and compared the results. The methods used different approaches to identify the cause of the accident, but they all highlighted similar causal factors. In addition to technical issues, the three accident analysis methods identified factors related to safety education, risk assessment, and the operation of the process safety management system, as well as management philosophy and company culture as problems. The AcciMap and STAMP models play complementary roles because they use hierarchical structures, while FRAM is more effective in analyses centered on human and organizational functions than in technical analyses.

• KIEAE Journal
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• 제7권6호
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• pp.83-90
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• 2007

A mobile crane has been more frequently used to deal with the increased capital-intensive projects in line with the economic growth, but the operation is still heavily dependent on personal experience in the past, resulting in severe overturn accidents that cause the loss of lives and damage to the properties. A crane shall be installed in a systematic manner that proved to be safe in engineering aspect, and should the installation and operation be blindly dependent on experience alone, it would apparently cause a great risk. Particularly the mobile crane, among others, frequently causes a severe overturn accident due to poor ground-fixing device. The study therefore focused on fixing system of mobile crane and the outcome is highly expected to make a great commitment to selecting the optimal type of crane for the project as well as to securing the safety during construction.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 춘계학술대회 논문집 전기설비전문위원
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• pp.315-317
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• 2009

When happen the electrical facilities accident, the one's diagnosis system of fault cause was constructed by FMEA method. From the verification of system, the one's diagnosis system agreed well with result that analyzed actual stale. Thus, the system is judged to be used effectively examine for accident cause of electrical facilities.

• 한국화재소방학회논문지
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• 제31권1호
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• pp.81-88
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• 2017

본 연구에서는 화학사고의 인명사고 특성을 분석하기 위해 화학사고의 유형, 사고 발생 장소, 사고 사업장 규모, 사고 물질 등에 따른 화학사고, 인명사고, 사망자, 부상자 등을 조사하여 분석하였다. 화학사고로 인한 인명사고 및 인명피해 현황을 살펴보면 "화학물질관리법" 시행 이전인 2013년과 2014년에 인명사고는 각각 16건, 17건이었고, 법 시행 이후인 2015년과 2016년에는 각각 46건, 23건으로 조사되었다. 전체 화학사고와 인명사고 모두 유 누출에 의한 사고가 가장 많았고, 인명피해 현황 또한 가장 많았다. 화학사고 발생 장소에 따른 사고 및 인명피해 현황을 조사한 결과 사업장에서 모든 조사항목이 가장 높은 수치를 나타냈다. 사고다발 상위 10개 물질을 조사한 결과 폐산을 제외한 9개 물질이 모두 유해화학물질이면서 사고대비물질과 유독물에 포함되는 물질이었다. 따라서, 유 누출 사고, 사고에 취약한 사업장, 위험 화학물질 등에 대한 관리를 강화시킬 필요가 있다.

• Nuclear Engineering and Technology
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• 제44권5호
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• pp.437-452
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• 2012

The Tohoku earthquake (Mw9.0) occurred on March 11, 2011 and caused a large tsunami. The Fukushima Dai-ichi NPP (F1-NPP) were overwhelmed by the tsunami and core damage occurred. This paper describes the overview of F1-NPP accident and the usability of tsunami PRA at Tohoku earthquake. The paper makes reference to the following current issues: influence on seismic hazard of gigantic aftershocks and triggered earthquakes, concepts for evaluating core damage frequency considering common cause failure with correlation coefficient against seismic event at multi units and sites, and concepts of "seismic-tsunami PSA" considering a combination of seismic motion and tsunami effects.

• Nuclear Engineering and Technology
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• 제54권7호
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• pp.2519-2528
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• 2022

The child pick-up behavior of parents during an emergency can cause heavy traffic congestion and failing to evacuate an affected area successfully. In this study, we analyzed the effect of child pick-up behavior using, as an example, a nuclear power plant accident caused by an earthquake, which is a typical no-notice emergency. A quake was assumed to occur near the Shin-Kori nuclear power plant in Ulsan, Korea, resulting in a nuclear power plant accident. An agent-based dynamic simulation model using VISSIM was employed to conduct sensitivity analyses with different child pick-up rates. The results confirmed that parents are a major cause of congestion and a vulnerable class in an emergency evacuation. The child pick-up behavior caused significant traffic congestion, and parents who pick up their children showed a higher evacuation failure rate.

• 스마트미디어저널
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• 제4권1호
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• pp.39-43
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• 2015

차량용 블랙박스는 사고 순간의 영상, 시간, 충격량 등의 정보를 기록하여 사고발생 시 원인을 규명하기 위한 용도로 사용되고 있다. 기존의 시스템은 사고 후에 원인을 분석하기 때문에 사고를 미연에 방지할 수 없는 단점이 있다. 최근에는 기존의 기능과 더붙어 미연에 사고를 예방할 수 있는 사고예방이 가능한 지능형 블랙박스가 연구되고 있다. 본 논문에서는 주차 시 발생할 수 있는 도난, 절도, 물피도주 등의 사고를 미연에 방지할 수 있는 사고예방 알고리즘을 제안한다. 제안한 알고리즘은 이동객체가 차량에 접근함에 따라 객체인식, 얼굴검출 및 경고기능을 제공한다. 실험 결과, 제안한 방법은 다양한 실험 조건에서 이동객체가 접근함에 따른 위험 레벨별 객체인식, 얼굴검출 및 경고기능을 제공함으로써 사고예방이 가능함을 확인했다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2001년도 추계학술대회 논문집
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• pp.205-210
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• 2001

This paper uses a dynamic sled test approach to understand the effects of impact speed on the risk of occupant in KHST. The sled impact tests simulate a predefined accident scenarios. This study shows the effect of relative velocity between occupant and struck vehicle while occupant is impacted to a front seat's seatback. Although, base on the current accident scenarios, KHST is performed well enough to protect average adult male occupants. However, Results from the tests indicate small size occupant or higher impact speed may cause sever neck and femur injuries.