한국건설관리학회논문집 (Korean Journal of Construction Engineering and Management)

  • 제21권3호
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  • Pages.28-38
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  • 2020
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  • 2005-6095(pISSN)
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  • 2465-9703(eISSN)
한국건설관리학회 (Korea Institute of Construction Engineering and Management)
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ETA를 활용한 근로자의 불안전한 행동과 떨어짐 사고의 관계

The Relationship between Unsafe Acts and Fall Accident of Workers Using ETA

  • Jeong, Eunbeen (Department of Architectural Engineering, Graduate School, Incheon National University) ;
  • Choi, Jaewook (Department of Architectural Engineering, Graduate School, Incheon National University) ;
  • Lee, Chansik (Department of Civil Engineering, Incheon National University)
  • 투고 : 2020.02.29
  • 심사 : 2020.04.07
  • 발행 : 2020.05.31
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초록

최근 건설구조물의 대형화, 고층화로 인해 고소작업이 증가하며 떨어짐 사고(이하 사고)가 증가하고 있다. 근로자의 불안전한 행동이 산업재해의 주요 원인으로 밝혀지며, 불안전한 행동 예측 및 관리의 필요성이 제기되었다. 이 연구는 건설 현장에서 근로자의 불안전한 행동과 사고의 관계를 확률로 제시하여 불안전한 행동의 개선 효과를 산출하는 것을 목적으로 수행되었다. 재해사례를 분석하여 근로자의 불안전한 행동을 도출하고, 설문조사를 통하여 불안전한 행동으로 인한 사고의 발생 확률(이하 사고 확률)을 산출하였다. 사건수 분석 기법(Event Tree Analysis; ETA)을 활용하여 불안전한 행동의 조합에 따른 최종 사고 확률과 개선 효과를 확인하였다. 불안전한 행동별 사고 확률은 음주 후 작업 수행(95.41%)이 가장 높았고, 장비 및 기계 활용(65.70%)이 가장 낮았다. 불안전한 행동의 조합에 따른 사고 확률은 불안전한 행동을 모두 수행한 경우(13.23%)가 가장 높았고, 불안전한 행동을 수행하지 않은 경우(0.00%)가 가장 낮았다.

The large-scaled and high-rise construction structures in recent years have increased high place work, leading to an increase in falling accidents (hereinafter, "accidents"). The need for prediction and management of unsafe acts of workers at construction sites has been raised as unsafe acts of workers are identified as the main cause of industrial accidents. This research aims at deriving the improvement effect of unsafe acts by presenting the relationship between unsafe acts of workers and accidents at construction sites as a probability. Unsafe acts of workers were derived based on the analysis of accident cases. In addition, surveys were conducted to calculate the probability of occurrence of accidents caused by unsafe acts (hereinafter, 'accident probability'). The Event Tree Analysis (ETA) was utilized to confirm the final probability according to the combination of unsafe acts and improvement effect. The accident probability by unsafe act was found to be the highest for working after drinking (95.41%) and to be the lowest for equipment and machine utilization (65.70%). The accident probability according to a combination of unsafe acts was the highest when all of the unsafe acts were conducted (13.23%) and was the lowest when none of the unsafe acts were conducted (0.00%).

키워드

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