• 제목/요약/키워드: the safety assessment

검색결과 5,521건 처리시간 0.044초

폐밀봉선원 처분시스템 예비 폐쇄후 안전성평가 (Preliminary Post-closure Safety Assessment of Disposal System for Disused Sealed Radioactive Source)

  • 이승희;김주열
    • 한국지하수토양환경학회지:지하수토양환경
    • /
    • 제22권4호
    • /
    • pp.33-48
    • /
    • 2017
  • An optimum disposal plan of disused sealed radioactive sources (DSRSs) should be established to ensure long-term disposal safety at the low- and intermediate-level radioactive waste (LILW) disposal facility in Gyeongju. In this study, an optimum disposal system was suggested and preliminary post-closure safety assessment was performed. The DSRSs disposal system was composed of a rock cavern and near surface disposal facilities at the Gyeongju LILW disposal facility. The assessment was conducted using GoldSim program, and probabilistic assessment and sensitivity analysis were implemented to evaluate the uncertainties in the input parameters of natural barriers. Deterministic and probabilistic calculations indicated that the maximum dose was below the regulatory limits ($0.1mSvyr^{-1}$ for the normal scenario, $1mSvyr^{-1}$ for the well scenario). It was concluded that the DSRSs disposal system would maintain environmental safety over a long-time. Moreover, the partition coefficient of Np in host rock, Darcy velocity in host rock, and density of the host rock were the most sensitive parameters in predicting exposure dose in the safety assessment.

연근해어선의 안전관리 위험성평가 인자 및 지표개발 (Development of the Safety Management Risk Assessment Factors and Indicators for Coastal/Offshore Fishing Vessels)

  • 송병화;김철승
    • 해양환경안전학회지
    • /
    • 제27권6호
    • /
    • pp.783-788
    • /
    • 2021
  • 정부(해양수산부) 및 관계기관에서는 안전관리 취약선박의 해양안전 증진을 위한 많은 정책을 시행하고 있으나, 선박의 안전관리에 대한 위험성평가 부재로 각 제도의 효과성에 다소 아쉬움이 확인되었다. 선박의 위험성평가에 대한 국내 선행연구는 대부분 개별적 해양사고 위험성에 대한 단편적 위험성만을 취급하고 있어 포괄적 해양사고 위험성평가를 위한 새로운 방식이 필요하다. 선박의 안전관리에 대한 포괄적 위험성평가 적용사례로 항만국통제와 노르웨이 해사국의 점검대상 선정방법이 있다. 본 연구에서는 국내 해양사고 및 등록현황의 높은 비중을 차지하고 있는 연근해어선을 대상으로 포괄적 선박안전관리 위험성평가를 위한 지표를 개발하고 적용하였다. 그 결과, 각 선박별 위험성을 계량적 수치로 확인하였고, 개별적 안전관리 취약요소의 순위를 식별하였다.

건설업체 자율안전관리 능력제고 방안 (Improving Self-control Safety & Management Ability of Construction Contractors)

  • 이송;손기상;최원일;오태상;채점식
    • 한국안전학회지
    • /
    • 제15권4호
    • /
    • pp.112-118
    • /
    • 2000
  • This paper is resulted from the research to activate Self-control Safety Management system that adopted to improve an assessment system for Hazard Prevention Plan. And members of company, university and research institute have jointly participated in the research. First, it is investigated that introduced background and processing method with existing practical data & materials references in order to understand what domestic Self-control Safety Management system will be available for. And general construction company at site have their ability to assess Hazard Prevention Plan by mailing questionnaire to on thousand site, visits, and interviews. Also, It is investigated how much they have the assessment ability. It is selected to do a questionnaire survey for the status of self-regulatory safety assessment ability of the designated self-regulatory companies in order to produce and enhance the self-regulatory assessment ability and the necessity of Self-control Safety Management system. Finally, it is selected to do a questionnaire survey for fixing and the enhance Self-control Safety Management system of general construction contractors.

  • PDF

국내 소비자 제품의 위해성 평가 모델 개발을 위한 해외 평가 모델 선행조사 및 사례 비교 (Prior Research and Case Study on Overseas Assessment Models for Developing Risk Assessment Model on Domestic Customer Products)

  • 한신호;이종민;김형기;서금희
    • 한국신뢰성학회지:신뢰성응용연구
    • /
    • 제15권3호
    • /
    • pp.207-215
    • /
    • 2015
  • Safety' can be used in a variety of ways and may also have different meanings when used in theoretical field and routinely used. In this paper, the 'safety' means that human injury, fire or physical accident condition does not occur while used by the end-user. The meaning of safety may be different by era and culture. Even in contemporary era, the meaning can be used differently by country, region and culture. As the rights of consumers are increasingly reinforced, we can expect the acceptable risk or safety level can rise higher. In this paper, the R-map of Japan and the European risk assessment guidelines (RAPEX) were reviewed considering domestic incidents database status and its applicability. Because it is difficult to make a model based on a R-map, a revised model was developed mainly based on European Assessment Model with a combination of the important characteristics of Japan model R-map. Also utilizing this revised model, the availability as a new risk assessment model was confirmed by comparing the test results for the same scenarios to the other risk assessment model (RAPEX/RAG).

농업토목 수리구조물 안전도평가 시스템 개발에 관한 연구 (Development of Safety Assessment System for Agricultural Irrigation Structures)

  • 조효남;김성훈;최영민;이승재
    • 전산구조공학
    • /
    • 제6권1호
    • /
    • pp.107-115
    • /
    • 1993
  • 본 연구는 개인용 컴퓨터를 이용하여 농업토목 수리구조물의 안전도평가시스템을 개발하는데 목적이 있다. 본 시스템은 상호 유기적인 관계를 가지고 있는 데이타베이스, 구조해석, 안전도분석/평가, 입출력도식화의 4가지 서브시스템으로 구성되었으며, 사용자 위주의 풀다운식 메뉴드라이빙 형태로 개발되었다. 노후손상된 구조물의 안전도평가에 사용된 주요 알고리즘은 신뢰성이론에 의한 합리적 내하력 평가방법에 기초하였다. 본 연구에서 개발된 안전도평가 시스템은 노후손상된 농업토목 수리구조물의 안전도 및 내하력 평가를 위한 효율적인 수단으로서 실무에서 널리 사용될 수 있을 것이라고 사료된다.

  • PDF