• Title/Summary/Keyword: 위험성

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A Study on the Fire Risk Assesment of Solvent-based Paints (유성페인트의 화재 위험성평가에 관한 연구)

  • Lee, Bong-Woo;Kwon, Seong-Pil
    • Fire Science and Engineering
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    • v.31 no.6
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    • pp.1-7
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    • 2017
  • Currently, flammable liquids account for more than 87 wt% of the hazardous materials in circulation in Korea, and paint products are the most commonly used mixed hazardous materials. Therefore, one of the most urgent and important issues is that we have to secure the safety for manufacturing, storage and transport of paint products. In this study we investigated and analyzed the domestic hazardous materials safety management method, the international GHS test method and so forth. We tested risks for a variety of oil paints and found a relation between the results. Furthermore, the risk test method and criteria adapted for domestic situation was presented. Paints were classified as hazardous or non-hazardous according to the results of the flash point test, the amount of flammable liquid or the UN-combustion persistence test. It was revealed from the test results of 6 kind of oil-based paints using different resins that they were hazardous materials with very high risks and belonged to the Category 1 or the Category 2.

Risk Assessment of Marine LPG Engine Using Fuzzy Multicriteria HAZOP Technique (퍼지 다기준 HAZOP 기법을 이용한 해상용 LPG 엔진의 위험성 평가)

  • Siljung Yeo
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.29 no.2
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    • pp.238-247
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    • 2023
  • Liquefied petroleum gas (LPG) is an attractive fuel for ships considering its current technology and economic viability. However, safety guidelines for LPG-fueled ships are still under development, and there have been no cases of applying LPG propulsion systems to small and medium-sized ships in Korea. The purpose of this study was to perform an objective risk assessment for the first marine LPG engine system and propose safe operational standards. First, hazard and operability (HAZOP) analysis was used to divide the engine system into five nodes, and 58 hazards were identified. To compensate for the subjectivity of qualitative evaluation using HAZOP analysis, fuzzy set theory was used, and additional risk factors, such as detectability and sensitivity, were included to compare the relative weights of the risk factors using a fuzzy analytical hierarchy process. As a result, among the five risk factors, those with a major impact on risk were determined to be the frequency and severity. Finally, the fuzzy technique for order of preference by similarity to ideal solution (TOPSIS) was applied to select the risk rank more precisely by considering the weights of the risk factors. The risk level was divided into 47 groups, and the major hazard during the operation of the engine system was found through the analysis to be gas leakage during maintenance of the LPG supply line. The technique proposed can be applied to various facilities, such as LPG supply systems, and can be utilized as a standard procedure for risk assessment in developing safety standards for LPG-powered ships.

Methodology of Analyze the Risk Using Method of Determinated Quantity (정량적 방법을 이용한 위험분석 방법론 연구)

  • Park, Joong-Gil
    • The KIPS Transactions:PartC
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    • v.13C no.7 s.110
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    • pp.851-858
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    • 2006
  • The risk analysis's aim is analyze the risk for the asset of organization with asset assessment, vulnerability assessment, threat assessment. existing TTA risk analysis methodology model propose to overall flow, but can not propose to detail behavior or each level. That is, step of risk analysis is insufficient in classification of threat and detail proposal of considered the risk with classified threat. So this paper propose that analysis and evaluate the vulnerability and threat assessment with determinated quantity. this paper consider current national information system and threat of environment and technology. So can estimate the risk with determinated quantity. Finally, analyze the asset risk of organization.

Analysis of Mountain Trail Hazard areas Based on Watershed Scale (유역단위 산지탐방로 위험지역 분석)

  • Oh, Chae Yeon;Jun, Kye Won
    • Proceedings of the Korea Water Resources Association Conference
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    • 2015.05a
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    • pp.280-280
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    • 2015
  • 최근 봄철을 맞아 산을 찾는 등산객의 수가 증가하고 있으며 그에 따른 안전사고 발생 위험도 높아지고 있다. 산지재해 중 가장 많이 발생하고 있는 산사태나 토석류는 산을 찾는 등산객에게도 많은 안전사고를 발생시키고 있으나 아직까지 탐방로의 위험성과 안전에 대한 연구는 미흡한 실정이다. 본 연구에서는 설악산 국립공원 탐방로를 중심으로 재해발생 이력조사 및 현장조사를 실시하고 분석에 필요한 공간 데이터를 구축하였으며 설악산 전체 탐방로를 유역단위로 분할하여 위험성 분석을 실시하였다. 전체 탐방로를 대상으로 GIS기반의 확률론적 분석과 SINMAP을 이용하여 위험성 평가를 수행하였으며 그 결과 일부 탐방로 구간에서 위험성이 높게 나타났다. 탐방로 위험구간을 유역별로 나누어 분석함으로써 탐방로 전체에서 유역단위로 위험요소를 판단하는 자료로 활용될 수 있을 것으로 판단된다.

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컨테이너 터미널 안전관리 개선방안에 관한 연구 - 위험성 평가 및 보우타이 기법 이용 -

  • Park, Seong-Hun;Yu, Ji-Won;Kim, Yul-Seong;Jeong, Gwon-Jae
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2018.11a
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    • pp.231-233
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    • 2018
  • 부산항은 "한진 해운 파산"과 같은 불확실한 해운 상황에도 불구하고 2017년도 2,000만 TEU 이상 물동량을 처리하였다. 선박 생산성 또한 높은 수준으로 세계에서 가장 바쁜 터미널 6위를 달성하였다. 우리는 이러한 높은 수준을 유지하기 위하여 고객에게 생산성뿐만 아니라 고품질의 안전성 또한 제공하여야한다. 부산항 'A' 터미널에서 발생한 지난 3년간의 사고 데이터를 분석하여 어떤 장비가 가장 많이 사고를 발생하였고 어떤 위험점이 가장 높은지를 위험성 평가기법으로 알아보고, 이러한 사고를 미연에 방지하기 위한 방안을 보우타이 기법을 활용하여 제시하고자 한다. 실증자료를 분석한 결과 터미널 내의 이동장비 중 야드 트랙터의 충돌사고가 가장 높은 것으로 나타났다. 안전한 부산항을 만들기 위하여 우리는 가장 먼저 야드 트랙터의 충돌사고 예방법 (Control measure)과 사고 발생 시 대처방안 (Recovery measure)을 철저히 준비하여 사고를 미연에 방지하여야 할 것이다. 본 연구의 결과는 관련 실무에 다양한 시사점을 제공하였다.

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A Study on Reliability Analysis and Quantitative Risk Analysis for Liquefied Petroleum Gas Station (LPG 충전시설에 대한 신뢰도 분석과 정량적 위험성 분석에 관한 연구)

  • Kim In-Won;Jin Sang-Hwa;Kim Tea-Woo;Kim In-Tae;Yeo Yeong-Koo
    • Journal of the Korean Institute of Gas
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    • v.5 no.4 s.16
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    • pp.40-48
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    • 2001
  • For a Liquified Petroleum Gas(LPG) station, the reliability analysis, such as Fussell-Vesely importance, risk decrease factor and risk increase factor, was carried out and the risk ranks of events were determined. In order to confirm the degree of the risks identified in the reliability analysis, the quantitative risk analysis was done for the equipments which had the large values of risk ranks. As a result of the importance analysis for the LPG station, the external event was identified as the most riskful event. The defect of construction structure and the pipe corrosion were riskful as well. The result of quantitative risk analysis showed that the length of 46.3 meters were estimated to damage the process equipments by the thermal flux from the catastrophic rupture of storage tank in Boiling Liquid Expanding Vapor Explosion.

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A Study on the Application of Records Management Standards to Risk Management Framework (위험관리체계의 기록관리표준 적용방안 연구)

  • Jeong, Ki-Ae;Lee, Jeong-Hoon;Nam, Young-Joon
    • Journal of Korean Society of Archives and Records Management
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    • v.11 no.2
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    • pp.189-215
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    • 2011
  • Owing to changing work environment and increasing uncertainty, risk management in records management area is becoming more important to secure work legitimacy and to increase the value of information for future. While risk factors in traditional records management were mainly focused on the preservation function, those in current records management were directly coupled with those of overall work processes which produce, distribute, and utilize records because information technologies make the relationship between works and records closer. This study proposes a set of risk management factors and strategies in records management based on the overall risk management framework of ISO 31000. Moreover, ARMA's works areas and NIST's systems areas were applied to form the risk management processes in records management, and ISO's records management standards were used to suggest the checklists for the processes in both areas, especially with ISO TR 26122 for work processes, and ISO 16175-3 for the context of records.

Study on key safety hazards and risk assessments for small section utility tunnel in urban areas (도심지 소단면 터널식 공동구의 핵심 안전 위험요소 및 위험성 평가 연구)

  • Seong, Joo-Hyun;Jung, Min-Hyung
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.20 no.6
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    • pp.931-946
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    • 2018
  • In line with the increased usability of utility pipe conduits in urban areas, construction and R&D activities of utility tunnel, incorporated with the shield TBM method, are actively under way. The utility tunnels are installed through underground excavation, and thus are relatively weak in terms of construction safety. However, hazards associated with the utility tunnel construction have not been properly identified, despite the introduction of a policy to the 'Design for Safety' for the purpose of reducing accident rates in the construction industry. Therefore, in this study, following the derivation of hazards associated with utility tunnel, these hazards were then used as the basis to uncover key safety hazards requiring extensive management in a field, which were then used to conduct a risk assessment having applied the matrix method so that the results can be utilized in risk assessment during the stages of utility tunnel planning, design, and construction, while also serving as a data reference.

Risk Assessment for Disaster Reduction in Small-Scale Construction Sites (소규모 건축현장 재해감소를 위한 위험성평가 방안)

  • Choi, Hyun-Jun
    • Journal of the Society of Disaster Information
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    • v.18 no.2
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    • pp.395-404
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    • 2022
  • Purpose: Small-scale construction sites have insufficient systematic safety management activities, and due to the characteristics of the construction site, the production structure is complex due to external environmental factors, and the risk of construction equipment is very high. We would like to propose a checklist method among practical risk assessment techniques that can derive risk factors for disaster prevention at small construction sites and reduce disasters. Method: Risk factors were derived by analyzing literature research and disaster cases, and detailed work for a checklist of risk assessment suitable for small-scale construction sites was classified based on risk factor items. Result: Hazard factors were divided into 6 major categories, and 29 detailed types of work were classified based on actual work types, and 80 detailed works were classified accordingly. Conclusion: By arranging risk factors suitable for small-scale construction sites according to the classification system, the lack of expertise in the construction site can be supplemented, and risk factors can be derived more easily and disaster reduction can be expected through establishment of safety measures.