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      • KCI등재

        산업안전관리의 개선방안에 관한 연구

        조주현 한국산업안전학회 1986 한국안전학회지 Vol.1 No.1

        생산위주의 개발도상국 진입으로 산업재해가 크게 증가하는 추세에 있음은 중대한 문제로 되고있다. 산업안전관리는 기술적으로 잘하면 최대 98%까지 예방가능한 분야이다. 안전사고의 원인을 이적 근로자적 측면에서 경영자적 측면에서 분석하고 이를 조화 또는 통제하는 요인으로 관리적, 행정적 요인을 분석하였다. 개선방안은 산업의 고도화, 다양화에 따른 신기술부족, 안전지식 및 교육부족, 그리고 중소기업의 산업안전 보건시설 개선의 미홉등, 이들 직접 원인에 대한 통제 및 조화 수단으로서 법체제, 행정조직을 강화하고 산업안전관리를 민간주도로 추진해나갈 연구 및 예방기관의 육성이 되어야 한다.

      • KCI등재

        구조물의 최적안전지수와 생애주기비용의 상관관계에 관한 연구

        방명석 ( Myung Seok Bang ) 한국안전학회(구 한국산업안전학회) 2014 한국안전학회지 Vol.29 No.6

        본 연구는 구조물의 최적안전수준과 수명기간동안 투자되는 총비용과의 상관관계를 연구하였다. 설계, 건설 및 공용 중 투자되는 총비용을 최소화하면서 최적의 안전수준을 결정하기 위하여 신뢰성해석을 수행하였다. 신뢰성해석에는 설계인자들의 불확실성과 설계 및 공사, 유지관리를 수행하는 인간의 오류 등 인적 불확실성을 확률변수로 고려하였다. 이러한 확률해석을 통한 안전지수와 생애주기비용의 상관관계를 연구하고, 생애주기비용의 분산도에 따른 안전지수의 민감도해석을 통하여 최적의 안전수준을 결정하였다. 해석결과는 이러한 평가방법이 교통시설물에 투자되는 비용을 최소화하면서 최적의 안전수준을 결정할 수 있는 정확하고 유용한 방법임을 보여주었다. This study was intend to develop the optimal design method of suspension bridge by the reliability analysis based on minimization of life cycle cost(LCC). The reliability analysis was performed considering aleatory uncertainties included in the result of numerical analysis. The optimal design was estimated based on life-cycle cost analysis depending on the result of reliability analysis. As the effect of epistemic uncertainty, the safety index (beta), failure probability (pf) and minimum life cycle cost were random variables. The high-level distributions were generated, from which the critical percentile values were obtained for a conservative bridge design through sensitivity assessment.

      • KCI등재

        외부 심사원을 통한 건설업 KOSHA 18001 활용도 개선에 관한 연구

        이진섭 ( Jin Seop Lee ),이동율 ( Dong Yul Lee ),오태근 ( Tae Keun Oh ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.4

        At the end of 2014, ordering organizations, 25 general contractors and 80 specialty contractors were certified by the KOSHA 18001 for the establishment of safety & health management system. However, safety management departments in the certified companies have been disrupted due to the financial difficulty and CEO’s indifference, which has resulted in the cancellation of more than 30% of the certifications. Furthermore, the KOSHA 18001 due to the shortage of internal evaluators in KOSHA and the increase of applications for new certification & the extension of the certification is placed in a difficult situation in the near future. Therefore, it is necessary to enhance the KOSHA 18001 by solutions such as introducing outside evaluators, which is the key point of this study. This study was performed through the questionnaire survey & the interviews with the construction companies, ordering organization and KOSHA 18001 specialists The content is centered on the introduction of external evaluators. As a result, the introduction of external evaluators is necessary through amending certification regulation because only internal evaluators cannot afford to process all the new application and the extension of existing certifications.

      • KCI등재

        유연성을 갖는 콘크리트 표면보호재의 내화학적 특성

        한상훈 ( Sang Hoon Han ),윤주용 ( Ju Yong Yoon ),이병로 ( Byung Ro Lee ),홍기남 ( Ki Nam Hong ) 한국안전학회(구-한국산업안전학회) 2012 한국안전학회지 Vol.27 No.3

        The purpose of this study is evaluate the ability of coating materials developed in order to prevent the durability deterioration of the concrete structure. Neutralization test, freezing and thawing test, and sulfate resistance test were performed in this study. Test results show that the developed coating material is effective against durability deterioration

      • KCI등재

        교내 건설공사로 인한 학습환경 영향요인에 관한 연구

        박성춘 ( Sung Choon Park ),이영대 ( Young Dae Lee ),고성석 ( Seong Seok Go ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.4

        The number of schools which have passed 30 years after the construction takes up 30% (5% falling to class D and E) in Korea. So, the offices of education across the nation conduct large works for the expansion, improvement and renovation of the school. But as the work takes a lot of time, the work is also conducted while the students are studying at the schools. The work at the school causes the noise, dust, vibration as the school often has the reinforced concrete structure. So, as the windows are closed to prevent the nuisance from hampering the education, the problems related to the illumination, ventilation, and control of humidity and temperature are give damages to students studying the school buildings. Actually, as the current renovation or expansion is conducted across the nation due to the implementation of the new education system and the resulting integration and construction of hub school, specialized school, meister school and it causes a lot of nuisance to the learning students and others, there are a lot of complaints from concerned people.Accordingly this study suggests the method of evaluating the factors which affect the learning environment such as the noise, dust or fine dust and reducing the nuisances to the level proper for the learning environment when the existing school is expanded, improved or renovated.

      • KCI등재

        속도시간이력을 이용한 변위 추정 알고리즘에 관한 실험적 검증

        조성호 ( Sung Ho Joh ),전준창 ( Jun Chang Jeon ),황선근 ( Seon Keun Hwang ),이희현 ( Hee Hyun Lee ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.4

        In this study, displacement estimation algorithm, which is not requiring an absolute reference point unlike the conventional displacement measurement method, is developed using the geophone. To estimate displacement of the bridge, measured velocity time signal is integrated in the frequency domain. And, the estimated displacement is compared with the measured result using a conventional method. Based on the dynamic field test results, it was found that the estimated displacement by the present algorithm is similar to that of a conventional method. The displacement estimation algorithm proposed in this paper can be effectively applied to measure the displacement of a structure, which is difficult to install a displacement transducer at the fixed point.

      • KCI등재

        폭발파 모델을 이용한 실내 음장 해석에 관한 연구

        송기혁 ( Kee Hyeok Song ),강우람 ( Woo Ram Kang ),이덕주 ( Duck Joo Lee ),김영남 ( Young Nam Kim ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.4

        A portable recoilless guided missile generates a strong back blast and impulsive noise at the nozzle when it launches. In the case of indoor operations, the hazard of the blast noise from a recoilless weapon increases due to limited indoor spaces. Also, the noise levels determine the operational feasibility of a weapon; therefore, it is important to predict the blast noise levels distribution in the indoor space in advance. In addition, computational fluid dynamics (CFD) method generally used for fluid related simulations, requires high computing cost and time to simulate the whole domains. The domain includes both blast wave region and large and various indoor space region. Therefore, an efficient method for predicting the far-field noise level within a short time should be developed. This paper describes an analysis model for predicting the indoor noise distributions by considering the shape effect of the building within a short time. A new developed blast wave model was implemented using the noise source. Additionally, noise reflections at the closed surfaces such as walls and noise transmissions at the opened surfaces such as windows and doors were considered in calculating the noise levels. The predicted noise levels were compared with the experimental data obtained from the indoor launch test to validate the reliability of program.

      • KCI등재

        부사관학과 학생들의 소방안전교육 경험과 생활안전의식에 관한 연구

        이원주 ( Wonjoo Lee ),권신영 ( Shin Young Kwon ),강순형 ( Soon Hyung Kang ),나윤채 ( Yoon Chae Nah ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.4

        The main purpose of this study is to evaluate the awareness survey on the experience of fire fighting safety education and living safety consciousness of college students in the department of noncommissioned officer. Additionally, making provision of basic references and the effective fire fighting safety education is another important purpose of this study. In order to evaluate the awareness, the survey consist of 43 queries based on 6 queries for general characters, 9 queries for experiences of fire fighting safety education and 30 queries for living safety consciousness. The collected data from survey was analyzed using SPSS 20.0 win program. The interrelationship for general characters was confirmed using analysis of frequency, percentage, independent T-tset, ANONVA analysis, and regression analysis. The results show that the experience of fire fighting safety education and living safety consciousness of students from the combatant branch and ordnance corps are higher than those students from quartermaster corps. This may be attributed to the presence or absence of safety relevant courses on a curriculum. Therefore, the presence of safety courses on a curriculum should be one of important points for improving the experience of fire fighting safety education and living safety consciousness of these college students.

      • KCI등재

        증기발생기 전열관지지판의 축균열 파열억제 효과 분석

        강용석 ( Yong Seok Kang ),이국희 ( Kuk Hee Lee ),김홍덕 ( Hong Deok Kim ),박재학 ( Jai Hak Park ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.4

        A steam generator tubing is one of the main pressure boundary of the reactor coolant system in the nuclear power plants. Structural integrity refers to maintaining adequate margins against failure of the tubing. Burst pressure of a tube at tube support plate can be higher than that for a free-span tube because failure behaviors could be interfered from the tube support plate. Alternative repair criteria for out-diameter stress corrosion cracking indications in tubes to the drilled type tube support plate were developed, however, there are very limited information to the eggcrate type tube support plate. This paper discussed reinforcement effect of steam generator tube burst pressure with axial out-diameter stress corrosion cracking within an eggcrate type tube support plate. A series of tube burst tests were performed under the room temperature and it was found out that there is no significant but marginal effects.

      • KCI등재

        원자력 안전문화의 정량화 방법론 개발

        제무성 ( Moosung Jae ),한기윤 ( Kiyoon Han ) 한국안전학회(구 한국산업안전학회) 2015 한국안전학회지 Vol.30 No.4

        This study developed a Safety Culture Impact Assessment Model (SCIAM) which consists of a safety culture assessment methodology and a safety culture impact quantification methodology. The SCIAM uses safety culture impact index (SCII) to monitor the status of safety culture of the NPPs periodically and it uses relative core damage frequency (RCDF) to present the impact of safety culture on the safety of the NPPs. As a result of applying SCIAM to the reference plant (Kori 3), the standard for the healthy safety culture of the reference plant is suggested. SCIAM might contribute to improve the safety of the NPPs (Nuclear Power Plants) by monitoring the status of safety culture periodically and presenting the standard of healthy safety culture.

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