• 대한안전경영과학회지
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• 제14권3호
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• pp.101-109
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• 2012

It is commonly recognized that railway is one of the representative transportation and it offers public service based on strategies for being rapid, automation, safety. Since the opening of high speed railway, 3-hundred-million people have used it and acknowledged its efficiency. However, derailed accident at Kwangmyeong station in February, 2011, frequent malfunction of KTX-Sancheon, and accidents by engineer's careless fault damaged on credibility of safety, Especially, spreaded accidents through social networking service by cell phones amplified anxiety of public, being criticized by the press. This study analyzed statistics of past accident and cases of passing-by accident, and surveyed 152 KTX captain engineers about their recognition of the accident by careless fault and experiences of possibility of occurrence for preventing engineer's careless fault and restoring trust According to the analysis, engineers worry about responsibility and disadvantages related to the accidents for the most, and they are nervous about malfunction for the second most. This study presents prevention methods regarding the result. First, it is required to improve mental stability and concentration on their work, secondly, advanced ability to cope with malfunction or error through repetitive education and training are required to increase confidence, and for the last, improvement of operational supporting system such as ATP, GPS to prevent errors by human factors. Improvement of the system is expected to lead engineers to prevent careless fault and regain the reputation of railway.

• 기술사
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• 제34권2호
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• pp.14-18
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• 2001

The primary cooling piping of HANARO is classified as safety class 3, seismic class 1 and quality class Q. This piping as safety related feature has been designed, manufactured and tested in accordance with ASME SEC. Ⅲ, DIV 1, Class 3. In October of 2000, the first step of the in-service inspection for this piping was carried out in accordance with ASME SEC. XI. This describes the results of the Inspection including the preparation of inservice inspection plan and inspection method. It is verified through the results that the safety related piping is maintained the mechanical and structural Integrities.

• 기술사
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• 제16권2호
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• pp.11-17
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• 1983

This work presents a method for the determination of the safety factor of a slope based on the theory of the calculus of variations. The method allows for the determination of the critical sliding line (The one giving the minimum safety factor) without the necessity of guessing about its shape, which leads to a considerable economy of time and effort. Furthermore it gives the actual safety factor of the slape and consequently a more complete knowledge of the safety of the slope is obtained.

• 대한안전경영과학회지
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• 제9권3호
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• pp.173-182
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• 2007

We suggested the policy of labor management in pump manufacturing industry through survey in order to improve competitive ability. In pump manufacturing industry, since it is difficult to find sufficient worker having technical skill and knowledge concerning pump manufacturing technology, therefore the industry must cultivate the employee systematically. We reached the result, production engineer and R&D engineer play an important role to improve competitive ability in pump manufacturing industry. Though they need technical education, the effect of education was not satisfactory. To solve this problem, suitable technical education course must be devised. Marketing reinforcement is a important factor in pump manufacturing industry. To achieve marketing reinforcement, each company must develop their present technology further and raise marketing ability to expand internal and external business. It is also consulted to use IT technology.

• Geomechanics and Engineering
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• 제12권4호
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• pp.627-637
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• 2017

The high positive correlation between plastic strain of loaded coal-rock and AE (acoustic emission) characteristic parameter was studied and proved through AE experiment during coal-rock uniaxial compression process. The results show that plastic strain in the whole process of uniaxial compression can be gained through the experiment. Moreover, coal-rock loaded process can be divided into four phases through analyzing the change of the plastic strain curve : pressure consolidation phase, apparent linear elastic phase, accelerated deformation phase, rupture and development phase, which corresponds to conventional elastic-plastic change law of loaded coal-rock. The theoretical curve of damage constitutive model is in high agreement with the experimental curve. So the damage evolution law of coal rock damage can be indicated by both acoustic emission and plastic strain. The results have great academic and realistic significance for further study of both AE signal characteristics during loaded coal-rock damaged process and the forecasting of coal-rock dynamic disasters.

• 기술사
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• 제33권3호
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• pp.15-19
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• 2000

The importance of the nuclear energy as one of the national energy sources, safety consideration of the nuclear power plants and status of nuclear power generation and nuclear fuel cycle in Korea are discussed.

• 한국안전학회지
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• 제7권4호
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• pp.55-61
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• 1992

An engineer designing a tunnel in an urban area should be to predict the magnitude and distribution of ground movements which are important to Investigate the potential damage to the existing structures around tunnel. The present study examines available theories and emprical equations, and tries to investigate quantativily ground movements around tunnel with tunnel progressing. Approcaches to the problem of ground movements associated with twin tunnel was and elasto - plastic finite element method. Typical section in Seoul Subway were selected in numerical study. The analysis and study was done with respect. to surface, subsurface and crown settlements with varying ground conditions, tunnel geommetry and construction conditions.

• 안전기술
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• 제198호
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• pp.24-25
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• 2014

환경을 생각하는 발전소가 있다. 경기 남부지역의 주요 에너지 공급원 역할을 하고 있는 평택에너지서비스(주)가 그곳이다. SK E&S가 운영하는 국내 6개 발전소 가운데 하나이기도 한 이곳은 LNG연료를 사용하여 환경오염을 최소화하고 있다. SK E&S는 안전 보건 환경경영을 실천하며, 깨끗하고 안전한 근무환경을 조성하기 위해 노력하고 있다. 평택에너지서비스(주)도 이러한 기치 아래 운영되면서 상용발전 이후 단 한 차례의 환경 안전사고 문제가 불거진 적이 없다. 안전경영의 산실인 이곳에서 안전관리 업무를 맡고 있는 이수영 과장이 오늘의 주인공이다. 그를 찾아가 안전에 대한 신념과 철학 등을 들어봤다.

• 안전기술
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• 제203호
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• pp.24-25
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• 2014

수도권 시민들의 휴양지로 각광 받아온 아름다운 해변도시 태안이 미래 대한민국 산업을 뒷받침할 국내 최대 에너지 클러스터로 변신 중에 있다. 380MW급 석탄가스화복합발전기(IGCC)와 1000MW급 석탄화력발전기(2기)가 각각 2015년과 2016년에 준공될 예정에 있는 것이다. 대규모 국가기반시설 건설현장인 만큼 이 사업을 진행하고 있는 한국서부발전(주) 태안건설본부는 무엇보다 안전에 각별한 신경을 싣고 있다. 그리고 그 중심에는 강광주 안진품질팀장이 있다. 무재해 무사고 준공으로 국민들의 편안한 생활과 튼튼한 산업기반조성에 기여하고 싶다는 그를 만나봤다.

• 기술사
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• 제38권4호
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• pp.16-18
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• 2005

Initiated by the Ministry of Labor, a lot of efforts have been dedicated to the area of occupational injury prevention and some achievements were obtained as well. However, we may find the reason of not having a considerable decrease of occupational injuries in our society in the overall low safety level, lacking safety awareness and lacking proper measures in conformity with the safety standard. Taking a lesson from the above facts, we hereby present measures to be taken for the success of the second Five-Year Occupational Injury Prevention Plan(2005-2009).