• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2002년도 학술.기술논문발표회
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• pp.117-121
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• 2002

The purpose of this study was to Identification the Risk of construction method to protect and reduce the risk of construction period. For this study we are using the pre and during construction period Inspection list. The inspection list was used by construction company for check a flaw of Construction field. So we rearrange the individual item of inspection list to match the Risk factor. This inspection list usually has the difference of importance because this list is not made by Method which is not focused on Method. Therefore, To find the difference of these importance, We surveyed this matter by doing interview of specialist group. To find the application of field and the possibility of measurement of Risk status, We tested Risk occurring frequency and it's strength by checking the level of Risk. The results of this study were as follows; Each Method Check List made out through the rearrangement of Construction Inspection list which used in construction company. To solve and compensate the matter which happened by changing the each Method Check List to each General Inspection List, we added the each Method Check List by checking the importance of check list of each process. By doing this, The Check List for finding Risk level of Method was created by using the check list of each Method.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
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• pp.384-387
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• 2004

건설프로젝트 참여자들이 전체공기에 영향을 미치는 공정리스크 관리에 대한 중요성을 공감하고 있지만 그에 대한 관리 절차 및 도구 등이 체계화되어있지 않아 어려움을 겪고 있다. 또한 발생한 리스크에 대한 대응방안 및 관리방법에 대한 연구는 비교적 활발히 추진되었지만 시공단계의 리스크를 착공 전 단계에 파악하고자 하는 노력은 부족하였다. 따라서 본 연구에서는 건설프로젝트 전체공기에 중요한 영향을 미치는 착공 전 단계에서의 공정 리스크 관리업무를 지원하기 위하여 공사프로세스 중심의 리스크 분류체계와 전산시스템 구축을 위해 요구되는 코드체계 및 공정리스크에 대한 사전대비를 위한 공정리스크 검토양식을 개발하고, 이에 대한 활용방안을 제시하고자 한다.

• 플랜트 저널
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• 제6권1호
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• pp.56-63
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• 2010

While the local plant market is reducing its volume, the plant market over the world since 2000s is rapidly expanding. The nation's construction companies, aggressively dedicated in launching out overseas plant market, increase the volume of orders in that sector, but there also are much difficulty in the project management as those projects ordered are gradually large scaled with more cutting-edge high-tech requirements along with comparatively higher risk. Though the local construction companies have developed their own types of measures to analyze the risk evaluation putting into practice, the specialized decision-making model for the overseas plant market or the risk measure understandable easily and applicable practically is not yet shown. This paper aims at providing the methodology to evaluate the risk by way of constructing the risk evaluation process in order to induce risk measuring elements through appropriate indexing system. Furthermore, through studying the risk management system, it aims to seek for a thorough risk management method from beginning of the project to the end.

• 플랜트 저널
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• 제6권1호
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• pp.64-70
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• 2010

From 2000, the world plant market, especially plant developing business related to oil and gas, has been increasing. Domestic construction companies advance to overseas plant construction market actively, and proportioning to this, an importance of utility construction is increasing. However, the project becomes large and high-tech, and many companies experience difficulty of project management due to relatively high risk of overseas construction. In this study, we built the standard process with which domestic company can evaluate the risk of overseas plant utility construction. Primary factors for risk evaluation is derived, classification system is made out, primary factor is analyzed, and counter plan is suggested. And thorough management of risk is performed by risk management organization that manages the risks, risk control methods, reports and monitors through risk sheet and risk action log from the start of project to the end.

• 한국건축시공학회지
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• 제2권4호
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• pp.131-135
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• 2002

The purpose of this study was to Identification the Risk of construction method to protect and reduce the risk of construction period. For this study we are using the pre and during construction period Inspection list. The inspection list was used by construction company for check a flaw of Construction field. So we rearrange the individual item of inspection list to match the Risk factor. This inspection list usually has the difference of importance because this list is not made by Method which is not focused on Method. Therefore, To find the difference of these importance, We surveyed this matter by doing interview of specialist group. To find the application of field and the possibility of measurement of Risk status, We tested Risk occurring frequency and it's strength by checking the level of Risk. The results of this study were as follows; Each Method Check List made out through the rearrangement of Construction Inspection list which used in construction company. To solve and compensate the matter which happened by changing the each Method Check List to each General Inspection List, we added the each Method Check List by checking the importance of check list of each process. By doing this, The Check List for finding Risk level of Method was created by using the check list of each Method.

• Safety and Health at Work
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• 제1권1호
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• pp.1-10
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• 2010

The Finnish risk assessment practice is based on the Occupational Safety and Health (OSH) Act aiming to improve working conditions in order maintain the employees' work ability, and to prevent occupational accidents and diseases. In practice there are hundreds of risk assessment methods in use. A simple method is used in small and medium sized enterprises and more complex risk evaluation methods in larger work places. Does the risk management function in the work places in Finland? According to our experience something more is needed. That is, understanding of common and company related benefits of risk management. The wider conclusion is that commitment for risk assessment in Finland is high enough. However, in those enterprises where OSH management was at an acceptable level or above it, there were also more varied and more successfully accomplished actions to remove or reduce the risks than in enterprises, where OSH management was in lower level. In risk assessment it is important to process active technical prevention and exact communication, increase work place attraction and increase job satisfaction and motivation. Investments in OSH are also good business. Low absenteeism due to illness or accidents increases directly the production results by improved quality and quantity of the product. In general Finnish studies have consistently shown that the return of an invested euro is three to seven-old. In national level, according to our calculations the savings could be even 20% of our gross national product.

• Ocean Systems Engineering
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• 제9권3호
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• pp.261-285
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• 2019

Nowadays in offshore industry there are emerging hazards with vague property such as act of terrorism, act of war, unforeseen natural disasters such as tsunami, etc. Therefore industry professionals such as offshore energy insurers, safety engineers and risk managers in order to determine the failure rates and frequencies for the potential hazards where there is no data available, they need to use an appropriate method to overcome this difficulty. Furthermore in conventional risk based analysis models such as when using a fault tree analysis, hazards with vague properties are normally waived and ignored. In other word in previous situations only a traditional probability based fault tree analysis could be implemented. To overcome this shortcoming fuzzy set theory is applied to fault tree analysis to combine the known and unknown data in which the pre-combined result will be determined under a fuzzy environment. This has been fulfilled by integration of a generic bow-tie based risk analysis model into the risk assessment phase of the Risk Management (RM) cycles as a backbone of the phase. For this reason Fault Tree Analysis (FTA) and Event Tree Analysis (ETA) are used to analyse one of the significant risk factors associated in offshore terminals. This process will eventually help the insurers and risk managers in marine and offshore industries to investigate the potential hazards more in detail if there is vagueness. For this purpose a case study of offshore terminal while coinciding with the nature of the Caspian Sea was decided to be examined.

• Geomechanics and Engineering
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• 제28권6호
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• pp.573-584
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• 2022

Water inrush may occur during seaside urban tunnel excavation. Various factors affect the water inrush, and the water inrush mechanism is complex. In this study, nine evaluation indices having potential effects on water inrush were analysed. Specifically, the geographic and geomorphic conditions, unfavourable geology, distance from the tunnel to sea, strength of the surrounding rock, groundwater level, tidal action, cyclical footage, grouting pressure, and grouting reinforced region were analysed. Furthermore, a two-step interval risk assessment method for water inrush management during seaside urban tunnel excavation was developed by a multi-index system and interval risk assessment comprised of an interval analytic hierarchy process, fuzzy comprehensive evaluation, and relative superiority analysis. The novel assessment method was applied to the Haicang Tunnel successfully. A preliminary interval risk assessment method for water inrush was performed based on engineering geological conditions. As a result, the risk level fell into a risk level IV, which represents a section with high risk. Subsequently, a secondary interval risk assessment method was performed based on engineering geological conditions and construction conditions. The risk level of water inrush is reduced to a risk level II. The results agreed with the current tunnel situation, which verified the reliability of this approach.

• Korean Chemical Engineering Research
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• 제52권6호
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• pp.750-754
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• 2014

초고농도 과산화수소 제조를 위한 투과증발 공정의 정량적 위험성 분석을 수행하였다. 잠재적 주요 사고는 분해반응에 따른 폭발 및 화재이며 실험실 규모일 때 사고결과는 카테고리 3에 속하는 것으로 판단된다. 대상공정에서 분해반응이 일어나는 과정을 사건트리 형태로 모델링하고 사고원인들의 확률함수를 유사사건 발생빈도 자료를 근거로 설정하였다. 구축된 모델을 사용하여 사고율을 계산한 결과, 수용 가능한 위험수준, 즉 사고빈도가 $10^{-4}/yr$ 이하가 되려면 추가 안전장치가 필요한 것으로 파악되었다. 이를 위해 방호계층분석을 적용한 결과, 촉매반응을 막기 위한 본질적 안전설계, 과열을 막기 위한 SIF (safety instrumented function), 그리고 분해반응이 일어나더라도 폭발로 이어지지는 것을 막는 릴리프 시스템이 요구되었다. 제안된 방법은 과산화수소 농축을 포함한 다양한 화학공정의 안전관리시스템 개발에 기여할 수 있을 것으로 기대된다.

• 정보보호학회논문지
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• 제25권3호
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• pp.639-648
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• 2015

2000년대 들어 아날로그기술 기반의 원전 계측제어시스템에 디지털기술이 적용되기 시작하였고 현재 국내에서 건설 중인 신월성 원전 2호기, 신고리 원전 3 4호기, 신울진 원전 1 2호기는 국산 MMIS가 적용된 한국형 원전 APR1400 디지털 계측제어시스템을 적용하고 있어 대부분의 장비가 디지털화 되었다. 이러한 디지털 장비는 기존 아날로그 장비에 비해 사이버공격에 취약하므로 원전 계측제어시스템의 사이버보안이 중요한 이슈로 부각되고 있다. 본 논문은 원전계측제어시스템의 사이버보안 위협별 위험도산정 프로세스를 제안하고 원전계측제어시스템개발(KINCS) 사업에서 개발된 원자로보호계통에 제안하는 프로세스를 적용하여 RPS 노드 및 인터페이스의 위협별 위험도를 산출하였다.