• 한국농공학회논문집
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• 제60권4호
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• pp.15-25
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• 2018

The accident risk at the construction workplace associated with agricultural engineering is comparatively higher than those of other fields due mainly to its complex work types and processes. Agricultural engineering deals with a variety of agricultural infrastructures from irrigation and drainage facilities to giant-scale coastal reclamation land infrastructures. The characteristics that most agricultural projects have conducted on a small-scale even worsen the situation drawing low attentions to risk management. Therefore, systematical risk assessment that focuses on details of agricultural construction work process is required in order to enhance safety management capacity and to prevent repetitive accidents ultimately. This study aims to categorize construction work types and processes of agricultural construction works, and to quantitatively assess the accident risk of them based on accident analysis. Regarding classification of construction works, actual 827 accident cases were thoroughly reviewed and coded by their construction site, facility and work type, project scale and so on. Most accidents (71.8 % of total cases) occurred in small-scale construction workplaces with less than 5 billion Korean won project budget. And those accidents related to agricultural infrastructure project (37.4%) and agricultural water development project (22.4%). In terms of work types, accidents frequently took place in form-work followed by pipe installation work, steel bar work and concrete work. The potential risks were compared with actual outbreak of accidents based on Analytic Hierarchy Process (AHP). The results show that the potential conditions of accident expected to be took place is somewhat different from the actual conditions where accidents actually happened. This implicates that risk management manuals or education needs to be adjusted by reflecting unexpected circumstances. Overall, this study is meaningful in that the results could be foundations as to strengthen risk management capacity for agricultural engineering projects.

• Structural Monitoring and Maintenance
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• 제10권1호
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• pp.25-42
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• 2023

Despite the significance of ports as critical economic infrastructure, the berth facilities usually deteriorate due to heavy loading, unloading, aging, environmental weather conditions, marine growths, and lack of efficient maintenance management. Marine berths require proactive maintenance management to limit deterioration and defects as no berth facility is maintenance-free. Thus, delay in carrying out maintenance work for the marine berths can be devastating to the operational process involving ship entry, loading, and unloading operations. The aim of this research is to coordinate both operations work, and maintenance works that take place inside the berth of a local industrial port in Saudi Arabia, by developing a novel framework that integrates both works without affecting the efficiency and functionality of the berth. The study focused on defining the operational process of the port and identifying the elements with direct and indirect effects. In addition to determining the priority for the entry of ships inside the berth, it also identified the factors involved in designing a framework that included maintenance work as a component of the monthly berth occupancy schedule. By applying a mathematical model, a framework was established, which includes all the important elements of the process. As a result of the mathematical method formulation process, a database was designed that organizes and coordinates the operations of all berths within the port. This creates time to carry out the required maintenance work monthly as well as ease of coordination with the contractors responsible for the implementation of those works.

• 상하수도학회지
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• 제26권4호
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• pp.565-578
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• 2012

Integrated watershed sewage works program(IWSWP) is defined as implementing, by one of local governments or central government, sewage facilities planning, installation and management for a certain watershed in which criteria of water quality is established and two or more local governments are involved. It is shown that IWSWP is more efficient for the improvement of water quality of water body than conventional local sewage works program(CLSWP) and besides, economical benefits can be achieved by integration of facilities and M&O. In this research, case study for 8 watershed area were investigated to evaluate the difference of effect between IWSWP and CLSWP. The research shows that IWSWP has the money saving result of approximately 12 % by cost reduction for sewage works investment. B/C analysis result shows that B/C ratio of IWSWP was 1.749 and it is higher than B/C ratio of 1.439 for CLSWP. At the same time, the B/C sensitivity analysis is carried out for the rate of discount and the recreational use benefit.

• Industrial Engineering and Management Systems
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• 제11권2호
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• pp.188-195
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• 2012

This paper presents a new mode of expressing a 3D assembly work for creating a 3D CG animation without judgment by human from minimal required information. In the field of manufacturing, there are favorable movements in the utilization of 3D CAD for 3D simulation to shorten lead time for product development and pre-production. But simulating an assembly work has troubles to need huge quantity of manually input data. This paper discusses what minimal necessary information for creating 3D CG animations of assembly works is, focusing on the features of assembly works. Furthermore, a new mode of expressing a 3D assembly work is proposed as "state/change transition diagrams" (SCTD), which express arbitrary scenes in an assembly work as "state" and describe a sequential assembly work with "state" and "change", and the outline of its stepwise generation algorithm is also described. SCTD can be converted to a 3D CG animation of an assembly work without judgment by human. This paper focuses on the creating 3D CG animation of assembly works which workers use only their both hands.

• 한국건설관리학회논문집
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• 제2권2호
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• pp.81-89
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• 2001

건설산업은 생산의 단속성, 시장의 불안정성 등 다른 산업과 비교하여 독특한 특성을 갖고 있다. 이러한 특성으로 인해 건설 공사의 비용은 일반 제조업분야에 비해 실제 투입되는 생산비용을 파악하기가 어려우며 프로젝트별로 많은 차이를 나타낸다. 따라서 건설비용을 표준화하는 것은 매우 어려운 작업이며, 비용의 정확한 측정과 분석은 매우 중요한 의미를 갖는다 본 연구에서는 원가계산에 의한 예정가격 산정시 문제점인 획일적인 비율적용에 의한 기존 간접노무비율 산정기준의 문제점을 완성공사 원가구성 분석자료를 통해 고찰한다. 이상의 분석자료를 바탕으로 합리적인 건설공사 간접노무비율의 산정방법 및 기준을 제시하여 실제공사의 예정가격 작성시 의사결정을 돕고자 한다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2006년도 춘계 종합학술대회 논문집
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• pp.347-350
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• 2006

지방국토관리청이나 지자체에서는 하천의 관리, 이용, 개발, 치수 및 수질 보전을 위해 매년 국가하천 및 지방 1 2급 하천에 대한 하천정비기본계획을 실시하고 있으며, 하천정비기본계획보고서와 대장 등이 성과물로써 납품되고 있다. 그러나, 2003년도 이전에 실시된 하천정비기본계획의 경우, 보고서 및 대장 등 성과물이 체계적으로 관리되지 못하여, 건교부 및 지자체 등과 같은 정부부처와 정부투자기관, 대학 및 연구소와 하천협회 등과 같은 자료의 활용빈도가 높은 전문가 집단에서 본 자료를 활용하는데 많은 제약이 있었다. 본 논문에서는 하천정비기본계획 자료의 데이터베이스 구축을 통한 체계적인 관리와 웹 시스템을 통한 효율적인 정보제공이 가능하도록 2005년에 구축된 하천정비기본계획보고서 정보제공시스템을 소개하고자 한다.

• 대한인간공학회지
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• 제36권3호
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• pp.245-254
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• 2017

Objective: This study aims to investigate the effects of organizational support, risk perception and job satisfaction on safety consciousness in confined space works. Background: Confined space works are rated as hazardous works with high injury frequency and fatalities. But there were few researches for the occupational injury of the confined space workers. Method: Questionnaire survey targeting 236 workers working in confined spaces were carried out to construct the structural equation model on safety consciousness. The participants were all male workers, and they install and maintain or clean facilities mainly in the confined spaces. Results: A structural equation model for safety consciousness was proposed, and validated based on perceived organizational support, risk perception and job satisfaction factors. Perceived 'organizational support' contributed significantly to 'worker's safety consciousness' both directly and indirectly. Also, perceived 'worker's safety consciousness' was also affected by perceived 'job satisfaction' and 'risk perception'. In terms of magnitude of relationships, the direct effect of perceived 'job satisfaction' on 'worker's safety consciousness' was the greatest among the interrelationships among latent factors. Conclusion: Workers' safety consciousness can function as a leading indicator for safety and hazard prevention of workers. Application: The results can be used in developing safety prevention programs for confined space workers.

• Architectural research
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• 제13권1호
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• pp.3-9
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• 2011

To design and construct a museum of art involves the interest of artists, architects, curatorship, management, and local government. More than this direct relationship, museum obliges the public a mission of delivering genuine public experience through art and architecture. However, most of Modern and contemporary architecture has not delivered genuine public experience of integrated art and architecture. Conceptual message of art and perceptual architectural exhibition space has not been integrated easily. Picture frame canvas initiated this schism and institutionalized museum management hampered the creativity of artists. This schism was overcome through artists' questioning of museum culture and creative works that embrace work and its environment. In contemporary culture, installation art and media art necessitates a new museum format which needs not only exhibition, but laboratory and interface space with viewers. This paper will regroup the existing museum according to its use and strategy, and reinterpret progressive museums that fosters young artists, and more than this, will introduce successfully established museums for new forms of art, which are equipped with versatile exhibition spaces, innovative interface between works and viewers, and own laboratory that can produce works of art. These examples will envision a creative method of art and architecture production that can achieve genuine public experience.

• 대한안전경영과학회지
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• 제13권2호
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• pp.9-18
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• 2011

Daily workers in construction sites rarely receive the benefit of systematic safety and health training as they are required to move from one construction site to another in response to the start, completion, and repetition of construction works. Also, small- to medium-sized construction sites often lack the capacity to train their workers. Therefore, as in the advanced countries, basic OSH training sheme for construction workers should be conducted in the industrial-level, rather than in individual workplace-level, to make the training more effective. By doing so, only workers with the basic safety training will be able to engage in construction works. Consequently, accidents in the construction industry will decrease, as workers themselves who are at the forefront of the construction worksites are empowered to play the central role in accident prevention activities.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.1029-1032
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• 2007

본 연구는 대한주택공사에서 주관하여 파주 운정지구 A-14블럭 아파트 신축공사를 대상으로 실시한 설계 VE 경진대회를 통하여 수행된 VE워크샵을 사례로 공동주택에서 Job Plan 따른 기능분석과 아이디어 창출 및 평가를 실시하였다. 연구결과 163건의 기능정의를 실시하였고, 333건의 아이디어 발상을 통하여 193건에 대하여 아이디어 구체화를 실시하였다. 가치향상 46건과 원가절감 103건에 대하여 VE를 제안하였고, 100억 4천만원의 원가절감을 제안하였다.