• Korean Journal of Construction Engineering and Management
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• v.8 no.1 s.35
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• pp.87-95
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• 2007

If construction process operate composing work team by judgment manager's experience, possibility that progress of construction process becomes as inefficient is much. But, If produce optimal proposal of resources allocation, construction cost and duration through simulation at work plan step, work schedule because do quantification efficient operate do on. When plan construction process in this research, resources allocation by change of work team operation change, resources cost loss, total cost, optimal proposal of construction duration tentative plan of numerical formula model that can do simulation propose. Apply and revealed to apartment house framework which horizontal work area of process and vertical work area are composed as is each different construction process to verify proposed numerical formula model. Achieved efficiency than work team's operation results which apply numerical formula model that is presented in this research and enforce simulation is applied in actuality example construction.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2009.04a
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• pp.234-237
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• 2009

많은 건설 현장에서 카메라와 CCTV(Closed-circuit Television)와 같은 장비를 활용하여 건설 현장의 상황을 모니터링 하고 있다. 하지만 많은 작업이 실외에서 이루어지는 토목 건축공사의 특성상 적절한 수준의 영상 데이터를 축적하는 것은 쉽지 않은 일이다. 특히, 이미지 프로세싱기법을 사용 하여 자동화된 건설 관리의 수행 시, 영상 데이터의 품질에 따라 에러가 발생하여 건설 관리자가 잘못된 정보를 얻게 될 경우도 발생하게 된다. 본 연구에서는 케니엣지(Canny Edge) 인식기법과 워터쉐드(Watershed) 변환, 그리고 3D CAD Mask를 이용한 건축 구조물 기둥의 시공 상황 분석 기법에 근거하여, 영상 데이터 분석 시 오류를 최소화하기 위한 에러 제거 알고리즘을 제시한다. 실제 데이터와 비교를 통하여 그 활용 가능성 또한 검증한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2017.11a
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• pp.167-169
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• 2017

명량수도 조류신호표지시스템 구축을 위하여 시공 전 단계에서 해양조사 및 수치모델링을 통한 최적위치를 선정하고, 센서 설치구조안정성 검토 결과를 바탕으로 파일, 싱커, 앵커방식, 센서 보호 구조물 등을 반영한 관측시스템 설계와 시공을 수행하였다. 관리자 인터페이스 및 자료관리를 위한 운용 소프트웨어와 연계하여 명량수도를 대표할 수 있는 조류정보(유향, 유속, 유속의 경향)를 항해자에게 실시간으로 제공하여 통항 선박의 안전운항을 확보할 수 있다.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2014.05a
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• pp.184-185
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• 2014

International construction contracts to Korean construction companies have been dramatically increased over the 48 years (Contract received worth 65.2 billion dollars in 2013). Especially, the plant construction sector has achieved about 61% among the 65.2 billion dollars. Under this trend, in order to ensure plant construction's competitiveness, 'standard classification' is an important area for systematic management. However, these standards in the plant construction are not widely utilized yet, in comparison with civil and building sectors. Therefore, in this research, a higher level of standard classifications is proposed for various types of power plants from a PMO's (Project Management Office) perspective. This study also provides a comparative analysis outlining different features and common components based on various types of power plants.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2010.04a
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• pp.114-119
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• 2010

최근 설계, 시공되는 건축물은 초고층 또는 대단지 주거시설로서 화재발생시 초기에 빠른 대응이 요구 되나 근무자의 첨단 소방시설관리에 대한 지식은 부족한 실정이다. 본 연구에서는 건축물의 대형화로 인한 네트워크제어방식의 효용성을 알아보고 기시공된 현장의 화재수신기 네트워크 운영 실태 및 현황을 파악 하여 관리에 일조하고자 한다. 이를 위해 10개 대형현장의 네트워크를 조사한 결과 경보시스템에 대한 낮은 신뢰도 때문에 타설비와의 시트템구축을 기피하고 있었다. 또한 방재관련 법규의 제한된 규정으로 인한 통신선 사용에 있어서의 문제점도 개선될 필요가 있었다. 아울러 관리자의 잦은 이직으로 인한 기술적 축적 방안 마련, 복지문제와 면적이 넓은 네트워크시스템에 대한 신호처리방법 및 반응시간등에 대한 규정제정이나 운영상 표준화가 필요하였다.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2018.05a
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• pp.124-125
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• 2018

The objective of this study is analyzing of requirements for improvement of the work-life balance of construction managers working in Korean construction companies. A survey has been conducted to analyze the requirements for improvement of construction managers. The survey was conducted on construction managers working in the field of architectural construction. 59 field managers working in 18 Korean construction companies responded to the survey. Upon analysis of the survey, the working hours were excessive and recreational time was very poor for the construction managers. There were differences in the answers regarding the areas that require improvement in the working conditions based on the age groups of the construction managers. A majority of young technicians selected that the recreational time and content of work require improvement, and technicians with a lot of experience selected that the stability of occupation and wage require improvement.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.11a
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• pp.249-251
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• 2019

장죽수도 조류신호표지시스템 구축을 위하여 시공 전 단계에서 현장해양조사 및 수치모델링을 통한 최적위치를 선정하고 센서 설치 구조안전성 검토 결과를 바탕으로 시공을 수행하였다. 관리자 인터페이스 및 자료 관리를 위한 운용 소프트웨어와 연계하여 장죽수도의 조류정보(유향, 유속, 유속의 경향)를 항해자에게 AIS 정보로 실시간으로 제공하여 통항 선박의 안전운항을 확보하고, 또한 조류관측자료 분석을 통하여 실시간 정확한 조류정보와 예측 값을 반영하여 해양사고를 미연에 방지 할 수 있다.

• Journal of the Korea Institute of Building Construction
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• v.20 no.1
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• pp.73-81
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• 2020

The main purpose of the study is to reduce the accident death rate in the construction industry. To achieve this goal, the safety planning tasks were analyzed and assessed in terms of the importance and preventive effects of the tasks. Through the extensive literature reviews, the safety planning tasks were identified and reviewed by safety managers. based on the safety planning tasks developed in the previous stage, a survey was conducted in order to receive responses by experts with knowledge on the effects and importance of preventive measures for safety. Then, the Importance Performance Analysis(IPA) method was employed to identify the safety manager's tasks that have an effect on performance indicators. Advice and guidance on making the employment rules, etc. (#18) and details about participation and consultation at the Occupational Safety and Health Committee (#16) were found to require revision and improvement of details and guidelines. The effective safety tasks identified are expected to have a critical role in reducing the accident death rate in the construction industry.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.467-470
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• 2006

The earth volume which is the basis of all the construction has gone through great development so far with the use of construction machine; however, systematic studies on the related area is in need since the appropriate compound engineering method of earth volume equipments which is a key factor for shortening the project duration and cost reduction is not systematically established and it is dependent on experience. Reasonable mechanical earth volume should take into consideration of performance and characteristics of the equipment, the kind of project, scale and conditions in advance. Also, the optimum compound engineering should be planned by selecting several available scales of equipment. In this study, the earth volume estimate model is established for optimum compound engineering of earth volume equipment for mechanized earth volume equipment loading and moving stage among many stages of earth volume task using system dynamics technique. The optimum compound engineering model of the earth volume equipment produced as a result of this is expected to make reasonable decisions in the shortest time in selecting earth volume facility.

• Korean Journal of Construction Engineering and Management
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• v.23 no.6
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• pp.21-29
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• 2022

Productivity estimation of construction operations is crucial to successful project delivery. Especially in the preconstruction phase, the adequacy and effectiveness of plans directly affect the actual performance of operations. Currently, productivity estimation is conducted by referring to existing references such as the Construction Standard Production Rate. However, it is difficult to promptly apply changing conditions of operations when using such references. Moreover, it is difficult to deduce the optimal combination of construction machinery for the given condition. This paper presents a simple simulation model that can be used to generate productivity data that considers site conditions and construction equipment combination. The suggested method is expected to be used as a decision making assisting tool for practitioners who rely on estimations using the Construction Standard Production Rate when establishing construction plans using heavy machinery such as backhoes, loaders and dumptrucks.