• Korean Journal of Construction Engineering and Management
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• v.2 no.3 s.7
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• pp.83-91
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• 2001

Generally the level of accumulating scheduling knowledge-base in Korean construction companies is in the scheduling knowledge-base infrastructure construction phase and Even in top 10 construction companies, the level is in early scheduling knowledge activity phase. The principle causes of this situation are unawareness of importance to scheduling knowledge and absence of procedure related to scheduling knowledge-base. This research analyzes the problems to accumulate scheduling knowledge-base in Korean construction companies and proposes a procedure model to accumulate scheduling knowledge-base property, which adds items of scheduling knowledge-base infrastructure and scheduling knowledge activity to the existing scheduling procedures of Korean construction companies. Using procedure model for accumulating scheduling knowledge-base, Korean construction companies can develop a new scheduling procedure and accumulate scheduling knowledge accordingly. If scheduling knowledge were accumulated property according to the procedure, a framework for knowledge management system could be provided.

• 월간 기계설비
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• no.7 s.216
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• pp.52-55
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• 2008

공정거래위원회가 건설기계임대차 분야에 있어서 불평등한 계약관행을 개선하고 공정한 거래질서를 확립하기 위해 최근 "건설기계임대차 표준계약서"를 제정했다. 이에 따라 국토부는 지난 6월 10일 산하 공공기관 관계자 등과 간담회를 갖고 표준약관으로 제정된 건설기계임대차 표준계약서가 공사대장의 작성.비치.관리와 함께 공사현장에서 널리 사용, 정착되어 건설공사의 투명성이 제고될 수 있도록 적극적인 협조를 당부했다. 이번에 제정된 건설기계임대차 표준계약서는 지난 해 대한설비건설협회를 비롯한 4개 단체와 국토해양부가 협의를 거쳐 공정위에 건설기계임대차 표준계약서 표준 약관을 공정위에 심사, 청구한 것을 공정위가 승인한 것이다.

• Korean Journal of Construction Engineering and Management
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• v.23 no.1
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• pp.16-27
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• 2022

This study analyzed both the legal system regarding fair trade and the types of unfair trade in the construction industry. Then, it derived the factors with which to evaluate the level of fairness. These factors were classified by each type of participant in the construction industry, such as general contractors and subcontractors, and each construction stage, such as bidding, contracting, and construction. The perceived fairness level of factors was analyzed using a survey of 238 employees of general contractors and subcontractors. Next, the study developed a fairness index for the construction industry. The index showed that subcontractors perceived the level of fairness more negatively than general contractors, but both perceived the construction stage of the industry as having the lowest level of fairness. General contractors perceived the bidding and contracting stages as having the highest fairness levels, and subcontractors perceived the contracting stage as having the highest level of fairness. The developed fairness index identified the evaluation factors that need improvement and the fairness level perceived by each type of participant at each stage of construction. The results of this study can contribute to establishing measures that improve the level of fairness in the construction industry.

• Korean Journal of Construction Engineering and Management
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• v.23 no.4
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• pp.65-77
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• 2022

Schedule management is one of pivotal project success factors during construction projects. However, there are many difficulties in rapid scheduling and controlling since the existing planning techniques require considerable amount of manual work and manager's judgment in a construction project. This research aims to propose a new scheduling method and algorithm for automating and visualizing the planning process, which is called Countable-grid scheduling method. In this method, if the scope of work is defined via a visualized tool, the schedule plan is created automatically according to the productivity and workable conditions of each activity. The location of the work for each date can be visualized in grid-based approach. Moreover, the work schedule can be updated automatically according to the progress. The industrial applicability of the proposed method was verified in construction projects via case study with sample data. This research can contribute to the construction industry by automating the construction schedule management process.

• Korean Journal of Construction Engineering and Management
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• v.10 no.5
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• pp.47-56
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• 2009

As contemporary society becomes information-oriented, major construction companies have recently invested in information management, but small and medium ones have not. Though the small and medium companies recognize the information management is necessary and important, they don't have an ability to possess technical expertises. The purpose of this study is to develop a Schedule Risk Control System based on blogs using IT and web technologies for construction managers in small and medium construction companies. The system makes a chance to identify risk factors and prepare for responses to settle risks happened in preconstruction phases, and enables the managers and headquarters to predict and handle schedule risks by sharing information about risks on the blogs.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.578-582
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• 2008

The domestic construction companies have implemented a various of management methodology and tools for time management. However, the work completion rate versus work plan have a big difference with the planned work completion rate previously despite of implementing the time management methodology and tools. The research searches the problems that the previous time management process and tools focusing on the management factors that can be controlled. Also, It suggest the improvement direction for these limits.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.6 no.3
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• pp.413-422
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• 2016

A construction manager tries to complete a construction project within its duration and budget using available resources. Schedule networks such as Bar-chart and CPM(critical path method) are used to finish the project within the duration. A survey shows that small contractors prefer Microsoft Excel to commercial time management softwares to manage construction time in their fields, because the Excel is useful to control cost with schedule and few time management experts works in the small contractors. A college produces talented graduates who are able to manage time of a construction project. But the quality and quantity of college eduction for time management is insufficient. Another survey shows that majors in Architectural engineering of local national universities have the curriculum for time management, and teach mainly the theory of network scheduling and how to make the network schedule. The several majors have classes for the theory and exercise of commercial time management softwares in several majors. It is necessary to educate time management experts able to use Bar-chart and commercial time management softwares for the small contractors.

• Proceedings of the Safety Management and Science Conference
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• 2002.11a
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• pp.215-220
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• 2002

건설현장 재해가 차지하는 국가적 손실을 감소시키기 위해 그동안 정부 및 관계기관과 많은 건설사들의 노력에도 불구하고 건설현장 작업 공정상 중대 사고들이 끊이지 않아 이에 대한 실증적 연구가 절실히 요구되고 있다. 현재 건설업의 안전관리 시스템은 유해·위험방지계획서 제도를 시행하고 있으나, 기존의 다른 자료를 답습한 내용이 대부분이고, 대규모 공사인 경우는 유해·위험방지계획서 작성 자체도 큰 부담을 갖을 수밖에 없는 현실에서 실질적인 수행이 어려운 실정이다. 그리고, 공사 착공 후 잦은 설계변경과 공법 변화 등에 따른 위험 요인에 적절히 대응하지 못하는 문제점이 도출되고 있다. 이러한 연유로 각각의 작업공정 개시전 공정별 작업 안전계획을 수립하여 적기에 능동적이고 유기적인 사전위험요인 제거가 가능한 공정안전관리기법(PSM: Process Safety Management)을 건설분야에 도입하여 시행하는 것이 필요하다고 사료된다. 본 논문에서는 이러한 문제점을 해결하고자 건설현장에 핵심공정에 대한 사전 안전성 확보로 재해를 예방하는 P.S.M. 기법을 도입하여 건설업 중대재해를 예방하는 방안을 찾아보고자 한다.

• 월간 기계설비
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• s.259
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• pp.48-49
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• 2012

공정거래위원회는 하도급거래에서 서면계약 문화와 공정한 하도급 거래질서의 조기정착을 위해 건설업 표준하도급계약서에 수급사업자의 계약이행 보증부담 경감조항(장기계속공사 연차별 계약 이행 완료 시 이행완료부분에 대한 계약이행보증금 반환)을 신설하는 등 '건설업종 표준하도급계약서'를 대폭 개정해 지난 1월 5일부터 시행에 들어갔다. 이번 표준하도급계약서 개정은 그동안 대한설비건설협회가 수차례 건의한 것으로 공정거래위원회가 의견수렴 및 협의를 거쳐 추진됐다. 공정거래위원회는 원사업자와 수급사업자간의 공정한 하도급거래 질서의 정착을 위해 하도급법 제3조의2에 따라 건설업 표준하도급계약서를 작성 보급하여 사용토록 권장하고 있다. 이 자료는 협회 홈페이지(www.kmcca.or.kr)의 <커뮤니티-협회내공유자료>에서 다운로드 받을 수 있다.

• Tunnel and Underground Space
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• v.19 no.3
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• pp.167-173
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• 2009

Underground storage cavern is known as the most complicated underground project because of the complexity of construction schedule, tunnel size, and geological problems. In order to optimize the construction schedule of underground storage cavern, two up-to-date technologies were applied. The first technology was 3 dimensional visualization of complicated underground structures, and the second was 4 dimensional simulation considering construction resources, geological conditions and construction schedule. This application case shows that we can achieve optimized construction schedule in the ways to optimize the number of work teams, fleets, the sequence of tunnel excavation, the commencement time of excavation and the hauling route of materials and excavated rocks. 3 dimensional modeling can help designer being able to understand the status of complicated underground structures and to investigate the geological data in the exact 3 dimensional space. Moreover, using 4 dimensional simulation, designer is able to determine the bottle neck point which appear during hauling of excavated rocks and to investigate the daily fluctuation in cost.