• Title/Summary/Keyword: construction situation

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Comparative Analysis of On-site Construction Management in Korea and Japan (건설현장 관리기술에 대한 한·일간 비교분석 예비연구)

  • Song, Sang-Hoon;Sohn, Jeon-Grak
    • Journal of the Korea Institute of Building Construction
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    • v.10 no.6
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    • pp.27-38
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    • 2010
  • Considering the similarity in legislation and long-term industrial trend of Korea and Japan, continuous attention to the Japanese situation is useful for the development of a domestic construction strategy. In order to compare the current on-site construction management practice of the two countries and analyze the reasons for discrepancy, a literature review, expert interview, and site investigation were executed. A detailed survey of experts with experience in both countries revealed that overall, Korea's level of competitiveness is gaining on that of Japan. However, the Japanese construction industry was still evaluated as maintaining higher competitiveness, due mainly to comprehensive planning for operation, well-established design documents, and effective total quality safety environment management, all of which are combined with institutional support and a cooperative attitude by labor. Adjustments should be made for advanced technologies considering the attributes of a typical Japanese construction prior to establishing and implementing application strategies according to the suggestion of experts. Based on the results of this study, a benchmarking of Japanese strength should be conducted, and this is eventually expected to contribute to establishing green construction, enhancing safety, improving culture, and reinforcing the capabilities of participants.

Extraction of the Key Performance Indicators of Construction Management Using Balanced Score Card (균형성과표를 활용한 건설사업관리의 핵심성과지표 도출)

  • Lim, Wooseok;Jung, Jihyun;Lee, Hakki
    • Korean Journal of Construction Engineering and Management
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    • v.16 no.6
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    • pp.22-30
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    • 2015
  • Enterprises should set up realizable goals and continually control the goals from apprehending whether they can be realized or not so that the enterprises grow consistently. Furthermore, from supplementing parts to be improved, goals are reset and the result should be controlled in order to fit to them. Lately, a lot of discussions about the results of organizations, projects, and companies are being realized in construction field. Particularly, in construction management, effective and professional control activities throughout the life cycle of facilities as well as the stage of business implementation of construction work are needed. About the result measurement of the construction management, lots of most domestic researches stay in the level of establishing basic concepts. Also, since characteristics of the construction field and the construction management were not reflected properly, it is in a situation that the result control system is not applied to on-site real works. Hence, this study intends to suggest fundamental data for measuring objective results from extracting result areas and key performance indicators of the construction management using Balanced Score Card.

Study on the Risk Factors of Construction Projects since COVID-19 (COVID-19가 건설프로젝트 리스크에 미치는 영향)

  • Lee, Jae-Hyun;Lee, Seong-Hyeon;Lee, Donghoon
    • Journal of the Korea Institute of Construction Safety
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    • v.4 no.1
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    • pp.1-8
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    • 2021
  • COVID-19, which is currently in vogue, is a pandemic with the largest number of deaths since the establishment of the "World Health Organization". It is also expected to have a significant impact on countless construction projects. After COVID-19 hit the construction industry, the risk that they needed to cover, decreased every year. However, the prolonged COVID-19 increased the risks of air delays, material supply, and economic losses. The exact measurements will be needed to be identified and the risks of the current construction projects must have a mitigated risk with a greater proportion. Therefore, the purpose of this study is to analyze and identify the risks that have influenced construction projects to the domestic construction companies due to COVID-19. Based on the risks of the previous construction projects, risk case studies, and risks related to COVID-19, are extracted through surveys, weights. Each risk factor are calculated based on the AHP analysis technique. Thus, it is expected that the results of the risk research on construction projects will change due to COVID-19. It will be presented to cope with the current situation and later pandemic situations.

Information Flow During Individual Model Construction and Group Model Construction Type in the Sound Propagation Model Co-Construction Class (소리의 전달 모형구성 수업에서 나타난 개인모형 구성 단계 중 정보의 흐름과 모둠모형 구성의 유형)

  • Park, Jeongwoo;Yoo, Junehee
    • Journal of The Korean Association For Science Education
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    • v.38 no.3
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    • pp.393-405
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    • 2018
  • In this study, we classified the group model construction types in the actual classroom situation implementing the instructional strategy mixed with individual model construction and group model construction types. The purpose of this study is to analyze the information flow and the individual construction types of each group model construction type to obtain implications for model co-construction in a real classroom environment. A two-session class on sound propagation was carried out for thirty-three 8th grade students in Seoul. A total of 65 individual model construction and 16 group model construction processes were collected and analyzed. The group model construction types were classified as unchanged, enumerated, and elaborated. The unchanged type was found in 8 groups, the enumerated type in 3 groups, and the elaborated type in 5 groups. The isolated individual and independent construction (i.I) were found mostly in the unchanged group construction type (50.0%) and enumerated group construction type (54.5%). In the unchanged type, the radial shape of flow in which one student's information is transmitted to all the members of the group appeared. In the enumerated type, the starting point of the information flow was observed from two individuals. In the elaborated type, linear information flow appeared and both the second dissemination and reflective construction (2d.R) contributed to the group model construction (58.3%). This study suggests a viewpoint that enables to understand the process of complex model construction in an actual classroom context rather than in an ideal situation. The result of this study suggests the necessity of a modeling strategy considering the characteristics of Korean small group culture. It is expected that the discussion will progress through further studies.

3D Knowledge Retrieval for e-Learning Construction (이러닝 구축을 위한 3D 지식 검색)

  • Kim, Gui-Jung;Han, Jung-Soo
    • The Journal of the Korea Contents Association
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    • v.10 no.7
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    • pp.63-69
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    • 2010
  • This research does focus on supporting all of formal, or informal learning at real time. From industry or education field, learning training is according to worker's current situation or business context. And according to worker's current situation, or business flow, 3D immersion knowledge visualization is effective in the individual ability and the learning progress For this, workers listen to compound knowledge coaching advices at real time. Therefore we developed the realistic 3D based knowledge retrieval method to identify and retrieve multidimensional relation easily.

Construction of IAST Model for Agile Process Design with Holistic Concept (전체론적 접근으로서 기민한 프로세스 디자인을 위한 IAST 모델의 건설)

  • Leem, Young-Moon
    • Journal of Korean Institute of Industrial Engineers
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    • v.24 no.1
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    • pp.1-9
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    • 1998
  • In a competitive environment, systems design should be agile to accomplish business goal. However, there are often significant problems with systems design that is manifested in the fact that there are no current techniques to apply rigorous mathematics to semantic conveyance in the design framework. As a promising solution, this paper introduces situation theory (ST) and provides an application of ST for information flow in manufacturing systems design (IDEF0). The described work in this paper addresses the procedure of creation of IAST Model (Inf-Act On in Situation Theory) which is the first application of ST in engineering fields. Finally, we show that IAST Model is very helpful for effective information capturing in systems by comparison existing methodology with developed methodology as a practical application of ST.

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Hierarchy, Construction, or Mentality: Capacity-Limiting Government Actions in the 2008 Sichuan Earthquake of China

  • Sun, Jingran;Li, Xiangyu
    • Journal of Contemporary Eastern Asia
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    • v.14 no.2
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    • pp.37-44
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    • 2015
  • Many people criticized how the Chinese government responded to the Wenchuan Earthquake. They focused on how it failed to address the psychological needs of the survivors. The study presented here approached this issue from a human resources perspective. It was determined that the Chinese government approached the situation in a bureaucratic way that limited the government's capacity and barred non-profit organizations and community groups from participating. It was also found that survivors could not contact these organizations for psychological support. This study concludes that the situation called for a more flexible and improvised institution that would respond to the emerging needs of survivors.

A study of a plan for better curing methods through a reseach for a field of construction work (동절기 콘크리트 양생방법의 현장 실태조사 및 개선방안에 관한 연구)

  • Park Sung-June;Moon Hyung-Soo;Kim Chang-Duk
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.379-382
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    • 2003
  • Construction concrete needs to maintain suitable environment which contains temperature and humidity etc. Then concrete shows own strength. The environment is not regular and contains many variables. Especially the climate element occupies many parts of variables. We have the climate environment which goes down to $-4^{\circ}C$. The factor that obstruct to construction is the failure at a construction progress. But it must be processed to be scheduled. Therefore we have to do the special care for factor of climate that obstruct to construction. We must make assurance doubly sure at the quality of concrete. We need maintenance of temperature and humidity for the hardening until the requirement period after a concrete pured in. We must do the care of curing sufficiently not to take the influence of injurious activity. This causes strength of concrete. Specific method of curing is according to each situation which is environment element. We wish to analyze curing course in construction of concrete at the paper. Also we wish to predict the problem as to consider curing and suggest the improvement plan through the paper.

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Recent Status on the Recycling of Construction Waste and Research Trends - The Current Situation of Recycling Technology for Waste Resources in Korea(4) - (건설폐기물(建設廢棄物)의 리싸이클링 현황(現況)과 연구동향(硏究動向) - 국내자원(國內資源)의 유효이용(有效利用)을 위한 처리(處理) 및 회수기술동향(回收技術動向)(4) -)

  • Oh, Jae-Hyun;Kim, Mi-Sung;Shin, Hee-Duck;Min, Ji-Won
    • Resources Recycling
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    • v.17 no.2
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    • pp.16-29
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    • 2008
  • According to the statistical data of the Ministry of Environment, 47million tons of construction waste were generated, and 96.7% of them was recycled in 2005. However, the recycled products seem to be remained under low quality. Because mixed demolition and construction waste, so called DC Waste, including concrete, brick, plaster, lumber, plastics building materials, paper and some dirt and stone, is very variable and difficult to estimate its exact composition, it is regarded as having little or no value to the construction industry. 'The Research group on recycling of construction waste' was started by the Housing & Urban Research Institute(KNHC), which is sponsored as a large scale national project by the Ministry of Construction and Transportation. This research group intends to establish recycling system through planing, processing, developing practical technology, and eventually contribute to save natural resource and to vitalize the industry. In this paper an overview of DC waste management and recycling technology is given in some detail. Particularly, "recycling law of construction waste" and recent research trends on recycling of construction waste are discussed.

Building an Ontology based on the Unified Construction Information Classification System (통합건설정보분류체계 기반 건설정보 온톨로지 구축)

  • Kim, Hak-Lae;Park, Eui-Jun;Kim, Hong-Gee;Yoon, Suk-Hun
    • The Journal of Society for e-Business Studies
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    • v.9 no.3
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    • pp.95-112
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    • 2004
  • Recently, extensive research has been conducted on classification systems for managing a huge amount of information with various froms in the construction industry. Classification Systems such as ISO/DIS 12006-2 and MasterFormathave been proposed as international standards, and accommodating them for Korean situation the Korean Ministry of Construction and Transportation has proposed the Unified Construction Information Classification System. As the construction industry becomes bigger and more complicated, however, the need for higher-level semantic representation of construction information has been recognized. In this study we develop a prototype ontology based upon the Unified Construction Information Classification and suggest a practical way of applying an ontology technology to the construction information systems. An ontology is a useful tool to effectively manageconstruction information and to support interoperability among heterogeneous information systems by clarifying the semantic relationship between concepts.

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