• Title/Summary/Keyword: construction practice

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DEVELOPMENT OF BEST PRACTICE GUIDELINES FOR CFD IN NUCLEAR REACTOR SAFETY

  • Mahaffy, John
    • Nuclear Engineering and Technology
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    • 제42권4호
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    • pp.377-381
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    • 2010
  • In 2007 the Nuclear Energy Agency's Committee on the Safety of Nuclear Installations published Best Practice Guidelines for the use of CFD in Nuclear Reactor Safety. This paper provides an overview of the document' contents and highlights a few of its recommendations. The document covers the full extent of a CFD analysis from initial problem definition and selection of an appropriate tool for the analysis, through final documentation of results. It provides advice on selection of appropriate simulation software, mesh construction, and selection of physical models. In addition it contains extensive discussion of the verification and validation process that should accompany any high-quality CFD analysis.

목조혼합구조 건축의 공간분석에 관한연구 -일본의 현대목조건축을 중심으로- (Study on Spacial Analysis of Mixed Wooden Construction -In Reference to Contemporary Architecture in Japan-)

  • 이승훈
    • 한국실내디자인학회논문집
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    • 제17호
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    • pp.223-233
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    • 1998
  • We intend to illustrate how contemporary architects have conceptualized spaces with words. Language practice is so much important work for the contemporary architects as designing realistic building (material practice) As this point of view we need to interest in theses of architects which contains their unique ideas an characters. The purpose of this study is for understanding how contemporary japanese architects embody through special conception when day design the mixed wooden construction and for looking for the possibility of the development of it. As a result the mixed wooden construction candy understood as an expression form how an architects things about relationship between parts and parts, parts and the whole and the character of materials that consist it and such relationship is determined by the requirement of space.

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Design Practice of Transverse Spiral Reinforcement of Piles in Accordance with AASHTO LRFD Bridge Design Specification

  • Kim Yeong Seon;Song Jong Young;Park Kyoung Lae;Choi In Ki;Yang Byung Hong;Flett Innes D.
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2005년도 추계 학술발표회 제17권2호
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    • pp.221-224
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    • 2005
  • The purpose of this study is to introduce design practice for transverse reinforcement in piles where the top of the pile is free-standing above the ground in accordance with AASHTO LRFD Design Specification. Based on the relevant requirements, the amount and spacing of transverse spiral reinforcement is given for the two different pile types, namely piles with pile cap and pile bents. In addition, a recommended design procedure is introduced depending on the predicted behaviour of the piles from the analysis.

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철도분야 매입말뚝 설계기준 및 적용 현황 (Design criteria and Case History of Korean Railway for Auger-drilled Pilling)

  • 이수형;최정환;황선근;엄기영
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2008년도 추계 학술발표회
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    • pp.541-548
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    • 2008
  • Active application of auger-drilled piling is expected in Korea considering its advantage in noise and vibration problems against driven piling and its cost-effectiveness in comparison to the cast in-situ piling. The current design practice being used in Korea is adopted from the Japanese one, however the equipment and construction procedure is modified for the geotechnical conditions and construction circumstances in Korea. Therefore there is an urgent need for the establishment of the rational design criteria for the auger-drilled piling in Korea. As the preliminary work for the establishment, this paper presents the current practice in Korean railway constructions. Design criteria of Korea Railway Network Authority are introduced and its characteristics and the problems are described. Application cases of auger-drilled pile to railway construction are introduced as well.

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ROLES AND RELATIONSHIPS BETWEEN ARCHITECTS AND CONTRACTORS BASED ON CONTRACTOR-DESIGNER ISSUE IN JAPAN

  • Sayaka Nishino;Shin Takamatsu;Shuzo Furusaka
    • 국제학술발표논문집
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    • The 3th International Conference on Construction Engineering and Project Management
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    • pp.758-763
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    • 2009
  • In Japan, it has been argued between architects and contractors that which process is desirable, the traditional process or the design-build process. It is called the contractor-designer issue. In 1968, Kajima Corporation chairman Morinosuke Kajima and the Japan Architects Association had a public controversy over it. On the other hand, in practice, architects and contractors have secured quality of buildings thorough a close communication in the design and construction process of building. What are the relationships between architects and contractors? What roles do architects and contractors have in practice? This study has two aims. First one is to analyze the contractor-designer issue based on roles and relationships between architects and contractors, and then to show conflicts between them. Second one is to consider issues which architects face in the relationships with contractors.

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건설사업의 효율적 수행을 위한 파이낸싱 다양화 방안 (Diversification of Financial Method for Effective Practice of Construction Projects)

  • 한상훈;한충희;김선국
    • 한국건설관리학회논문집
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    • 제4권2호
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    • pp.99-108
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    • 2003
  • 경기침체와 금융산업의 구조조정으로 건설업체의 신규사업을 위한 자금조달은 악화되어 건설투자를 감소시키고 건설산업의 전반적인 침체로 이어지고 있다. 건설사업의 효율적 수행을 위한 건설금융의 제약을 해결하기 위해, 프로젝트 파이낸싱, ABS, REITs 등 다양한 금융기법이 도입되었으나 아직까지 활성화되기에는 여러 문제점이 남아있다 건설업체의 재무구조는 개선되고 정책변화와 사업다각화로 인하여 건설금융의 기본적인 수요가 바뀌는 등 최근의 건설금융환경은 변화하고 있다. 이에 건설금융의 근본적인 문제점을 극복하고 종합적이고 체계적인 개선방안을 도출할 필요가 있다. 본 연구에서는 변화하는 건설시장에 대응하기 위한 건설업체의 사업다각화 전략을 모색하고, 프로젝트 파이낸싱, ABS, REITs의 결합과 개선을 통해 건설금융을 활성화시켜 건설사업의 효율적인 수행을 위한 재원조달을 다양화하는 방안을 도출하고자 한다.

6년제 약학대학에서의 필수실무실습 현황과 평가 - 병원약국실무실습 중심으로 - (Construction and Evaluation of the Student Practice Program in the Hospital under the 6-year College of Pharmacy Curriculum)

  • 장민정;노하연;이장익
    • 한국임상약학회지
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    • 제23권4호
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    • pp.300-306
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    • 2013
  • Background: 6-year College of Pharmacy curriculum had started in Korea, and the students in college of pharmacy are supposed to have student practice in the hospital pharmacy, community pharmacy, pharmaceutical company and administration to experience the role of pharmacists in advance. However, despite Korean Association of Pharmacy Education provided its own teaching plan, most Pharmacy Schools and the hospital pharmacy have difficulty in performing the desirable student practice program because they seldom experienced it. So, we reported the student practice program in the hospital pharmacy conducted by Yonsei University College of Pharmacy prior to the other numerous universities and the evaluation of survey on the student pharmacy practice program. Method: Severance Hospital, Gangnam Severance Hospital and National Health Insurance Service Ilsan Hospital took part in the student pharmacy practice program of Yonsei University. Students took 8-week pharmacy practice in Severance Hospital or Gangnam Severance Hospital plus 4-week pharmacy practice in National Health Insurance Service Ilsan Hospital. Also, students had once-a-week presentation class at school. A survey was conducted to evaluate the student practice program. Results: The presentation class was considerably helpful to share their own experiences at different practice sites in different hospitals, but there were some disadvantages that students could not experience the specific pharmacy practice site on the day of once-a-week presentation at school and so on. The results of the survey on the student practice program reported that students were satisfied with the overall practice program and presentation class at school. Also, they answered that the student practice program in the hospital pharmacy was significantly helpful for planning of the future career. Conclusion: Through the performance of the student practice program in Yonsei University, the adjustment of the student practice program in the hospital is planned to provide better experience of practice to the students and the results will be helpful for the student practice in the hospital of the other colleges of pharmacy.

대심도 해저 쉴드터널 안전시공을 위한 계측관리 (Monitoring management for safely construction of deep shield tunnel)

  • 유길환;김영수;황대영;곽정민;정성교
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2002년도 가을 학술발표회 논문집
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    • pp.319-326
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    • 2002
  • During the construction period of submarine shield tunnel, which is built firstly in very soft marine clay layer 40m deep in Korea, wide range problems were encountered such as safe launching against high earth pressure at shield entrance, technique of shield face pressure control when passing through complex multi-layered soils This paper introduces successful construction practice through development of state-of-the-art construction method and field monitoring.

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Challenges and suggestions of resource planning for standardized concurrent construction

  • Chen, Xingbin;Li, Sining;Kim, Jung In;Fang, Yuan
    • 국제학술발표논문집
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    • The 8th International Conference on Construction Engineering and Project Management
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    • pp.41-49
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    • 2020
  • Concurrent construction offers considerable improvement for shorten the project duration of its production process. Therefore, standardized concurrent construction is widely applied in building construction projects. However, resources planning for standardized concurrent construction project is manually developed by construction manager. This practice is not effective since it is time-consuming and error-prone for managers to identify all project-specific information, distinguish different activity-resource types, interpret these types and analyze how they affect resource allocated on an ad hoc basis. Therefore, this research investigates the opportunity for leveraging activity modeling to enable automated resource planning for standardized concurrent construction during project development, with identifying the characteristics of construction activities under standardized concurrent planning and determining the activity-resources types that affects resource planning. Both will function as a basis for modeling these construction activities in a computer-interpretable manner and for automation in resource planning.

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Practical Issues in Application of RFID to Pipeline Construction and its Benefit Analysis

  • Yun, Ki Cheol;Oh, Chi Don;Cho, Nam Ho;Kim, Kyong Ju;Park, Chan Sik
    • Journal of Construction Engineering and Project Management
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    • 제4권2호
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    • pp.1-7
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    • 2014
  • Radio Frequency Identification (RFID) has been applied to the construction industry for improving the efficiency of material and process management. Most RFID-related studies have focused on building or plant construction. The application of RFID has been limited in pipeline construction projects where materials are stored and stacked across a large construction site. This paper investigates practical issues in pipeline construction, improves the read rates of RFID tags, and tests their utility by putting them into practice. This paper demonstrates the benefits that may be expected with the use of improved RFID tags and the development of an automated pipeline construction management system. As a result, pipeline construction management time decreased by 28 hours per month compared to the conventional method. Cost decreased by about 26%.