• 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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    • v.42 no.4
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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.

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

  • 이승훈
    • Korean Institute of Interior Design Journal
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    • no.17
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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.
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.11a
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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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Design criteria and Case History of Korean Railway for Auger-drilled Pilling (철도분야 매입말뚝 설계기준 및 적용 현황)

  • Lee, Su-Hyung;Choi, Jeong-Hwan;Hwang, Seon-Keun;Eum, Ki-Young
    • Proceedings of the Korean Geotechical Society Conference
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    • 2008.10a
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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
    • International conference on construction engineering and project management
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    • 2009.05a
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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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Diversification of Financial Method for Effective Practice of Construction Projects (건설사업의 효율적 수행을 위한 파이낸싱 다양화 방안)

  • Han Sang-Hun;Han Choong-Hee;Kim Sun-Kuk
    • Korean Journal of Construction Engineering and Management
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    • v.4 no.2 s.14
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    • pp.99-108
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    • 2003
  • Recently, the construction companies are forced to cut down the investment amount due to increasing financial problems caused by severe recession and restructuring in the financial market as well as the long-term depression of the construction industry. To overcome this type of problems, a great many efforts have been made. An alternative may be adopting the advanced financing methods. However, during the course of enforcing process of the financing methods, many problems are revealed without any proper solutions being proposed. Therefore, the fundamental problems need to be solved through comprehensive and systematic approach under the changing environment of construction financing. In this paper, as a result of reviewing some financing methods such as ABS, REITS, and Project Financing, multiple business strategies for construction companies to cope with the changing construction market are found in the sense of effectiveness in implementing construction projects. Further, this paper presents diversified financing methods for the effective practice of construction projects through combination of above mentioned methods, and also proposes improvement plans to strengthen the financing function for the construction industry.

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

  • Chang, Min Jung;Noh, Hayeon;Lee, Jangik I.
    • Korean Journal of Clinical Pharmacy
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    • v.23 no.4
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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.

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

  • 유길환;김영수;황대영;곽정민;정성교
    • Proceedings of the Korean Geotechical Society Conference
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    • 2002.10a
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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
    • International conference on construction engineering and project management
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    • 2020.12a
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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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    • v.4 no.2
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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%.