• Title/Summary/Keyword: Plant construction

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Establishment of Construction Procedure on the Off Shore Piping Work of a LNG Unloading Project (LNG 하역 플랜트의 Off Shore 배관시공절차 확립에 관한 연구)

  • Kim, Yong-Tan;Moon, Seung-Jae;Yoo, Hoseon
    • Plant Journal
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    • v.5 no.4
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    • pp.80-85
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    • 2009
  • LNG stevedoring plant offshore pipelines requires human power and the longest construction period in constructing LNG storing terminal and influences on the success of the project absolutely. In this paper, the constructing procedures of LNG stevedoring plant offshore pipeline was established. Establishment of constructing procedures of LNG stevedoring plant offshore pipeline includes procurement of main equipments, iron frame and pipelines. To predict any expectable problems, that may occur by the stage of construction the application to the field works with a base of theoretical and practical contents for the constructing procedures of LNG stevedoring plant offshore pipelines can be established.

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Front End Engineering and Design (FEED) for Project Management of Thermal Power Plant Construction

  • KIM, Namjoon;JUNG, Youngsoo
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.415-419
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    • 2015
  • Engineering is a value-adding process applying knowledge and skills in the construction industry that includes the planning, feasibility study, project management (PM), front end engineering and design (FEED), detail design, procurement, construction, supervision, and operation. Among these engineering activities, FEED is defined as a comprehensive design practice in the early design phase focused on conceptual design and basic design. It is a particularly influencing area that determines the competitiveness of procurement and construction capability of construction firms (KNIN 2013). Nevertheless, previous studies in FEED have been limited to the design process, deliverable, or particular management technique (e.g. system engineering, collaboration, information etc.). In this context, the purpose of this study is to propose a comprehensive FEED business process structure for project management of thermal power plant construction projects encompassing the entire project life cycle. And an assessment methodology for FEED functions was developed. It is expected that the proposed structure of FEED functions and FEED evaluation methodology will contribute to improvement of competitive capability of engineering, procurement, and construction (EPC) companies.

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Risk Assessment and Contingency Prediction considering Work Characteristics for Modular Plant Construction Projects (모듈러 플랜트의 업무특성을 고려한 위험 평가 및 예비비 예측)

  • Kang, Hyunwook;Kim, Jongwook;Kim, Yongsu
    • Korean Journal of Construction Engineering and Management
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    • v.19 no.5
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    • pp.81-89
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    • 2018
  • The purpose of this study is to assess the risk and predict the contingency for modular plant construction projects. Considering the work characteristics of the modular plant, The adapted research method is that suggest models for assessment impact of risk and predict the contingency considering risk. Based on the proposed models, It is selected one modular plant construction project and assessment impact of risk factors and predicted the contingency. The results of this study are as follows: Assessment the probability of occurrence of risk factors and intensity of impact, and extract 15 important risk factors. These are classified as Engineering, Procurement, Fabrication, Transportation, Construction phases to consider the work characteristics of the modular plant. The predicted contingency is that 6.739%(Engineering 2.850%, Procurement 6.225%, Fabrication 6.211%, Transportation 4.165%, Construction 8.168%) to prepare the basic business expense. The model is used as a way to derive quantitative results in the decision-making process for risk management in construction projects.

Risk Factors Analysis and Quantitative Risk Assessment Model for Plant Construction Project (플랜트 건설 리스크 분석 및 리스크 정량화 모델 개발에 관한 연구)

  • Ahn, Sung-Jin;Kim, Tae-Hui;Nam, Kyung-Yong;Kim, Ji-Myong
    • Journal of the Korea Institute of Building Construction
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    • v.19 no.1
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    • pp.77-86
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    • 2019
  • Due to the increasing demand for and complexity of plant construction projects, unpredictable risk factors are on the consequent increase. For that reason, the quantitative risk analysis is being called for, in order for the development of a risk assessment model using risk indicators for the plant construction projects. This study used the claim payout data collected at a global insurance company to reflect the actual financial losses in plant construction projects as dependent variables in the risk assessment model. In terms of independent variables, the geographic information, i. e., landform, and the construction information including test-run, schedule rate, total cost and duration are adopted. In addition, this study suggests that the regression model containing such independent variables that are statistically significant can be applied to as a foundational guideline for the plant construction project risk analysis during the phase of construction and commissioning.

Improving Remodeling Process of Plant Dormitory Based on User Demand (사용자 요구기반 공장기숙사 리모델링 프로세스 개선)

  • Koo, Kyo-Jin;Park, Sang-Hun;Park, Hyung-Jin;Kim, Cheol
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2012.05a
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    • pp.321-322
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    • 2012
  • Since 1980, rapid social and economic development due to increased plant construction has led to a plant dormitory in a short period. In recent years, by the advent of the durability of dormitory remodeling is a critical need. However, user requirements due to the lack of owner's budget do not reflected. As a result, users have complained about the scope of construction, and construction stakeholder in accordance with the budget efficiency of the complaints have decreased. In this study the remodeling requirements in the planning stages is proposed for the remodeling process. In addition work type and element can select a range of construction worksheet are proposal.

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Penetration of Korean EPC Companies into International Market for Nuclear Power Plant (플랜트 EPC 기업의 해외 원자력 발전 프로젝트 진출방안)

  • Cho, Chan-Hyoung;Moon, Seung-Jae;Yoo, Hoseon
    • Plant Journal
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    • v.5 no.3
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    • pp.66-73
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    • 2009
  • This study aims to develop a strategy for South Korean companies to penetrate into the global NPP(nuclear power plant) market with their strength as the sixth biggest nuclear power generator in the world. With 20 nuclear plants in commercial operation and 6 more in construction, South Korea has the best technology in construction and operation of NPP. Despite these capabilities as demonstrated on its domestic market, Korean companies' constraint to enter and play a key role in global NPP market would be the lack of experience in overseas NPP projects, original technologies, and diplomatic effectiveness. This study analyzes the competitiveness of Korean standardized nuclear power plant, construction management skills, construction technologies, manufacturing equipment and materials and operation skills. In this research the current status of existing NPP and the forecast of building NPP according to countries was analyzed in order to work out strategies with technology, cost-effectiveness, and diplomatic consideration.

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Evaluation of Construction RCB Exterior Wall Formwork according to Placing Height on Nuclear Power Plant

  • Song, Hyo-Min;Sohn, Young-Jin;Shin, Yoonseok
    • Journal of the Korea Institute of Building Construction
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    • v.15 no.6
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    • pp.653-660
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    • 2015
  • Technologies for reducing construction duration are key factors in nuclear power plant construction projects, as a reduction in construction duration at the construction phase leads to a reduction in construction cost and an increase in profits through the early operation of the nuclear power plant. To analyze the constructability of the height of single-layer placement of formwork for the Reactor Containment Building (RCB) exterior wall through lateral pressure according to the height of concrete placement, the deformation criteria for formwork, and a new form design, 'MIDAS GEN (hereinafter referred to as MIDAS)' is used in this study. The cost and workload of formwork are derived according to the unit of height of the RCB exterior wall. Based on the result, it was found that the higher the RCB exterior wall, the higher the material cost, and the less the construction duration and the less the total number of formwork layers. Based on this result, it is believed that the material cost and the construction duration can be appropriately determined according to the formwork height.

Evaluation of CM Capability based on Business Functions for International Plant Construction (해외 플랜트 건설사업관리 업무기능별 역량분석)

  • Ha, Jiwon;Jung, Youngsoo
    • Korean Journal of Construction Engineering and Management
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    • v.15 no.6
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    • pp.3-15
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    • 2014
  • Ever expanding overseas construction is one of the most important issues for Korean construction companies. Among these issues, strategies for overseas plant construction have widely been discussed, because the plant construction has features of low competitiveness and high ripple effects when compared with other construction sectors. In this sense, the purpose of this research is to evaluate the CM capability of Korean construction industry for overseas plant construction. Fourteen construction business functions and four techniques were defined first. Based on these functions and techniques, CM capability was quantified for As-Is (2013), To-Be (2018) and Gap analyses. Findings of this research reveal that 1) capability for construction is quite competent, 2) capabilities for planning, design management, contracting, and risk management are found to be relatively low, where higher value can be added. In addition, it is found that R&D needs to be extended to develop systemized management techniques. It is also required to secure specialists and original technologies at national industrial level.

Development of a Decision Making Model for Construction Management in LNG Plant Construction - Focused on Construction Stage - (LNG 공사의 건설사업관리 의사결정지원모델 개발 - 시공단계 중심 -)

  • Park, Hwan Pyo;Han, Jae Goo;Chin, Kyung Ho
    • Korean Journal of Construction Engineering and Management
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    • v.15 no.3
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    • pp.47-57
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    • 2014
  • LNG plant projects tend to be implemented in overseas owing to its characteristics, so their project management scheme is somewhat different from those of general projects. Value chain in a LNG plant project includes exploration/production of gases, physical liquefaction/chemical conversion processes, transportation and storage. Key factors in the chain include liquefaction process (including ultra-low temperature liquefaction) to convert natural gas into liquid materials or fuel, and Front End Engineering Design (FEED) package, as well as Engineering, Procurement and Construction (EPC) technology comprising control, operation and construction. Success of a complex LNG plant project implemented in overseas depends on decision-making process in project management. Accordingly, to develop a decision-making model in of plant construction, the study extracted none factors in project management by EPC stage and assessed importance of each factor. The result showed that items in both project management and project risk management are important. Especially, the study developed a decision-making model in the construction stage of a LNG plant project based on the project management factors and importance assessment. The developed decision-making model would lay groundwork in building a decision-making system in construction stage of project management.

Risk Classification and Relational Database Schema in Overseas Power Plant Construction (해외 발전플랜트 리스크 분류체계 및 관계형 데이터베이스 구축 방안)

  • Kim, Min;Jung, Youngsoo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2014.05a
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    • pp.192-193
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    • 2014
  • Due to the decreasing domestic construction market since 2007, Korean construction companies are expanding overseas market. As a result, the international market share by Korea has been continuously increased and achieved 65.2 billion dollars in 2013. Despite of such visible results, profitability concerns are constantly arising. It is pointed out that the low-priced bid competition between Korean construction companies and various unpredictable risks are the most crucial factors which aggravate the profitability in the overseas projects. From this point of view, predicting the risks in advance and controling them could be the most important tasks to improve the profitability. This research proposed 202 risk factors with a hierarchy and relational database schema for power plant construction, which is based on the 24 risk classifications in previous research (Kim & Jung 2013). Proposed risk classification and relational database schema could be utilized as the basic data in risk management system.

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