• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2002년도 학술대회지
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• pp.474-477
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• 2002

최근 정보기술은 여러 산업분야에 접목되어 보이지 않는 많은 효과를 창출하고 있다. 건설분야에서도 이러한 정보기술을 통한 정보화가 단계적으로 진행되고 있다. 유지관리 분야는 건설 제 단계 중 관심 및 중요도가 점차 고조되고 있는 분야로 시설물의 공용기간동안 체계적인 관리기법을 도입하여 생애주기비용을 최소화하며, 시설물의 기능을 향상시키려는 유지관리 주체들의 분주한 움직임이 한창이다. 본 연구는 이러한 주변환경에 부합하여 가장 효율적인 시설물 유지관리 정보시스템을 도입하기 위한 방향을 수립하는데 주요 초점을 두었다. 따라서 본 연구에서는 먼저, 대상시설물을 선정하고 시설물별 유지관리 주체들에 대한 환경 및 현황분석을 실시한 후 그 결과에 입각한 정보시스템 도입방향을 제시하였다. 기존의 유지관리 관린 정보시스템의 문제점을 보완하고, 유지관리. 주체의 실무자들이 직접 수행하는 유지관리 관련 업무를 개선할 수 있는 방안을 도출하고자 하였다.

• 신재생에너지
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• 제8권3호
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• pp.38-46
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• 2012

Enhanced Geothermal System (EGS) among geothermal system types enables to produce sustainable energy even in non-volcanic region while conventional geothermal energy has been restricted to obtain only from hot and permeable formation such as in volcanic regions. Successful EGS project in terms of economy, however, can be expected only when the project is managed effectively considering most of influencing factors (e.g., tangible and intangible resources, cost, time, risks, etc.). In particular, well construction is of the utmost importance in geothermal project as it dominantly influences on time and cost in the whole project. Therefore, when it comes to viable geothermal project without abundant experience, managing drilling economically and efficiently is inevitable. In this study, a project management system for well construction in geothermal project based on project control system including work breakdown structure and cost account was developed to predict and assess the performance of drilling and to visualize the progress.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.99-106
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• 2011

Recent demands from construction industry have emphasized the capability for graduates to have improved skills both technical and non-technical such as problem solving, interpersonal communication. To satisfy these demands, problem-based learning that is an instructional method characterized by the use of real world problem has been adopted and has proven its effectiveness various disciplines. However, in spite of the importance of field senses and dealing with real problem, construction engineering education has generally focused on traditional lecture-oriented course. In order to improve limitations of current construction education and to satisfy recent demands from construction industry, this paper proposes a new educational approach that is Failure-Based Learning for using combination of the procedural characteristics of the problem-based learning theory in construction technology education utilizing failure information that has the educational value in the construction area by reinterpreting characteristics of construction industry and construction failure information. The major results of this study are summarized as follows. 1) Educational effect of problem-based learning methodology and limitation of application in construction area 2) The educational value of the information on construction failure and limitation in application of the information in construction sector 3) Anticipated effect from application of the failure-based learning 4) Development and application of the failure-based learning model

• 한국해안·해양공학회논문집
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• 제32권4호
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• pp.230-241
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• 2020

포항신항이 단계별로 완공된 후 제기되어 온 항내정온도 불량 문제는 항만가동율 저하의 주요 원인으로 제기되어 왔으며 이의 개선을 위해 2018~2020년 포항신항 외항방파제의 외해 측에 도제(Detached breakwater)를 건설하고 있다. 본 연구에서는 도제의 효과를 검증하기 위하여 도제 설치 전후로 취득된 항내외의 파랑 관측자료를 분석하여 항내에서의 파고감소율을 비교한 결과를 제시한다. 먼저 이전 수치모델 연구를 통해 예측된 파고는 항내 4개 지점 중 3개 지점에서 관측값과 비슷하게 나타났으며 나머지 1개 지점에서의 오차는 수치모델이 부두 안쪽에 발생하는 중복파 현상을 잘 재현하지 못했기 때문으로 판단된다. 도제 건설 전후 기간의 관측값을 비교한 결과 도제 설치가 항내정온도 개선에 기여한 것으로 나타났는데, 항내 4개 관측지점 모두에서 포항신항 정온 목표파고인 0.3 m를 초과하는 파고의 출현빈도가 도제 건설 후에 크게 감소하였다. 또한 항내외 파고를 비교한 항내 파고 감소율도 모든 파향에 대해 도제 건설 후에 유의미하게 개선된 것으로 나타났다. 본 연구결과는 적절하게 설치된 연안구조물이 항내정온도 향상에 기여하는 효과를 증명한 것으로 향후 유사한 경우의 문제 해결에 유용하게 적용될 수 있음을 보여준다.

• 한국건설관리학회논문집
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• 제17권2호
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• pp.49-57
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• 2016

국토교통연구개발 사업은 산학연 전문가 수요조사를 통하여 과제를 발굴하고, 세부 기획사업을 통하여 연구개발사업이 추진되고 있다. 이러한 연구개발사업은 대부분 국내 사업에 적용할 목적으로 추진되어 왔다. 그러나 국내에서는 지속적인 연구개발투자에도 불구하고 해외건설사업 수주와 연관성이 있는 사업 투자보다는 세계 최고기술 확보를 위하여 과제를 발굴하고 추진하여 왔다. 따라서 본 연구는 해외건설 경쟁력 강화를 위한 해외진출 국가에 적합한 기술개발을 추진하기 위하여 해외건설시장 동향과 수주 분석 그리고 국내외 해외건설 연구개발 동향을 분석하였다. 이를 기반으로 우리나라 기업의 해외진출 확대를 유도하기 위한 진출 국가별 연구개발 기술개발 방향과 연구개발과제를 도출하였다. 기술개발방향은 해외시장 맞춤형 시장확대 관련, 해외공사 수익성 강화 관련, 글로벌 신시장 개척 관련으로 크게 세 가지로 구분하였고, 이를 토대로 해외건설관련 전문가를 대상으로 수요조사를 통하여 38개 과제 도출과 도출된 과제에 대한 우선순위 평가를 통하여 세 가지 연구개발방향에 맞추어 10개 과제를 도출하였다.

• Advances in nano research
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• 제16권1호
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• pp.71-79
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• 2024

Nanotechnology is the latest technology developed by humanity, trying to use the molecular properties of materials found in nature to create devices that solve the problems plaguing humanity and their efficiency. Man is also trying to change the meaning of molecules to nano so that a body made up of these particles has all the properties of these particles. Nanotechnology is not a new field but a new approach in all areas. A new perspective in concrete technology has been created by the use of nanoparticles in recent years. Adding silica nanoparticles to concrete mixes improves its properties and increases its strength. However, different results and reported mechanisms explain the behavior of nanoparticles in the mixture; Therefore, it took much work to generalize the results and predict the behavior of nano concretes. This article is about the construction simulation technology of civil engineering based on artificial intelligence, which deals with the effect of nanoparticles on improving concrete properties. This was demonstrated by analyzing laboratory samples in various mixture configurations and observing how silica nanoparticles affected their microstructure with scanning electron microscopy (SEM). Based on SEM measurements, silica nanoparticles have a powerful effect because of their specific surface area. Their increase and decrease must be sought in interacting with the filling and nucleation mechanism and the pozzolanic activity. Each of these mechanisms dominates at different ages of hydration and affects the microstructure and mechanical properties of concrete.

• Architectural research
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• 제25권3호
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• pp.41-51
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• 2023

Building restoration is a complex process with a high level of uncertainty. Restoration professionals can significantly benefit from the well-established discipline of project management to achieve their targets; however, available evidence shows that the use of the project management body of knowledge in restoration projects is far from the desired level. Several historical organisations have since been established with the goal of preserving and governing cultural identity, and numerous studies have supported the need of preserving architectural heritage. Many owners, investors, academics, and developers believe that it would be considerably more expensive to renovate and restore an old building than to create a new one. Although the project management process is generally recognised, the concept of project management for architectural heritage projects differs due to the uniqueness of each project. It differs from many construction projects in terms of the need for research-based practices to define scope, planning, scheduling, supervision,decision-making,and also performance. The Greco-Roman Museum in Alexandria's planning, design, and building phases are being studied with the aim of identifying and analysing the variables that contribute to project delays. Three project management pillars were established as a result of gathering this data from the project's stakeholders: the first pillar addresses time management for the existing phase and how it will be incorporated into the new extension phase; the second pillar addresses performance in relation to project management issues in the delivery of the best quality of a construction project; and the third pillar addresses the scope of the new extension because it will significantly impact the other two pillars. This paper argues that a contemporary perspective which utilizes project management tools and techniques can contribute to the conservation of architectural heritage in line with the conservation principles.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.221-228
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• 2011

As construction works have become larger and more complex, improving productivity by introducing Information Technology (IT) is pursued and more effective construction management is needed in construction industry. In this circumstance, many different kinds of project management system is being introduced, and various IT technologies are applied such as Personal Digital Assistant (PDA), Bar Code, Radio Frequency Identification (RFID), Web Camera, and so on. However, these kinds of technologies might cause re-processing of information and ineffectiveness of project because of lack of real time information processing technology or separation between construction sites and management offices. Meanwhile, these technologies rather decrease the construction productivity except for the data saving and database function. Therefore, this research aims to develop Application that can be applied efficiently for construction material management, by understanding problems of former management system with questionnaires and extracting functions with analysis of requirements. In virtue of the construction material management Application which will be developed in this study, it will be possible to input information automatically, to process and check material information in real time, and to identify the location of necessary material. Then, the problem of separation between construction sites and management offices are solved, and as a result, more efficient management of materials in construction sites will become possible. At the same time, this study will investigate the possibility and applicability of new IT device, Smart Phone to construction sites.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2006년도 춘계학술발표회 논문집
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• pp.495-499
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• 2006

While the use of large scale underground complex space is increasing currently, this research suggests the methodology of servicing advanced service for civilian and constructing active disaster protection system in order to be free from danger problem of underground complex space by applying new ubiquitous technology. Synchronization between virtual space and real space and construction of ubiquitous disaster protection system arc the core technology. Based on RFID, USN technology, usually, user centered spatial information services are presented. it can be convert to disaster protection system on emergency situation without delay. Through these technology. we can ensure the safety of underground space where the floating population is concentrated in, moreover, utilize for infrastructure that presents various civilian services. Then we can satisfy the increasing civilians desire for safety and welfare and finally, it will contribute to construction of productive city and creation of new conceptual market.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.371-376
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• 2005

Administrative works of local governments in Japan always have been led by central government. Local government organizations have gotten used to control of central government, whose organization is divided vertically into divisions. Such organizations as lack of cooperation of each administrative division could not define strategic goal appropriate for their district independently and could not give an efficient and optimized solution to their strategic goal. Under existing management system, it will be difficult for local governments to rapidly adapt to changing society. Under these circumstances, it is necessary for local governments to structure new management system independent on central government's instructions in order to manage appropriately.