• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2008년도 정기학술발표대회 논문집
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• pp.638-641
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• 2008

Design is an iterative, generative, and multidisciplinary process by its nature. Iteration is frequent in most of the engineering design and development projects including construction. Design iterations cause rework, and extra efforts are required to get the optimal sequence and to manage the projects. Contrary to simple design, isolation of the generative iterations in complex design systems is very difficult, but reduction in overall iterations is possible. Design depends upon the information flow within domain and also among various design disciplines and organizations. Therefore, it is suggested that managers should be aware about the crucial iterations causing rework and optimal sequence as well. In this way, managers can handle design parameters related to such iterations proactively. Numbers of techniques are available to reduce iterations for various kinds of engineering designs. In this paper, parameter based Design Structure Matrix (DSM) is chosen. To create this DSM, a survey was performed and then partitioned using a model. This paper provides an easy approach to those companies involved in or intend to be involved in "design and build projects."

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2003년도 학술대회지
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• pp.274-277
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• 2003

제약이론은 특정한 관리기술을 개발하는데 사용되는 접근방법이며, 철학이다. 운영관리상에 적용되었던 소설 "The Goal"에 의해서 처음으로 널리 보급되었다. 1997이후로 프로젝트관리의 두 가지 영역에서 적용되어 왔으며. 그 천 번째 적용은 단일프로젝트에 대한 공기단축과 프로젝트 통제관리의 간소화를 위한 공정관리분야이며, 두 번째 적용은 동시에 수행되는 여러 프로젝트에 의해서 공유되는 자원의 효과적 관리이다. 이 논문은 프로젝트 관리에 적용된 제약이론인 애호사슬(Critical chain)의 원리에 대해서 연구하고, 국내의 건설프로젝트에 적용하는 것을 목적으로 한다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 세계 도시지반공학 심포지엄
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• pp.27-50
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• 2009

This paper describes an adaptive management approach for predicting, monitoring, and controlling ground movements associated with excavations in urban areas. Successful use of monitoring data to update performance predictions of supported excavations depends equally on reasonable numerical simulations of performance, the type of monitoring data used as observations, and the optimization techniques used to minimize the difference between predictions and observed performance. This paper summarizes each of these factors and emphasizes their inter-dependence. Numerical considerations are described, including the initial stress and boundary conditions, the importance of reasonable representation of the construction process, and factors affecting the selection of the constitutive model. Monitoring data that can be used in conjunction with current numerical capabilities are discussed, including laser scanning and webcams for developing an accurate record of construction activities, and automated and remote instrumentations to measure movements. Self-updating numerical models that have been successfully used to compute anticipated ground movements, update predictions of field observations and to learn from field observations are summarized. Applications of these techniques from case studies are presented to illustrate the capabilities of this approach.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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• pp.61-62
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• 2019

With development of IT technology, the ubiquitous has been realized in various industry. In construction industry, as well, end-edge techniques have been introduced such as managing technique the temperature and compressive strength of the concrete placed in structure in domestic and abroad project sites. However, several problems were found during application at the actual field regarding difficulties of connecting Bluetooth communication due to the short communication range, diffuse reflection caused by aluminum formwork, and high cost by using one-time sensor. Therefore to recover these shortages, and improve the performances, the wireless sensor network based concrete IoT management system for concrete early-age quality management was developed.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2001년도 학술대회지
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• pp.175-183
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• 2001

오늘날 국내 기업들의 관심은 업종을 가리지 않고 정보기술(IT)로 집중하여 고객관계관리(CRM), SCM, ERP등과 같은 다양한 기법들을 도입하지 않으면 경쟁에서 도태될 것 같은 분위기로 전환되고 있으며, 이러한 사항은 건설산업에서도 나타나고 있다. 그러나 국내 건설기업들의 홈페이지에는 단순히 자사의 홍보나 시스템 활용부문에 한정된 구성을 취하고 있으며, 고객들의 참여유도 역시 낮은 수준을 유지하고 있는 실정으로 조사되었다. 이에 본 연구는 타 산업의 구축사례와 건설관련자들의 설문조사를 분석하여 고객관계관리(CRM) 개념을 기반으로 한 건설기업들의 웹사이트 활성화를 위한 기초자료를 제시한다.

• 한국산학기술학회논문지
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• 제22권1호
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• pp.188-196
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• 2021

우리나라는 국가하천 관련 사업들에 많은 투자를 하고 있으나 하천사업이 완료된 후 사업의 실효성을 평가할 수 있는 평가기법이나 하천사업을 관리할 수 있는 시스템은 부재한 실정이다. 평가기법과 시스템의 부재로 하천공사구간 정보, 사업효과 분석, 사업 간 벤치마킹 등의 불가로 이어진다. 이는 동일 구간 유사사업 수행으로 인한 예산의 과잉, 중복투자 문제를 야기할 수 있으며 잘못된 사업요소가 반복적으로 활용될 수 있다. 이러한 평가기법 및 시스템의 부재를 해결하고자 본 연구에서는 하천사업 평가기법 개발 및 하천사업(공사)관리시스템 개발을 진행하였다. 평가기법의 개발은 사업 간의 비교·분석을 가능하게 하며, 유지관리 계획 수립 시 활용될 수 있다. 또한 시스템을 통해 공사정보 조회 및 공사구간의 시각화, 성과품 관리 등을 제공할 수 있다. 본 연구에서는 선행연구를 통해 개발한 하천사업 평가기법을 수정·보완하였으며, 낙동강수계 국가하천인 A하천 ◯◯지구, B하천 △△지구 하천환경정비사업에 적용을 통해 실효성을 검증하였다. 또한 하천사업(공사)의 공정관리, 예산관리 등을 위한 시스템 구성(안)을 제시하였다. 본 연구에서 제시한 평가기법 및 시스템 활용방안을 통해 하천사업의 업무효율성 증대와 하천사업의 효율성을 제고할 수 있을 것으로 기대한다.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.493-498
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• 2009

Recently, the number of complex construction projects, such as high-density development and long-span mega structure construction, has been increasing globally. Therefore, the construction duration has become an even more important factor for success. Nevertheless, in domestic residential construction projects, it usually takes more time than twice as much as North American cases. The long construction duration causes a number of problems, for example growth of financial costs, fall in productivity, and weakness of competitiveness. If the framework construction duration can be shortened to 3 ~ 4 days, then it is also expected to complete the finish work of building in shorter duration, be led to reduce the entire construction duration, and eventually to save a great deal of indirect costs. For shortening the construction duration, previous researches pointed out that the development of simplified plan design should precedes. But, in reality, lack of experience of new design and innovative techniques tends to be the obstacle to wide adoption of the simplified plan design in construction fields. In this paper, a simplified structural plan design is proposed, and the construction cost is quantitatively compared between when traditional construction technique is applied to the traditional plan and when the duration-shortening key technique is applied to the developed plan.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.536-542
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• 2022

Cost overruns, schedule delays, and a shortage of skilled labor are common problems the construction industry is currently experiencing. Modularization and standardization strategies have the potential to resolve the various problems mentioned above and have been applied for various construction applications for a long time. However, the level of modularization remains low, and modular construction projects have not been getting the full benefits. Thus, this review investigated the cutting-edge technologies currently being utilized to develop the modular construction field. For this paper, qualified research papers were identified using predetermined keywords from previous related research papers. Identified literature was then filtered and analyzed. According to the included reviews, several technologies are being developed for modular construction. For example, automated design and monitoring systems for modularization were developed. In addition, research labs are utilizing robotic arms for modular construction to achieve a high level of completion in the construction industry, as is seen in the manufacturing industry. Despite these efforts, more research and development are necessary because some automation technologies still require manual activities. Thus, there is great potential for further development of modularization techniques, and further research is recommended to achieve high levels of modularization.

• 한국건설관리학회논문집
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• 제4권3호
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• pp.95-101
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• 2003

제약이론은 특정한 관리기술을 개발하는데 사용되는 접근방법이며, 철학이다. 운영관리상에 적용되었던 소설 "The Goal"에 의해서 처음으로 널리 보급되었다. 1997이후로 프로젝트관리의 두 가지 영역에서 적용되어 왔으며, 그 첫 번째 적용은 단일프로젝트에 대한 공기단축과 프로젝트 통제관리의 간소화를 위한 공정관리분야이며, 두 번째 적용은 동시에 수행되는 여러 프로젝트에 의해서 공유되는 자원의 효과적 관리이다. 이 논문은 프로젝트 관리에 적용된 제약이론인 애로사슬(Critical chain)의 원리에 대해서 연구하고, 국내의 건설프로젝트에 적용하는 것을 목적으로 한다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 추계 학술논문 발표대회
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• pp.71-72
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• 2011

The construction industry in Korea has seen significant improvements in quality management techniques, driven by the dramatic development of new technology through enlargements, but compared with technical development, the level of building quality improvement is still lagging behind. Therefore, in this study, a work process and system improvement plan for payment regulations is proposed, with which contractors can secure quality voluntarily in the building construction project.