• 대한교통학회지
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• 제7권2호
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• pp.53-69
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• 1989

The management of subway business in large cities has recently become more difficult because of increased construction and operation costs. To cope with this situation, it is necessary to examine the methods of obtaining returns on development profits of land value rises that occur due to subway construction along subway lines, For this purpose, we examined the actual situation of rises in land values brought about by the construction of subway line #3 and line #4 in Seoul with application of three methods. In this research, we have calculated a basis of the development profits produced by the construction of subway line. According to the results, development profits produced by the subway construction differ depending on the method adopted. If, however, we accept line comparison analysis method, the total development profits amount to 557,3 billion won that is equivalent to 37 percent construction cost.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.886-891
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• 2005

The frequent maintenance required on some asphalt concrete (AC) pavement sections has made reconstruction with Portland Cement Concrete Pavement (PCCP) a feasible alternative. However, many constructability issues need to be addressed in order to realize the full potential of this alternative. Accelerated paving encompasses three classes of activities: methods to accelerate the rate of strength gain, methods to minimize the construction time, and traffic control strategies to minimize user delay. Three major AC intersections with severe rutting problems were reconstructed with PCCP. The entire reconstruction of each intersection, including demolition of the AC pavement and its replacement with PCCP, took place over a period of three days, starting on Thursday evening and opening the intersection to the traffic on Sunday afternoon. This paper discusses the use of PCCP for accelerated reconstruction of major urban intersections with minimal user and traffic disruption, using innovative construction techniques and traffic management optimization principles and demonstrates that concrete pavements can be constructed efficiently and quickly.

• 한국건설관리학회논문집
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• 제14권3호
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• pp.107-114
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• 2013

근래에 들어 한옥에 대한 인식의 변화와 더불어 한옥에 살고자 하는 선호도가 증가하는 등 한옥에 대한 관심이 급증을 하고 있는 가운데 정부에서는 한옥에 대한 제도를 개선하고 예산을 반영하는 등, 한옥관련 사업을 다각도로 추진하고 있다. 그러나 상대적으로 높은 공사비는 한옥의 대중화 및 지속적 발전에 장애요인중의 하나가 되고 있다. 이를 개선하고자 정부에서는 '한옥기술개발'의 R&D사업을 추진하고 있으며, 그에 따라 본 논문은 '한옥기술개발'의 일환으로 실제 지어진 전통한옥과 신한옥의 생산성을 토대로 효율적인 공사비 저감의 방향을 제시하고자 한다. 분석방법으로 한옥공사의 15개 대공종 중 주요공종을 선정하였다. 전통한옥과 신한옥 공사 중 주요공종에서의 생산성을 분석하여 재료와 공법의 변화가 생산성에 미치는 영향을 분석하였다. 그 결과, 분석한 주요공종 모두에서 생산성이 향상됨을 확인하였다. 또한 생산성의 향상이 공사비 저감에 어떠한 영향을 끼쳤는지 분석하였다. 주요공종 중 지붕/홈통의 공종은 주로 재료의 변화, 목공사와 마감공사는 공법의 변화, 기초공사와 창호는 재료와 공법 모두의 변화로 인하여 공사비 저감을 이루었다.

• 교육시설
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• 제11권6호
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• pp.33-42
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• 2004

The aims of this study are proposal for architectural design guidelines and reviewing the remodeling tendencies in the campus facilities. To achieve these purposes, the architectural remodeling characteristics of 23 campus facilities have been investigated, and the technical construction methods were also analyzed for each one of these facilities. The results from this study are as follows : (1) The requests from the changes of academic plan and the degradation and obsolescence are highly occupied the causes of architectural remodeling in campus facilities. (2) In technical construction methods, the horizontal and vertical additions are effective in campus facilities remodeling. (3) According to the recent campus remodeling tendencies, the campus facility remodeling plan and schedule should be included in campus facility master plan.

• 기술발표회
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• 통권2006호
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• pp.54-65
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• 2006

Since timbering of a cut in association with underground excavtion work is introduced to domestic, in spite of limitation of special quality in this method, time change, variety of construction, Strut Method is still considered with general methods. Experts have developed methods which is improved in limitation of special quality by continuous studies of normal strut method in basic, and it has been applied to construction site Consequently, this study introduced improved Strut Method to help experts when they select resonable methods with regard to construction site, conditions

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.642-648
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• 2009

Determining the total duration for a construction project is an integral part of project management in the construction industry. This is to ensure the project and all its associated activities can be carried out and completed within the time frame stipulated. There are several commonly used scheduling methods and techniques in project management, some of which involves manual calculation while others involve computer software. This paper looks into the various time determination methods, extracting out their differences and similarities. It also seeks to draw out the problems when determining time for projects, especially those encountered of case studies. Based on the results from the case studies, there were delays on certain projects even though time determination had been carried out rigorously prior to the commencement of the projects. This paper seeks to develop a time determination model, which incorporates risk management techniques into the calculations in order to improve the method for time estimation to minimize the chances of project delay.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2020년도 가을 학술논문 발표대회
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• pp.50-51
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• 2020

Recently, various maintenance materials and construction methods have been developed to secure the sustainable performance of structures. However, waterproofing of underground structures where groundwater infiltration is present is very difficult. In particular, the location of underground structures such as subways is very deep, and it is difficult to apply waterproof materials and construction methods in the case of structures accompanied by vibration. Therefore, we intend to study materials and methods for waterproofing leakage resistance in special environments such as underground structures.

• 대한건축학회논문집:구조계
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• 제35권12호
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• pp.173-180
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• 2019

Construction work is a labor-intensive industry, which is required systematic production activities using materials, manpower, and equipment. Among them, manpower resources play a very important role in achieving efficiently production in the organization. Construction work is highly dependent on construction craft workers, and the level of proficiency can be directly related to the construction productivity and quality. However, a rapidly aging construction craft workers in Korea, is being replaced by a foreign construction craft workers because of advoidance of new laborers in the construction site. In the future, if the continuous development and management of construction manpower is not made properly, it may be lead to adverse effects such as setbacks in production, delayed completion, faulty construction, industrial disasters, and decreased productivity in construction site. In this study, it was proposed four important factors for work capacity management of construction craft workers. These were ensuring of physical strength through the health management of construction craft workers, securing of proficiency through career management, ensuring of productivity through work capacity and establing of informatization through work capacity management. By introducing a systematic system, it is possible to improve construction craft workers' professionalism, enhancing the level of welfare, reflecting the realities of labor costs, increasing the quantitative and qualitative levels of construction craft workers, Futhermore it was demanded the continued interest and policy support for the realization of effective management of construction craft workers.

• 한국건축시공학회지
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• 제6권1호
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• pp.87-91
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• 2006

Since water leakage and cracks are not the source of serious problems such as long-term lowering of performance and durability of a stricture, including damages to operating facilities of a structure, damages to internal finishing materials, exhibition, and goods, and pollution of residential environment, they might have led to development of positive coping skills; however, an instant loss of lives or property due to earthquake, explosion, typhoon, or a fire was indeed neglected. In these days, repair materials for leakage cannot help but being taken in temporary way without any noticeable countermeasure. This kind of repair is socially criticized many times that is defective construction even if this costs a lot. It was not arrange the standard for construction methods of sealer of injection type for leakage maintenance, even it has been used various type of construction methods for leakage part. In conclusion, we suggest that the construction methods of sealer of injection type for leakage maintenance for leakage to establish the leakage repairing technology as increase of structure demand. Therefore, it would be possible to provide a stage-by-stage solution by developing systematic research activities among the industry, schools, and research institutes to spread maintenance management techniques globally through technical solution to water leakage and cracks, acquisition of structural safety with prolonged durability for life cycle, reduction of water leakage repair expense s, and so on.

• 한국지반공학회지:지반
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• 제23권9호
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• pp.10-20
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• 2007