• Korean Journal of Construction Engineering and Management
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• v.4 no.1 s.13
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• pp.90-96
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• 2003

The purpose of this study is to present an improvement building construction process by using prefabricated materials. The current slab form work has waste factor by unnecessary process and not complete integration with the finishing process. Therefore the study used value stream analysis methodology for effective improvement of slab form work process. The main contents of the study are as follows; 1) Non-value adding activities were found at existing slab form work process by current state mapping(CSM) 2) Future state mapping(FSM) suggest process Integration to slab form work. 3) Slab form work is analyzed reduction time-cost by prefabricated material. The study recommends that, as a future research, development of tool and technique for the non-value adding activities are eliminated in building construction and application of prefabricated material should be increased.

• Korean Journal of Construction Engineering and Management
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• v.20 no.4
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• pp.46-55
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• 2019

The exposed concrete has been widely used in building construction. Therefore, many researches are presented to secure a proper construction quality of exposed concrete. Low quality and management absence, however, still remained in construction fields. Thus, many studies have been conducted to improve the quality, but defects still occur in the exposed concrete finishing work. In this study, the causes of defects were analyzed by process in order to prevent the generation of defects and to enhance the need for integrated management to secure quality. In addition, a case study and AHP analysis have derived the importance of defects occurring in the exposed concrete finishing work. The study concluded that the occurrence of the exposed concrete finishing work needs to be managed throughout the process, not the management limited by one process, according to the causes of the existing defects, and integrated management is required to prevent defects and improve quality of exposed concrete finishing work.

• Journal of the Korea Institute of Building Construction
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• v.21 no.6
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• pp.629-640
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• 2021

According to statistics from the Ministry of Land, Infrastructure and Transport in 2018, approximately 37% of residential buildings in Korea need to be reconstructed. Due to the rapid growth of the demolition industry, many side effects such as environmental destruction and safety accidents are becoming a problem in the demolition of existing buildings. This study proposes a decision-making process for selecting the most suitable dismantling method for field application by comprehensively considering safety, economic feasibility, and environmental characteristics. In particular, field applicability is evaluated by evaluating risk factors for the selected method. To this end, this study proposes the TOPSIS method for the selection of the dismantling method using the QFD development concept, and the FMEA method as a continuous development process of the selected method.

• JOURNAL OF ELECTRICAL WORLD
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• s.397
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• pp.52-53
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• 2010

지식경제부는 12월 15일 서울그랜드인터콘호텔 그랜드볼룸에서 올해 국내에서 개발된 세계최초 세계 최고 수준의 신기술 제품중에서 경제적으로 파급효과가 큰 대한민국 10대 신기술을 선정 발표했다. 10대 신기술 및 기술대상 선정은 전기 전자, 기계 항공, 재료 화학, 생명과학 환경자원 등 분야별 전문가로 구성된 기술대상 심의위원회에서 기술검토와 현장조사를 바탕으로, 기술의 우수성 국내산업에 미치는 파급효과 등을 기준으로 중소 대기업 등을 안배하여 선정하였다. 환경자원 분야에서 영예의 신기술로 선정된 '대우 통합 고효율 바이오가스 생산 및 활용 공법 : DBS 공법'<(주)대우건설>의 주역인 박현수 선임연구원의 인터뷰를 게재합니다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.06a
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• pp.551-553
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• 2013

노후 해양 플랜트 해체사장의 확대와 더불어 HLVs에 의존하고 있는 기존 해체 공법을 대체할 수 있는 새로운 통합관리 시스템의 개발이 요구되고 있다. IT 기술, ROV 운용기술, 구조물 건전성 모니터링 시스템 구축기술, 고성능 재료 개발 기술 등 국내에 확보되어 있는 기술들을 융합하여 노후 해양플랜트 해체작업을 종합적으로 관리, 진행할 수 있는 통합관리 시스템의 개발방향을 제시하였다.

• Water for future
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• v.39 no.10 s.159
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• pp.50-55
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• 2006

• Proceedings of the Korean Information Science Society Conference
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• 2007.10c
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• pp.159-162
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• 2007

상지대학교 #낙석 및 산사태 방재연구단#에서는 #건설교통부 지역기술혁신사업#의 일환으로 사계절 낙석과 산사태 위험에 노출되어 있는 강원지역의 주요 도로 사면에 대한 재해를 저감하기 위하여 통합 사면관리기술, 광역산사태 저감기술 및 사면 안정성중대기술을 개발하고 있다. 본 논문은 강원지역의 최근 5년간 시공된 주요 사면별 178종의 애트리뷰트들의 정보를 Database화하고 이를 활용하여 시공 예정인 특정 사면과 환경조건이 유사한 사면에 적용하였던 공법들과 이에 따른 유지보수 내역과 안정성 등의 정보를 제공하는 사면정보 검색시스템의 설계와 구현에 관한 것이다. 검색의 효율성을 위해 18종의 중요 애트리뷰트들을 선정하고, 이들을 선택형과 기재형으로 분류한 후, 공법들간의 유사도(일치도)를 측정하는 방안을 도입하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.7
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• pp.677-686
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• 2016

A thermal power plant is the first CFBC (Circulating Fluidized Bed Combustion) power plant consisting of 2 boilers-1 turbine. The optimal height of a stack needs to be approximately 156 meters in the case of this thermal power plant; however, the thermal power plant sites satisfy a function and reduce the construction cost by using mountains in the sites after cutting the ground and locating an integrated office and chimney at an altitude of 70 meters thereby lowering the height of the stack to 86 meters. In addition, the integrated office, which has a combined stack style with a unique design, is constructed by connecting with 2 stacks and disposing the office and an observatory in the space between them. Therefore, this study examined the design concept that fulfils the structural, functional, and aesthetic factors, harmoniously by joining the integrated office and the stack, which are disparate, and investigated special construction methods (Slip Form, Steel Inner Flue & Lift-up) through which heterogeneous architectures are structurally, functionally, and aesthetically constructed.

• Journal of the Korean Geosynthetics Society
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• v.19 no.4
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• pp.11-20
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• 2020

This study introduced the compact grouting method that can be used for improving soft ground and restoring buildings with unequal subsidence. The pump used in the traditional compact grouting method is a system that injects one hole each, which reduces the construction efficiency, and the analog injection method manually manages the construction by field workers, making it difficult to manage consistent quality. Pump and quality control system were developed to solve problems in existing construction. Since field supervisor determines amount of injected materials by using analog equipment and controls manually, it is difficult to manage consistent quality of construction. Therefore, the quality control system was developed in order to solve that problem. The quality control system consists of automatic mixing system of injection materials, multiple simultaneous injection pumps, and injection management monitoring system. Performance of the quality control system was verified through on-site testing, and ground improvement performance was verified through quality testing after testing and testing of the compact grouting method. Therefore, it is expected that the integrated quality control system developed will improve the quality assurance and efficiency and stability of construction at sites where construction and quality verification are difficult.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.565-568
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• 2003

Roadway construction planning processes involve a large amount of information on design, construction methods, quantities, unit costs, and production rates. GIS (Geographic Information System) is a strong tool for integration and managing various types of information such as spatial and non-spatial data required for roadway construction planning. This paper proposes a GIS-based system for improving roadway construction planning with its 'Spatial Analysis' and 'Visualization' functions. The proposed system cail help construction planner make a proper decision in a unique way by integrating design information and construction information within the system and creating design element modules for space scheduling purposes in real-time with its 'Interactive Planning' function.