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민지홍(Min JiHong),서종원(Seo Jong-Won),장형식(Jang Hyeong-Sik),박준원(Park Joon-Won) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.5
It has been applied using cranes or insertion methods to install heavy structures to strengthen existing railway bridges. These methods are uneconomical because of two reasons. The first one is it is required to construct approach roads for heavy equipment and/or working yard. The second one is the electric lines shall be cutoff during construction. Both require additional construction cost and duration. In this study, new transport equipment was developed which can be applied to heavy structures up to 100 ton. Using this method, the heavy structure can be loaded into the new transport equipment at working yard and transported to the working site. This method can be applied, but not limited to railway bridge or roadbed rehabilitation. It was found that the precious construction can be achieved to install heavy structure using this method. The experimental construction to make non-ballast girder bridge composite with new pc deck slab using this method was carried out for Jewon bridge. The example bridge is in extreme condition because it locates above national road #38 within extreme transition curve and has 10 ‰ slope and skew. The experimental construction results were satisfactory both for safety and construction precision.
안광열(An Kwang Yeol),임종권(Lim Jong Kwon),장형식(Jang Hyeong Sik) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
The railroad construction is connected with a variety of engineering fields such as civil engineering, architecture engineering, electrical engineering, physics, machine engineering, and so on. Relatively longterm construction and periodical maintenance are necessary for the project. Civil appeal problems including environmental issue are occurred frequently. Value Engineering(VE) process especially in planning and design phase is essential in order to solve this problem. This paper is intended to propose a systematic design VE process of the railroad construction project. Standard VE manual developed by Korea Rail Network Authority is developed. This paper includes reviews of existing VE processes in order to provide an effective design VE process of the project. It is concluded that the suggested model for VE process may be useful for establishment of VE program of organizations.