• Title/Summary/Keyword: 건축공법

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A Case Study of Blast Demolition at Chung-Ang Department Store in Daejeon City (대전 중앙데파트 발파해체 사례)

  • Min, Hyung-Dong;Park, Jong-Ho;Song, Young-Suk;Park, Hoon
    • Explosives and Blasting
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    • v.27 no.1
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    • pp.62-78
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    • 2009
  • Recently, construction techniques have been rapidly developed with reconstruction of old buildings, urban regeneration and efforts of restoring natural ecology, so demolition of deteriorated buildings has been rapidly increasing. Demolition work of building should be executed without damaging surrounding environments according to relevant regulations. There are various demolition methods and among them, explosives demolition is the most practical way for expenses and safety of work. As a part of Daejeon stream ecological restoration project, this thesis is a case of executing demolition of Chung-Ang Department Store which was built 35 years ago as covered structure on the upper part of Daejeon stream with explosives demolition. This structure is 8 stories high, total height of 41.6 m including basement floor, $1,650m^2$ for building area and $18,351m^2$ for total floor area. It is located in the center of Daejeon city where shopping centers and buildings are crowded and main facilities are Daejeon subway (18m), backside shopping center (20m), underground shopping center(15m), Mokchuk bridge, Eunjung bridge(0.25m) and fiber-optic cable(0.25m). In this project, implosion was selected for explosives demolition methods by considering this area being a busy urban area, and this project was executed after examining collapse movement of structure in advance using simulation program not to damage main facilities. Total 80kg of explosives and 1,000 detonators were being used. This project will be a good case of executing explosives demolition successfully by applying implosion on urban area in the country.

Development of Finishing Panel using Surface Treatment Method (표면처리공법을 활용한 마감 패널 개발)

  • Kim, Kang-Min;Yoon, Seob;Kwan, Hae-Won;Gong, Min-Ho
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2019.05a
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    • pp.57-58
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    • 2019
  • Precast concrete finishing panels can be implemented in different colors, textures and designs relatively freely by different designers in different finishing materials. Therefore, we tried to develop a PC finishing panel that can be applied in the field by using various color pigment and concrete surface retardation method and polishing method.

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