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A Case Study of Blast Demolition at Chung-Ang Department Store in Daejeon City  

Min, Hyung-Dong ((주)한화 발파기술팀)
Park, Jong-Ho ((주)한화 발파기술팀)
Song, Young-Suk ((주)한화 발파기술팀)
Park, Hoon ((주)코리아카코)
Publication Information
Explosives and Blasting / v.27, no.1, 2009 , pp. 62-78 More about this Journal
Abstract
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.
Keywords
Covered structure; Blast demolition; Chung-Ang Department Store; Implosion;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Hao, W., 2007, Controlled Blasting Demolition of a High Building with Super-thin Wall Structure by Multi-direction Collapsing, APS Balsting, pp.273-277
2 ASI, 2006, Extream Loading for Structures Technical Manual, Applied Science International, USA, pp.20-35
3 박훈, 석철기, 김승곤, 2008, 원통형 구조물의 발파해체 를 위한 사전취약화에 따른 구조물의 안정에 관한 수치해석 연구, 화약발파(대한화약발파공학회지), Vol. 26, No. 1, pp.1-6.   과학기술학회마을   PUBMED