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A Case of Shell Structure Demolition Using Explosives  

Song, Young-Suk ((주)한화 개발사업팀)
Jeong, Min-Su ((주)한화 개발사업팀)
Publication Information
Explosives and Blasting / v.29, no.2, 2011 , pp. 67-80 More about this Journal
Abstract
Recently, the number of structure demolitions has increased in both civil and architecture fields due to various reasons such as redevelopment of a city, utilization of sites and restoration of deteriorated structures. In the past, domestic shell structures had been constructed with brick masonry and they were not high. Therefore, their demolition had been executed with ease. Recently, however, taller reinforced concrete shell structures have become a target for the destruction. Under these circumstances, how to efficiently demolish a structure and how to minimize effects of the destruction on environment including vibration and noise have become a main issue. One of the possible solutions is the explosive demolition. In this study, a case of explosives demolition of the stack, which is located in Jeju Thermal Power Plant in Republic of Korea and is 70 m tall, is addressed. In order to fall down the structure against the desired direction, 13.5 kg dynamite and 100 electric detonators were used.
Keywords
Demolition; Shell structure; Explosives demolition;
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