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Structural Analysis of the Pre-weakening of a Cylindrical Concrete Silo for the Application of Overturning Explosive Demolition Method  

Choi, Hoon (홍익대학교)
Kim, Hyo-Jin (한국토지주택공사 주택도시연구원)
Park, Hoon (전북대학교)
Yoon, Soon-Jong (홍익대학교 토목공학과)
Publication Information
Explosives and Blasting / v.27, no.2, 2009 , pp. 12-18 More about this Journal
Abstract
Recently, several cases of destruction of old cylindrical silos by explosive demolition method have been reported. This study deals with the subject concerning the pre-weakening of a cylindrical concrete silo for the application of overturning explosive demolition method. In the past, the pre-weakening operation of structure in explosive demolition has been done by use of some empirical methods. These empirical approaches, however, have possibilities of unexpected accidents. In order to provide a guideline for the pre-weakening of cylindrical silos and similar structures, this paper shows the result of a case study, in which the instability of a silo due to pre-weakening is investigated by a numerical structural analysis before actually conducting pre-weakening and demolition operations.
Keywords
Pre-weakening; Cylindrical concrete silo; Explosive demolition; Overturning method; Structural safety;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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