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A Study of Cutting Method of H-Pile for Explosive Demolition of SRC Structure  

Min Hyung-Dong (㈜한화 화약기술팀)
Lee Yun-Jae (㈜한화 화약기술팀)
Song Young-Suk (㈜한화 화약기술팀)
Kim Hyo-Jin (대한주택공사)
Publication Information
Explosives and Blasting / v.23, no.3, 2005 , pp. 83-89 More about this Journal
Abstract
It follows in deterioration of the steel frame structure and becomes remodeling and removal. The construction work characteristic, economical efficiency and stability environment characteristic are planned and considered hereafter control plan of the steel frame structure which is deteriorated currently to cutting mettled plentifully sued on gas cutting of H beam. However it will not be able to apply from the explosives demolition which is makes a weak instantaneously and then collapses the building at the time. In this study, shape charge was used for cutting of the H-beam. That is the element testing to estimate explosives demolition for steel frame structure. As a result, it is found for single-side rutting method, both-sides rutting methods by H-beam thickness and pre-rutting process. It confirmed an affix method and an ease characteristic by fixing tool. Also, it is shown that air blasting decreased about 8dB(A) in order to reduce air blasting used by sand box. However, it will be required to reduce air blasting little more because explosives demolition will be done in urban site.
Keywords
explosives demolition; steel frame structure; H-beam; fixing tool; sand Box;
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  • Reference
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