정사각형 콘크리트 구조물의 파쇄도 향상을 위한 비폭성 파쇄제와 천공 홀의 효과적인 배치
(주)코리아스칼라
- 최초 등록일
- 2023.04.05
- 최종 저작일
- 2017.04
- 7페이지/ 어도비 PDF
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서지정보
ㆍ발행기관 : 한국전산구조공학회
ㆍ수록지정보 : 한국전산구조공학회 논문집 / 30권 / 2호
ㆍ저자명 : 조황기, 남윤민, 김경진, 이재하, 손동우
영어 초록
As an alternative to conventional explosive methods for demolition of concrete structures and rocks, the use of non-explosive demolition agents can be considered to reduce noise, vibration, and dust emissions during the demolition process. In this study, we conduct finite element analysis for crack initiation and propagation caused by the expansion of non-explosive demolition agents in square concrete structures. The predicted crack patterns are compared with the experimental results in the literature. The minimum values of the required expansion pressure of non-explosive demolition agents are also estimated, which depend upon the arrangement of non-explosive demolition agents and empty holes. Furthermore, we investigate the effect of empty holes on the fragmentation of concrete structures, and discuss the effective arrangement of non-explosive demolition agents and empty holes for fragmentation improvement.
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