30m高砖烟囱单向折叠爆破拆除DEMOLITION OF 30M-HIGH BRICK CHIMNEY BY UNIDIRECTIONAL FOLDING BLASTING
孙明旭,毕卫国,王超,高文乐,孙文进
SUN Ming-xu,BI Wei-guo,WANG Chao,GAO Wen-le,SUN Wen-jin
摘要(Abstract)：
介绍了复杂条件下的砖烟囱单向折叠爆破拆除。阐述了在倾倒空间不足情况下,为保证烟囱准确倾倒,确定了两段不同段高,单向折叠爆破的技术方案。同时介绍了爆破方案的选择和爆破切口的设计,通过两切口的起爆时差,减弱上下两节烟囱的相互影响,并结合爆破网路设计和有效的安全防护措施,较好地实现了爆破拆除。
Directional folded blasting demolition of brick chimney in complex conditionwas introduced.When thetoppling space was insufficient,to ensure the chimney could collapse accurately,the a unidirectional folding blasting scheme with two different segment heights was introduced.The design of blasting cut and the selection of blasting program were also introduced.The mutual impact of the upper and lower sections of the chimney were weakened through time difference between two blasting cuts,and combined with the blasting design and effective protection measures blasting demolition was realized.
关键词(KeyWords)：
砖烟囱;单向折叠;爆破切口;爆破拆除
Brick chimney;Unidirectional folding;Blasting cut;Demolition blasting
基金项目(Foundation):
作者(Author):
孙明旭,毕卫国,王超,高文乐,孙文进
SUN Ming-xu,BI Wei-guo,WANG Chao,GAO Wen-le,SUN Wen-jin
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