唐友祥,唐建明
TANG You xiang;TANG Jian ming (Suizhou Blasting Company;

• 1:随州市爆破公司
• 2:随州市爆破公司 湖北随州　441300
• 3:湖北随州　441300

摘要(Abstract)：

用定向爆破拆除62m高砖结构厚壁烟囱时,利用烟囱上恰好位于爆破切口两侧的自然裂缝代替定向窗。由于烟道口早已封堵,无法入内进行内衬的预处理。为此,在爆破切口时通过适当增大药量,把内衬和烟囱壁作为一个整体予以爆破。此外,还介绍了爆破参数的确定、爆破震动和触地震动的校核以及安全防护措施。
Using natural cracks just situated in two ends of the blasti ng cut as substitutes of direction al windows,a thick wall brick chim ney with a height of 62 meters was demolished by directional blasting Because the flue opening was seal ed up for a long time,pretreatment of chimney liner through entering the chimney was impossible For thi s reason,chimney wall and the line r were integrally blasted through reasonably increasing charge mass when the blasting cut was made In addition,determination of blasting parameters,checks of blasting vibr ation and touchdown vibration and safety precautions were introduced

关键词(KeyWords)： 砖结构烟囱;拆毁;定向爆破;安全防护措施
Brick structural chimney ; Demolition; Directional blasting; S afety precautions

Abstract:

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基金项目(Foundation):

作者(Authors): 唐友祥,唐建明
TANG You xiang;TANG Jian ming (Suizhou Blasting Company;

参考文献(References)：

• 〔1〕冯叔瑜,吕　毅,杨杰昌,顾毅成.城市控制爆破(第二版)[M] 北京:中国铁道出版社,1996
• 〔2〕龙维祺 特种爆破技术[M] 北京:冶金工业出版社,1993
• 〔3〕李守巨 拆除爆破中的安全防护技术[J] 工程爆破,1995,1(1):71-75