潘常洪,鹿智勇
PAN Chang-hong,LU Zhi-yong (Construction Company,Anshan Steel Corporation Group,Anshan,Liaoning 114021,China)

• 1:鞍钢修建公司
• 2:鞍钢修建公司 辽宁鞍山114021
• 3:辽宁鞍山114021

摘要(Abstract)：

介绍了一座高 12 0m、底部直径 9 2m、壁厚 5 0 0mm的钢筋混凝土烟囱的定向控制爆破拆除。文中讨论了爆破切口的选取、爆破参数和装药量的确定。在定向窗和导向窗的设计中 ,把清灰口作为导向窗的一部分 ,在以倾倒中心线为对称轴的相应位置上开凿另一部分导向窗。此外 ,还简述了预处理、起爆网路和安全技术措施等。
Demolition of a reinforced concrete chimney with 120-meter height,bottom diameter of 9.2 meters and wall thickness of 500 millimeters by directional blasting was introduced.The selection of blasting cut,the determination of blasting parameters and charge weight were discussed.In the design of directional and direction-guide windows,an opening for cleaning of flue dust was used as one of direction-guide windows and another direction-guide window was cut in the position symmetrical about collapsing centre line.In addition,pretreatment,priming circuit,safety precautions and so on were outlined.

关键词(KeyWords)： 烟囱;钢筋混凝土结构;爆破拆除;定向爆破
Chimney; Reinforced concrete structure; Blasting demolition; Directional blasting

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 潘常洪,鹿智勇
PAN Chang-hong,LU Zhi-yong (Construction Company,Anshan Steel Corporation Group,Anshan,Liaoning 114021,China)

参考文献(References)：

• 〔1〕赵福兴控制爆破工程学[M]西安:西安交通大学出版社,1988
• 〔2〕陈华腾,等爆破计算手册[M]沈阳:辽宁科学技术出版社,1991
• 〔3〕张立国钢筋混凝土烟囱的爆破拆除[J]爆破1998,15(1):27-29
• 〔4〕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