特殊结构砖混烟囱爆破拆除  

Explosive Demolition of Special Brick-Frame Structure Chimney

作　　者：张亚文 曹跃[2] 赵明生[2] 梁开水[2] 

机构地区：[1]中国建筑材料工业建设西安工程有限公司,西安710000 [2]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《爆破》2011年第3期77-79,共3页Blasting

摘　　要：介绍了1座高55 m,烟囱地坪处外径为4.1 m,内径为1.1 m,地坪以上3 m处外直径为4 m,内径为3 m的砖混烟囱的定向控制爆破拆除。根据烟囱本身的结构特点将烟囱爆破切口底部提高到地坪以上+3.0 m处,采用内部钻孔的方法进行爆破施工,取得了较好的爆破效果。The directional explosive demolition of a chimney with 55 m high and the external diameter of chimney floor 4.1 m with internal diameter 1.1 m is introduced ,which the external diameter above the floor 4 m is 3 m and the internal diameter is 3 m. According to structural characteristics of the chimney, the blast cut is raised ＋ 3.0 m above the chimney floor,and the blastholes were drilled from inner,then the blast result is better.

关 键 词：定向倾倒 控制爆破 砖混烟囱 内部钻孔 

分 类 号：TU746.5[建筑科学—建筑技术科学]