张万生,王彦荣
ZHANG Wan sheng,WANG Yan rong (Hongxiang Civil Blasting Co ,Jiuquan Iron & Steel Group,Jiayuguan City,Gansu 735100,China)

• 1:酒钢集团宏祥民用爆破公司
• 2:酒钢集团宏祥民用爆破公司 甘肃嘉峪关735100
• 3:甘肃嘉峪关735100

摘要(Abstract)：

析了定向控制爆破中部分建筑物后部塌落破碎不良和产生后坐的原因 ,对于中央为楼道、两侧房间对称分布的非框架结构建筑物 ,采用“双支点”定向控制爆破技术可以有效地解决后部一、二楼塌落破碎不良的问题 ,改善爆堆堆积效果 ;同时可基本避免楼房爆破时的后坐。文中简单介绍了几个工程实例 ,在这些实例中 ,采用这种技术拆除宿舍楼取得了良好效果。
In this paper,the causes for the recoil and poor disintegration of the rear of partial buildings are analyzed in directional controlled blasting For the non frame buildings with central passageway and symmetrically distributed rooms,use of the directional controlled blasting with two pivots can effectively solve the problem of poor disintegration of the rear,thus improving the pile up result At the same time,it can basically avoid the recoil of the building to be blasted Several practical engineering examples are introduced In these examples,this technology is used for blasting demolition of apartment buildings and the good blasting results are gotten

关键词(KeyWords)： 非框架结构;定向倾倒;拆除爆破;控制爆破;后坐
Non frame structure; Directional collapsing; Demolition blasting; Controlled blasting; Recoil

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 张万生,王彦荣
ZHANG Wan sheng,WANG Yan rong (Hongxiang Civil Blasting Co ,Jiuquan Iron & Steel Group,Jiayuguan City,Gansu 735100,China)

参考文献(References)：

• 〔1〕刘殿中工程爆破实用手册[M ]北京:冶金工业出版社,1999
• 〔2〕吕向东,李岁学四层砖混结构住宅楼的控制爆破拆除[J]工程爆破,2000,6(2):59-62
• 〔3〕张国建实用爆破技术[M ]北京:冶金工业出版社,1997