王永强,张久龙,王朝晖,关喜志
WANG Yong-qiang,ZHANG Jiu-long,WANG Zhao-hui,GUAN Xi-zhi (65307 Troops,PLA., Jilin 132002,China)

• 1:中国人民解放军六五三○七部队
• 2:中国人民解放军六五三○七部队
• 3:中国人民解放军六五三○七部队
• 4:中国人民解放军六五三○七部队 吉林132002

摘要(Abstract)：

用控制爆破方法拆除一座长125·85m、宽11·37m的石拱桥。在爆破拆除时主要破坏其承重的桥墩、拱圈与桥墩的结合点,对各种部位的炮孔布置及装药量、单段爆破药量进行了计算和试爆,并采用分段延时起爆方法,取得了很好的爆破效果。
The paper discussed a method of controlled blasting employed in demolition of a stone arch bridge with its length and width being 125.85m and 11.37m respectively.The key point for the blasting was to destroy its pier and the joint between the pier and arch.Allocation of the boreholes at different location plus its charge loading,and charge quantity in single blasting were calculated out.The blasting was tested in the way of partition delay detonation.Positive blasting effect was achieved.

关键词(KeyWords)： 控制爆破;拆除;石拱桥
Controlled blasting; Demolition; Stone arch bridge

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 王永强,张久龙,王朝晖,关喜志
WANG Yong-qiang,ZHANG Jiu-long,WANG Zhao-hui,GUAN Xi-zhi (65307 Troops,PLA., Jilin 132002,China)

参考文献(References)：

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• 〔2〕中国人民解放军工程兵司令部.控制爆破[R].1982.
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• 〔4〕刘殿中.工程爆破实用手册[M].北京:冶金工业出版社,1999.