工程爆破

2000, (03) 26-29

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水中深孔爆破拆除南昌老八一大桥桥墩
DEMOLITION OF BIG BRIDGE PIERS IN WATER BY LONG-HOLE BLASTING

谭雪刚,谢兴博,王为,薛峰松
TAN Xue gang, XIE Xing bo, WANG Wei, XUE Feng song (Engineering Institute, Engineering Corps, University of Technology, PLA., Nanjing 210007, China)

摘要(Abstract):

通过深孔和浅孔爆破相结合的方法 ,拆除了南昌老八一大桥 30个水中大型钢筋混凝土桥墩。本文介绍了桥墩的结构、爆破方案的确定、炸药单耗的选取、水下深孔药量的计算、炮孔布置、装药结构、起爆方法、爆破震动监测和所采取的其他技术措施
By a blasting method of combining long holes with short holes, 30 big reinforced concrete bridge piers of the old‘8.1’bridge in Nanchang were demolished. In this paper, structure of the bridge pier, determination of blasting scheme, selection of the powder factor, charge calculation of long holes in water, blasthole pattern, charging structure, priming method, blasting vibration monitoring and the adopted technological measures were introduced.

关键词(KeyWords): 桥墩;拆除爆破;深孔爆破
Bridge pier; Demolition blasting; Long hole blasting

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 谭雪刚,谢兴博,王为,薛峰松
TAN Xue gang, XIE Xing bo, WANG Wei, XUE Feng song (Engineering Institute, Engineering Corps, University of Technology, PLA., Nanjing 210007, China)

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