周听清,沈兆武,孙宇新,秦友花
ZHOU Ting qing, SHEN Zhao wu, SUN Yu xin, QIN You hua (University of Science and Technology of China, Hefei, Anhui 230026, China)

• 1:中国科技大学!合肥230026
• 2:中国科技大学!合肥230026
• 3:中国科技大学!合肥230026
• 4:中国科技大学!合肥230026

摘要(Abstract)：

介绍了一座 6 0 4m的超长大桥的控制爆破拆除。确定爆破方案时 ,采用了先破坏T形梁、再爆破桥墩、最后用外敷药包进行二次破碎的新设计思想。可检测的非电起爆系统的应用 ,使大桥的爆破拆除安全、可靠、快速、经济 ,为类似工程提供了可选择的新技术。
In this paper, demolition of an ultralong bridge with a length of 604m by controlled blasting was introduced. A new design thought of that T shape beams were destroyed firstly, abutments blasted secondly and secondary crushing with unconfined charges was finally carried out was adopted during determination of blasting scheme. The application of a detectable non electric initiation system makes the blasting demolition of the bridge safe, reliable, quick and economic, providing a new alternative technology for other similar projects.

关键词(KeyWords)： 桥的拆除;控制爆破;非电导爆管
Demolition of bridge; Controlled blasting; NONEL Detonator

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 周听清,沈兆武,孙宇新,秦友花
ZHOU Ting qing, SHEN Zhao wu, SUN Yu xin, QIN You hua (University of Science and Technology of China, Hefei, Anhui 230026, China)

参考文献(References)：

• 1〕冯叔瑜 ,等 工程爆破 [M ] 北京 :中国铁道出版社 ,1980
• 〔2〕沈兆武 ,等 可检测的非电导爆管系统 [P],专利号 92 10 2 585 8,合肥 ,1992