工程爆破

2001, (01) 40-42

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超长大桥控制爆破拆除
DEMOLITION OF AN ULTRALONG BRIDGE BY CONTROLLED BLASTING

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)

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

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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)

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