摘要
介绍了采用控制爆破技术拆除一栋3单元17层剪力墙结构楼房的成功实例。由于环境限制,必须控制爆堆范围,采取原地坍塌与定向倒塌相结合的爆破方案;为了确保结构充分解体和减小爆堆高度,采取了层层装药的装药设计;为减小爆破危害采取孔内秒延时和孔外毫秒延时相结合的技术,将单响起爆药量降到最低。爆破后证明采用以上技术取得了非常理想的爆破效果。
The paper introduced a forced conrete shear wall structure by be controlled, which suggested a blast employed. In order to ensure the vert practical example of successful demolition of a 17-storey building in reincontrolled blasting.Because of restricted surroundings, the muckpile must ng program combining controlled blasting with collapsing in situ should be cal collapse, complete disintegration and a minimized muckpile area, some technological measures such as preliminary demolition, drilling and charging in each floor were taken, and for diminishing blasting damage, down-hole second blasting and out-hole millisecond blasting were used to reduce charge quantity in single shot. The blasting reached very ideal result and verified the technologies designed in this project.
出处
《工程爆破》
2006年第3期53-55,86,共4页
Engineering Blasting
关键词
爆破拆除
剪力墙结构
控制爆破
Blasting demolition
Reinforced concrete shear wall
Controlled blasting
