复杂环境下深基坑支护梁爆破拆除BLASTING DEMOLITION FOR A DEEP FOUNDATION PIT SUPPORT BEAM UNDER COMPLICATED ENVIRONMENT
张春丽,段卫东
ZHANG Chun-li,DUAN Wei-dong
摘要(Abstract):
武汉市融城国际深基坑周围环境复杂,为了安全、高效地拆除基坑支护梁,选用了控制爆破拆除方案。采用多打孔、少装药、延时起爆技术,通过分段切割、间隔装药、多层覆盖等措施,控制了爆破危害,取得了良好的爆破效果,可为类似工程提供经验和参考。
Surrounding environment of the deep foundation pit of Wuhan Rongcheng Guoji was complicated.In order to realize secure and efficient removal of the foundation pit support beam,the controlled blasting demolition scheme was chosen.Adopting the technology of drilling more,charge less,delay igniting,the blasting hazards were well controlled through the methods of section cutting,internal charge and multilayer cover,and good blasting effects were achieved.It could provide experience and reference for the similar projects.
关键词(KeyWords):
深基坑;爆破拆除;支护梁;安全防护;间隔装药
Deep foundation pit;Blasting demolition;Support beam;Safety protection;Interval charge
基金项目(Foundation):
作者(Author):
张春丽,段卫东
ZHANG Chun-li,DUAN Wei-dong
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- 深基坑
- 爆破拆除
- 支护梁
- 安全防护
- 间隔装药
Deep foundation pit - Blasting demolition
- Support beam
- Safety protection
- Interval charge