罗俊;程贵海;谢承煜;蒙少明;
LUO Jun~1,CHENG Gui-hai~1,XIE Cheng-yu~2,MENG Shao-ming~1 (1.College of Resource and Metallurgy,Guangxi University,Nanning 530004,China; 2.School of Resource and Safety Engineering,Central South University,Changsha 410083,China)

• 1:广西大学资源与冶金学院
• 2:中南大学资源与安全工程学院

摘要(Abstract)：

介绍了南宁市南湖名都广场支护基坑的钢筋混凝土结构爆破拆除,针对其爆破环境复杂的特点,通过多次现场爆破试验优化了炸药单耗,采用了孔内半秒延时、孔外毫秒延时的逐孔起爆技术,设计了合理的起爆顺序,使施工进度明显加快,爆破质量及经济效益也获得非常理想的效果,可为同类工程提供参考。
The demolition blasting of the reinforced concrete structure supporting foundation pit was introduced at Nanhu Mingdu Square,Nanning.According to its complex blasting environment,unit consumption of explosives was optimized by several blasting tests on site.The hole-by- hole detonation technology of half a second delay in-hole and millisecond delay out-hole was used and the reasonable initiation sequence was designed,which speeded up the construction progress obviously.The blasting quality and economic benefits were also satisfactory.The project can provide a reference for similar projects.

关键词(KeyWords)： 基坑支护结构;爆破振动;延时爆破;逐孔起爆技术
Support structure of foundation pit;Blasting vibration;Delay blasting;Hole-by-hole detonation technology

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 罗俊;程贵海;谢承煜;蒙少明;
LUO Jun~1,CHENG Gui-hai~1,XIE Cheng-yu~2,MENG Shao-ming~1 (1.College of Resource and Metallurgy,Guangxi University,Nanning 530004,China; 2.School of Resource and Safety Engineering,Central South University,Changsha 410083,China)

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