李建彬;李建设;李源泉;田爱军;
LI Jian-bin,LI Jian-she,LI Yuan-quan,TIAN Ai-jun (Beijing General Research Institute of Mining and Metallurgy,Beijing 100044,China)

• 1:北京矿冶研究总院
• 2:北京矿冶研究总院
• 3:北京矿冶研究总院
• 4:北京矿冶研究总院 北京100044

摘要(Abstract)：

介绍了中深孔爆破在奥运场馆石方开挖中的应用。在复杂环境下,采用孔外多段毫秒延时、低单耗、加长填塞等技术措施,很好地控制了爆破振动及飞石的危害。在不良地质条件下采用预裂爆破技术,优化预裂爆破参数,保证了边坡的平整。此实施经验可为同类条件下的爆破提供参考。
The application of the technique of the excavation by longhole blasting in construction of Olympic Games stadium was introduced in this paper.The blasting was conducted in complicated surroundings and reached good effect in terms of controlling the danger of blasting vibration and fly rock by the employed techniques like out-hole millisecond delay blasting,charge underloading and stemming lengthening.Regarding the complicated geological condition the adoption of presplitting blasting with optimized blasting parameters guaranteed the side slope integrity.The paper summarized and provided some experiences of the construction.

关键词(KeyWords)： 石方开挖;深孔爆破;预裂爆破;破碎岩层
Rock excavation;Long-hole blasting;Presplitting blasting;Breakage rock

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 李建彬;李建设;李源泉;田爱军;
LI Jian-bin,LI Jian-she,LI Yuan-quan,TIAN Ai-jun (Beijing General Research Institute of Mining and Metallurgy,Beijing 100044,China)

参考文献(References)：

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• (2)何广沂.大量石方松动控制爆破新技术[M].北京:中国铁道出版社,1995.
• (3)刘殿忠.工程爆破实用手册[M].北京:冶金工业出版社,1999.
• (4)段浩焰.不良地质条件下改善边坡预裂爆破效果的实践[J].工程爆破,2007,13(1):44-46.