刘维忠;
LIU Wei-zhong(Xigou Mine of Gansu Jiu Steel Group Hongxing Iron & Steel Co.Ltd., Jiayuguan 735102,Gansu,China)

• 1:甘肃酒钢集团宏兴钢铁股份有限公司西沟矿

摘要(Abstract)：

为满足酒钢集团西沟矿扩能改造项目工程要求,在复杂地质、地形及周围环境条件下,采用了双层硐室条形药包布置、延时起爆的硐室爆破技术。针对不同地形条件,采用不同的最小抵抗线爆破参数,取得了理想的爆破效果。工程实践证明,只要爆破参数合理、安全防护得当,硐室爆破技术可以在复杂地质、地形及周围环境条件下推广应用。
To meet the requirement of the revamp project of capacity expansion of Xigou mine of Jiuquan Iron & Steel Group,chamber blasting technique of two-layer chamber linear charge and millisecond delay initiation was adopted under the complicated geology,topography and surrounding conditions.Various blasting parameters were employed in accordance with topography.Ideal blasting effect was achieved.The practice of the project proved that chamber blasting could be popularized in the complicated geology,topography and surrounding conditions as long as blasting parameters were reasonable and safety protections were proper.

关键词(KeyWords)： 硐室爆破;条形药包;延时爆破;爆破参数;安全防护
Chamber blasting;Linear charge;Delay blasting;Blasting prarmeter;Safety protection

Abstract:

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基金项目(Foundation):

作者(Authors): 刘维忠;
LIU Wei-zhong(Xigou Mine of Gansu Jiu Steel Group Hongxing Iron & Steel Co.Ltd., Jiayuguan 735102,Gansu,China)

参考文献(References)：

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