工程爆破

2013, v.19;No.73(03) 30-32

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经山寺铁矿减少深孔台阶爆破根底的工程实践
ENGINEERING PRACTICE OF REDUCING BLASTING TIGHT BOTTOM OF DEEP-HOLE BENCH IN JINGSHANSI IRON MINE

陈晶晶;赵博深;白玉奇;
CHEN Jing-jing1,ZHAO Bo-shen2,BAI Yu-qi2(1.Guangdong Hongda Blasting Engineering Co.,Ltd.,Guangzhou 510623,China;2.China University of Mining and Technology(Beijing),Beijing 100083,China)

摘要(Abstract):

在河南经山寺露天铁矿深孔台阶爆破中,对近千次爆破实际工程进行观察与分析,在爆破参数及其他因素基本合理的情况下,通过局部加大超深、在不同地质条件下改变炮孔密集系数m值、采用V型起爆技术等爆破措施,减少了根底从而降低了爆破成本,提高了经济效益。
Almost one thousand deep-hole bench blasting projects of Jingshansi open-pit iron ore in Henan were observed and analyzed.When blasting parameters and other factors were reasonable,increasing Super-deep partly and changing coefficient of hole spacing under different geological conditions,V-type initiation was adopted.It reduced the blasting tight bottom so as to reduce the cost of blasting and increase economic benefit.

关键词(KeyWords): 爆破根底;深孔台阶爆破;超深;密集系数;V型起爆
Blasting tight bottom;Deep hole bench blasting;Super-deep;Coefficient of hole spacing;V-type initiation

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作者(Authors): 陈晶晶;赵博深;白玉奇;
CHEN Jing-jing1,ZHAO Bo-shen2,BAI Yu-qi2(1.Guangdong Hongda Blasting Engineering Co.,Ltd.,Guangzhou 510623,China;2.China University of Mining and Technology(Beijing),Beijing 100083,China)

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