刘翼;卢磊;董金成;
LIU Yi,LU Lei,DONG Jin-cheng(Guangdong Handar Blasting Engineering Co.Ltd.,Guangzhou 510623,China)

• 1:广东宏大爆破股份有限公司

摘要(Abstract)：

为了找出炸药单耗和延米爆破方量的实际值与预算值之间的差别原因,对我国北方一大型土石方爆破工程的钻孔按施工进度进行了统计。并对孔深与延米爆破方量的关系进行了分析。研究发现小于5m深的炮孔数量的比例较大,是降低综合延米爆破方量的一大主要因素。因此得出,缓斜坡的台阶爆破工程中,在孔网参数和台阶高度一定的条件下,通过优化组合,减少浅孔的数量,可以有效地提高项目综合延米爆破方量,从而为缓斜坡台阶爆破降低项目成本指明了方向。
In order to find the deviation of unit explosion consumption and blasting stone quantity of pre-meter between actual value and estimated value.Bore-holes statistics of a large-scaled cubic meter of earth and stone project in north china were carried out according to construction progress.The relation of hole-depth and blasting stone quantity of pre-meter was analyzed.It was found that high proportion of bore-holes less than 5m deep was main factor that induced comprehensive blasting stone quantity of pre-meter.So it can draw a conclusion that comprehensive blasting stone quantity of pre-meter can be increased effectively through optimization and combination and decreasing quantity of shallow bore-holes in the condition of given hole grid parameter and bench height to flat gradient bench blasting project.The conclusion points out direction for reducing cost of flat gradient bench blasting project.

关键词(KeyWords)： 土石方爆破;延米爆破方量;孔网参数;台阶爆破;钻孔统计分析
Soil and rock blasting;Blasting stone quantity of pre-meter;Hole grid parameter;Bench blasting;Statistics analysis of bore-hole

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 刘翼;卢磊;董金成;
LIU Yi,LU Lei,DONG Jin-cheng(Guangdong Handar Blasting Engineering Co.Ltd.,Guangzhou 510623,China)

参考文献(References)：

• (1)刘殿中,杨仕春.工程爆破实用手册[M].北京:冶金工业出版社,2004.
• (2)于亚伦.工程爆破理论与技术[M].北京:冶金工业出版社,2007.
• (3)郑炳旭,王永庆,魏晓林.城镇石方爆破[M].北京:冶金工业出版社,2004.
• (4)郑炳旭,王永庆,李萍丰.建设工程台阶爆破[M].北京:冶金工业出版社,2005.