宗琦
Zong Qi(Huainan Institute of Mining, nhui 232001)

• 1:淮南矿业学院

摘要(Abstract)：

通过对直眼筒形掏槽爆破破岩机理的理论分析认为：在岩石条件和装药条件一定的情况下，影响槽腔内爆破大块的主要原因是相邻爆炸应力波的相互作用造成无拉应力区及拉应力降低区和孔间贯通裂隙导致爆炸能量过早逸散。
Through theoretical analysis on the mechanism of the parallel blasthole column cut, this paper reaches such a conclusion that under the condition of constant rock and charging, the presence of large block is the main reason that the mutual action of blasting stress wave resulted in no draw stress zone and decreased draw stress zone, and earlier release of blasting energy from penetrating crake of adjacent blasthole.

关键词(KeyWords)： 直眼掏槽,爆破大块,应力波,裂隙
Parallel blasthole column cut Large block Stress wave Crake

Abstract:

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基金项目(Foundation):

作者(Author): 宗琦
Zong Qi(Huainan Institute of Mining, nhui 232001)

参考文献(References)：

• 1王文龙．钻眼爆破．北京：煤炭工业出版社，1989．2刘积铭等．立井4．0m深孔光爆新技术研究．淮南矿业学院．1992．