余吾矿深孔爆破径向不耦合系数研究

Study of Radial Uncoupling Coefficients of Deep Hole Blasting in Yuwu Coal Mine

针对潞安集团余吾煤业坚硬顶板的深孔爆破处理方法,结合N1101工作面工程实践背景,提出深孔爆破径向不耦合系数这一问题,通过ANSYS/LS-DYNA软件进行数值模拟,对比分析模拟结果,确定出N1101工作面深孔爆破中径向不耦合系数取值为1.15~1.5。

In view of the Lu＇an group Yuwu coal hard roof of deep hole blasting method ,combined with the background N1101 face engineering practice,proposed the problem of deep hole blasting radial uncoupling coefficient,through the ANSYS/LS-DYNA software to carry on the numerical simulation, comparison and analysis the simulation results,identify Nll01 face deep hole blasting in the radial direction uncoupling coefficient values range are from 1.15 to 1.5.