In order to analyze the medium-length hole blasting impact on slope stability, this paper is based on practical engineering of a small open pit mine in Fujian. On the basis of determing the parameters of explosive and blasting borehole net, introduces the technology of decreasing vibration and uses LS-DYNA finite element analysis program to make numerical simulation test for the medium-length hole blasting impact on slope stability, it draws guiding conclusions.%为了分析露天矿山中深孔爆破对边坡稳定性影响机理，结合福建某小型露天矿山工程实际，在确定炸药及爆破孔网参数的基础上，引入降振技术并运用LS-DYNA有限元分析程序对中深孔爆破边坡影响情况进行数值模拟试验，得出了有指导意义的结论。
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