With the mining enters the deep stage, in order to improve the production efficiency of mine and ensure production safety and aiming at the unsatisfying blasting effects, this paper designs and optimizes blasting parameters of deep stope based on the blasting mechanism and engineering practical experience. Utilizing the numerical simulation of finite element software with ANSYS/LS-DYNA various schemes, analysis validations on the blasting stress field under different parameters are conducted. The simulation results show that:When the holes and rows spacing are 3.0 ×2.7 and 3.0 ×2.8, the effective stress of discrete cells between blast holes is bigger than the dynamic tensile strength that rocks can be broken and the blasting effects is better, then confirmed the best blasting parameter design.%随着矿山开采进入深部阶段,为了解决现有爆破参数在深部开采时存在爆破效果不理想等问题,保障矿山安全高效的生产,本文基于理论分析和工程经验,对爆破参数进行了设计优化,并通过有限元软件ANSYS/LS-DYNA进行多种方案的数值模拟,对不同参数下的爆破应力场进行分析验证.模拟计算结果表明:当孔排距为3.0×2.7与3.0×2.8时,炮孔间特定单元有效应力值大于岩石的动态抗拉强度,岩石能够被破碎,且破碎效果较好,从而确定了最优的爆破参数设计.
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