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目前,在我国大多数岩石工程开挖形式中,爆破破碎较为普遍,这种开挖形式需要结合当地的地质情况,合理地选择炸药,以减少爆破对周围岩石的损害最终达到爆破程度最优化的目的。本文集中阐述了爆破理论、相关实验的概念,着重介绍了在爆破破碎中冲击破以及应力波在岩石上的作用,同时结合岩石的性质、地质条件以及爆破设计等方面的因素,针对排间微差爆破,进行模拟实验。最后对孔间微差爆破进行分析,并对此提出了有效的微差时间确定措施。
At present, most of the rock excavation in our country, blasting broken more common, this form of excavation needs to be combined with the local geological conditions, the reasonable choice of explosives, in order to reduce the impact of blasting on the surrounding rock and ultimately to achieve the optimal degree of blasting purpose. In this paper, the concepts of blasting theory and related experiment are emphatically described. The impact breaking and the effect of stress wave on the rock during blasting and crushing are emphatically introduced. Combined with the factors such as the nature of rock, geological conditions and blasting design, Poor blasting, simulation experiments. Finally, the analysis of the differential blasting between holes and the effective measures to determine the time difference are put forward.