【摘要】 明确隧道爆破应力波产生机制，是实现隧道结构爆破动力灾害有效控制的前提。针对隧道开挖爆破特点及隧道围岩空间形态特点，基于应力波理论与柱状装药爆破作用原理，建立了隧道爆破应力波理论分析模型，求解了隧道爆破应力波的产生机制。结合典型隧道围岩全断面开挖爆破特点，分别基于等效数值模型与理论分析模型，计算分析了隧道围岩质点振动特征，数值模拟与理论分析结果接近，建立的隧道爆破应力波理论分析模型较为可靠。更多还原

【Abstract】 In order to achieve an effective control of structures dynamic disasters during tunnel blasting, it is an essential precondition to know the generation mechanism of blast stress wave. According to the characteristics of tunnel blasting and the spatial morphology of surrounding rock, a theoretical analysis model for tunnel blast stress wave is established and the generation mechanism of blast stress wave is solved by combining stress wave theory and cylindrical charge blasting characteristics. Based on the background of surrounding rock with full-face blasting in a typical tunnel project, the peak particle vibration velocities of surrounding rock are calculated separately based on the equivalent numerical model and the proposed theoretical analysis model. The calculated results verify the rationality of the proposed theoretical analysis model.更多还原