【摘要】 通过分析研究矿井深部岩巷的高应力分布特征,采用动光弹模型试验对不同应力条件下的爆破作用机理进行了探讨;通过现场试验,提出了适用于高应力岩巷掘进的控制爆破设计与施工技术。更多还原

【Abstract】 Through analysing the high stress distribution characteristics of the deep tunnels and studying the functions of the blasting stress field under different boundary pressures using the dynamic photoelastic device, the mechanism and technology of controlled blasting that are suitable for high stress rock tunneling are proposed. The field experiments show that the technology is safe, efficient for underground tunneling, and has wide and good application prospects.更多还原