爆炸荷载下岩石损伤机理及其力学特性研究

Damage mechanism and mechanical behaviors of rock under explosion loading

基于所建立的反映岩石冲击压缩、拉伸损伤理论模型以及深孔微差爆破数值模拟结果,研究了爆炸载荷作用下岩石损伤演化和破碎规律,分析了岩石的动态力学特性;通过对水平边界条件下爆破破岩物理、力学过程的研究,探讨了深孔微差爆破的作用机制和爆破设计原则。

Based on the damage model which connects the shock compression, tensile damage and the numerical simulation results of deep-hole blasting, the damage evolution rules and the mechanical properties of rock under explosion loading are discussed deeply. The fragmentation process is fairly delineated during blasting, which contributes probe into the designing principle of millisecond blasting under the horizontal boundary condition.