地下装药爆炸时,将在岩体介质中激起冲击波或应力波。应力波在岩体中的传播,是一个波动力学问题。研究它的传播与衰减规律,无论在理论上或实践上均有很重要的意义。由于传感器无法与传播介质完全耦合、阻抗失配、波绕流以及高压动态标定存在问题等,使直接测量自由场应力波工作很难取得良好的效果。 When the underground charge explodes, shock waves or stress waves are excited in the rock mass. Stress wave propagation in rock mass is a wave mechanics problem. To study the law of its propagation and attenuation has great significance both in theory and in practice. Since the sensor can not be fully coupled with the propagation medium, the impedance mismatch, wave around the flow and high-pressure dynamic calibration problems, so that the direct measurement of free-field stress wave is difficult to achieve good results.