【摘要】 基于分形理论,针对爆破地震信号的传播规律和特征,建立了其分形盒维数模型,应用这一模型计算出在岩石场地进行深孔爆破试验时所采集的爆破地震信号的分形盒维数值D。通过分析所得的分形盒维数值D的数理意义及其与场地介质的关系,研究爆破地震信号的分形特征。结果表明,爆破震动信号的分形盒数值D可作为描述爆破地震信号一个新的重要参数,该参量能够反映爆破地震波传递介质岩体性质的系统信息。更多还原

【Abstract】 Based on the characteristics of the blasting seismic wave and the fractal theory, this paper proposes a fractal box dimension model. By using the test data of the deep-hole blasting experiments carried out on a rock site, the fractal box dimension values D of blasting seismic signals is calculated according to this model. An analysis on the relationship between box dimension values D and the medium characteristics shows that the fractal box dimension value D of the blasting seismic wave can be used as a new important parameter to describe the blasting seismic wave. It reflects some important information concerning the properties of rock, the medium of the blasting seismic wave.更多还原